Summary

ae0c756b0525ff1b_realex.exe

File ae0c756b0525ff1b_realex.exe

Summary
Download Resubmit sample

Size 423.0KB
Type PE32 executable (GUI) Intel 80386 (stripped to external PDB), for MS Windows, UPX compressed
MD5 e1e40c77d255d32d1a5a45cdbdaba8b1
SHA1 3ad2a6f09ec8a44bf43e6353d4b565c8818ad2f0
SHA256 ae0c756b0525ff1b559a3212438d8458c753d947b321c800736f37771cde36fa
SHA512
4bbc4e30908597d74617f121308f63516ace512650808186df377ec13aad074c7854f0e732cac35196b71d1ec295da961adad0dc34a28deb5aea3fcd0667cd33
CRC32 76E42B46
ssdeep None
Yara
  • suspicious_packer_section - The packer/protector section names/keywords
  • screenshot - Take screenshot
  • keylogger - Run a keylogger
  • win_mutex - Create or check mutex
  • win_registry - Affect system registries
  • win_files_operation - Affect private profile
  • win_hook - Affect hook table

Score

This file is very suspicious, with a score of 10 out of 10!

Please notice: The scoring system is currently still in development and should be considered an alpha feature.

Autosubmit

Parent_Task_ID:5931459

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Information on Execution

Analysis
Category Started Completed Duration Routing Logs
FILE Feb. 16, 2025, 6:32 p.m. Feb. 16, 2025, 6:40 p.m. 506 seconds internet Show Analyzer Log
Show Cuckoo Log

Analyzer Log

2025-02-13 04:25:56,015 [analyzer] DEBUG: Starting analyzer from: C:\tmpht3fil
2025-02-13 04:25:56,030 [analyzer] DEBUG: Pipe server name: \??\PIPE\deErjCgpVghPhMeRhphHqSI
2025-02-13 04:25:56,030 [analyzer] DEBUG: Log pipe server name: \??\PIPE\bLskRSTbOOGtHllLjdPJG
2025-02-13 04:25:56,030 [analyzer] DEBUG: No analysis package specified, trying to detect it automagically.
2025-02-13 04:25:56,030 [analyzer] INFO: Automatically selected analysis package "exe"
2025-02-13 04:25:56,342 [analyzer] DEBUG: Started auxiliary module Curtain
2025-02-13 04:25:56,342 [analyzer] DEBUG: Started auxiliary module DbgView
2025-02-13 04:25:56,796 [analyzer] DEBUG: Started auxiliary module Disguise
2025-02-13 04:25:57,000 [analyzer] DEBUG: Loaded monitor into process with pid 504
2025-02-13 04:25:57,000 [analyzer] DEBUG: Started auxiliary module DumpTLSMasterSecrets
2025-02-13 04:25:57,000 [analyzer] DEBUG: Started auxiliary module Human
2025-02-13 04:25:57,000 [analyzer] DEBUG: Started auxiliary module InstallCertificate
2025-02-13 04:25:57,000 [analyzer] DEBUG: Started auxiliary module Reboot
2025-02-13 04:25:57,078 [analyzer] DEBUG: Started auxiliary module RecentFiles
2025-02-13 04:25:57,078 [analyzer] DEBUG: Started auxiliary module Screenshots
2025-02-13 04:25:57,078 [analyzer] DEBUG: Started auxiliary module Sysmon
2025-02-13 04:25:57,078 [analyzer] DEBUG: Started auxiliary module LoadZer0m0n
2025-02-13 04:25:57,203 [lib.api.process] INFO: Successfully executed process from path u'C:\\Users\\ADMINI~1\\AppData\\Local\\Temp\\ae0c756b0525ff1b_realex.exe' with arguments '' and pid 1836
2025-02-13 04:25:57,390 [analyzer] DEBUG: Loaded monitor into process with pid 1836
2025-02-13 04:25:57,405 [analyzer] INFO: Added new file to list with pid 1836 and path C:\Windows\SysWOW64\sysctl.exe
2025-02-13 04:25:57,421 [analyzer] INFO: Added new file to list with pid 1836 and path C:\Windows\SysWOW64\realex.exe
2025-02-13 04:25:57,500 [analyzer] INFO: Injected into process with pid 908 and name u'sysctl.exe'
2025-02-13 04:25:57,655 [analyzer] DEBUG: Loaded monitor into process with pid 908
2025-02-13 04:25:58,203 [analyzer] INFO: Process with pid 1836 has terminated
2025-02-13 04:29:16,217 [analyzer] INFO: Analysis timeout hit, terminating analysis.
2025-02-13 04:29:17,453 [analyzer] INFO: Terminating remaining processes before shutdown.
2025-02-13 04:29:17,453 [lib.api.process] INFO: Successfully terminated process with pid 908.
2025-02-13 04:29:17,467 [analyzer] INFO: Analysis completed.

Cuckoo Log

2025-02-16 18:32:14,872 [cuckoo.core.scheduler] INFO: Task #5956668: acquired machine win7x6411 (label=win7x6411)
2025-02-16 18:32:14,873 [cuckoo.core.resultserver] DEBUG: Now tracking machine 192.168.168.211 for task #5956668
2025-02-16 18:32:15,333 [cuckoo.auxiliary.sniffer] INFO: Started sniffer with PID 1447422 (interface=vboxnet0, host=192.168.168.211)
2025-02-16 18:32:15,736 [cuckoo.machinery.virtualbox] DEBUG: Starting vm win7x6411
2025-02-16 18:32:16,416 [cuckoo.machinery.virtualbox] DEBUG: Restoring virtual machine win7x6411 to vmcloak
2025-02-16 18:35:13,383 [cuckoo.core.guest] INFO: Starting analysis #5956668 on guest (id=win7x6411, ip=192.168.168.211)
2025-02-16 18:35:14,388 [cuckoo.core.guest] DEBUG: win7x6411: not ready yet
2025-02-16 18:35:19,412 [cuckoo.core.guest] INFO: Guest is running Cuckoo Agent 0.10 (id=win7x6411, ip=192.168.168.211)
2025-02-16 18:35:19,480 [cuckoo.core.guest] DEBUG: Uploading analyzer to guest (id=win7x6411, ip=192.168.168.211, monitor=latest, size=6660546)
2025-02-16 18:35:20,650 [cuckoo.core.resultserver] DEBUG: Task #5956668: live log analysis.log initialized.
2025-02-16 18:35:21,612 [cuckoo.core.resultserver] DEBUG: Task #5956668 is sending a BSON stream
2025-02-16 18:35:21,971 [cuckoo.core.resultserver] DEBUG: Task #5956668 is sending a BSON stream
2025-02-16 18:35:22,340 [cuckoo.core.resultserver] DEBUG: Task #5956668 is sending a BSON stream
2025-02-16 18:35:22,834 [cuckoo.core.resultserver] DEBUG: Task #5956668: File upload for 'shots/0001.jpg'
2025-02-16 18:35:22,854 [cuckoo.core.resultserver] DEBUG: Task #5956668 uploaded file length: 135652
2025-02-16 18:35:35,463 [cuckoo.core.guest] DEBUG: win7x6411: analysis #5956668 still processing
2025-02-16 18:35:50,542 [cuckoo.core.guest] DEBUG: win7x6411: analysis #5956668 still processing
2025-02-16 18:36:05,619 [cuckoo.core.guest] DEBUG: win7x6411: analysis #5956668 still processing
2025-02-16 18:36:20,875 [cuckoo.core.guest] DEBUG: win7x6411: analysis #5956668 still processing
2025-02-16 18:36:36,129 [cuckoo.core.guest] DEBUG: win7x6411: analysis #5956668 still processing
2025-02-16 18:36:51,318 [cuckoo.core.guest] DEBUG: win7x6411: analysis #5956668 still processing
2025-02-16 18:37:06,437 [cuckoo.core.guest] DEBUG: win7x6411: analysis #5956668 still processing
2025-02-16 18:37:21,747 [cuckoo.core.guest] DEBUG: win7x6411: analysis #5956668 still processing
2025-02-16 18:37:36,965 [cuckoo.core.guest] DEBUG: win7x6411: analysis #5956668 still processing
2025-02-16 18:37:52,086 [cuckoo.core.guest] DEBUG: win7x6411: analysis #5956668 still processing
2025-02-16 18:38:07,169 [cuckoo.core.guest] DEBUG: win7x6411: analysis #5956668 still processing
2025-02-16 18:38:22,283 [cuckoo.core.guest] DEBUG: win7x6411: analysis #5956668 still processing
2025-02-16 18:38:37,368 [cuckoo.core.guest] DEBUG: win7x6411: analysis #5956668 still processing
2025-02-16 18:38:41,078 [cuckoo.core.resultserver] DEBUG: Task #5956668: File upload for 'curtain/1739417356.41.curtain.log'
2025-02-16 18:38:41,091 [cuckoo.core.resultserver] DEBUG: Task #5956668 uploaded file length: 36
2025-02-16 18:38:42,012 [cuckoo.core.resultserver] DEBUG: Task #5956668: File upload for 'sysmon/1739417357.34.sysmon.xml'
2025-02-16 18:38:42,111 [cuckoo.core.resultserver] DEBUG: Task #5956668 uploaded file length: 12599246
2025-02-16 18:38:42,138 [cuckoo.core.resultserver] DEBUG: Task #5956668: File upload for 'files/ebfc7ab9dfa960da_sysctl.exe'
2025-02-16 18:38:42,143 [cuckoo.core.resultserver] DEBUG: Task #5956668 uploaded file length: 433794
2025-02-16 18:38:42,148 [cuckoo.core.resultserver] DEBUG: Task #5956668 had connection reset for <Context for LOG>
2025-02-16 18:38:43,392 [cuckoo.core.guest] INFO: win7x6411: analysis completed successfully
2025-02-16 18:38:43,401 [cuckoo.core.plugins] DEBUG: Stopped auxiliary module: Redsocks
2025-02-16 18:38:43,420 [cuckoo.core.plugins] DEBUG: Stopped auxiliary module: Sniffer
2025-02-16 18:38:44,615 [cuckoo.machinery.virtualbox] INFO: Successfully generated memory dump for virtual machine with label win7x6411 to path /srv/cuckoo/cwd/storage/analyses/5956668/memory.dmp
2025-02-16 18:38:44,616 [cuckoo.machinery.virtualbox] DEBUG: Stopping vm win7x6411
2025-02-16 18:40:39,972 [cuckoo.core.resultserver] DEBUG: Stopped tracking machine 192.168.168.211 for task #5956668
2025-02-16 18:40:41,280 [cuckoo.core.scheduler] DEBUG: Released database task #5956668
2025-02-16 18:40:41,295 [cuckoo.core.scheduler] INFO: Task #5956668: analysis procedure completed

Signatures

Yara rules detected for file (7 events)
description The packer/protector section names/keywords rule suspicious_packer_section
description Take screenshot rule screenshot
description Run a keylogger rule keylogger
description Create or check mutex rule win_mutex
description Affect system registries rule win_registry
description Affect private profile rule win_files_operation
description Affect hook table rule win_hook
Allocates read-write-execute memory (usually to unpack itself) (2 events)
Time & API Arguments Status Return Repeated

NtAllocateVirtualMemory

 process_identifier: 1836
region_size: 4096
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 0
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x003d0000
allocation_type: 4096 (MEM_COMMIT)
process_handle: 0xffffffff
1 0 0

NtAllocateVirtualMemory

 process_identifier: 908
region_size: 4096
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 0
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x00770000
allocation_type: 4096 (MEM_COMMIT)
process_handle: 0xffffffff
1 0 0
The executable contains unknown PE section names indicative of a packer (could be a false positive) (1 event)
section .imports
One or more processes crashed (2 events)
Time & API Arguments Status Return Repeated

__exception__

 stacktrace: 
ae0c756b0525ff1b_realex+0x3624c @ 0x43624c
ae0c756b0525ff1b_realex+0x3d148 @ 0x43d148
ae0c756b0525ff1b_realex+0x40a52 @ 0x440a52
ae0c756b0525ff1b_realex+0x40ffb @ 0x440ffb
BaseThreadInitThunk+0x12 VerifyConsoleIoHandle-0xb3 kernel32+0x133aa @ 0x759e33aa
RtlInitializeExceptionChain+0x63 RtlAllocateActivationContextStack-0xa5 ntdll+0x39f72 @ 0x77759f72
RtlInitializeExceptionChain+0x36 RtlAllocateActivationContextStack-0xd2 ntdll+0x39f45 @ 0x77759f45

exception.instruction_r: c9 c2 10 00 cc cc cc cc cc 8b ff 55 8b ec 56 8b
exception.symbol: RaiseException+0x58 CloseHandle-0x9 kernelbase+0xc41f
exception.instruction: leave
exception.module: KERNELBASE.dll
exception.exception_code: 0xeedfade
exception.offset: 50207
exception.address: 0x75e9c41f
registers.esp: 1637720
registers.edi: 4459672
registers.eax: 1637720
registers.ebp: 1637800
registers.edx: 0
registers.ebx: 4459672
registers.esi: 4590436
registers.ecx: 7
1 0 0

__exception__

 stacktrace: 
sysctl+0x3624c @ 0x43624c
sysctl+0x3d148 @ 0x43d148
sysctl+0x40a52 @ 0x440a52
sysctl+0x40ffb @ 0x440ffb
BaseThreadInitThunk+0x12 VerifyConsoleIoHandle-0xb3 kernel32+0x133aa @ 0x759e33aa
RtlInitializeExceptionChain+0x63 RtlAllocateActivationContextStack-0xa5 ntdll+0x39f72 @ 0x77759f72
RtlInitializeExceptionChain+0x36 RtlAllocateActivationContextStack-0xd2 ntdll+0x39f45 @ 0x77759f45

exception.instruction_r: c9 c2 10 00 cc cc cc cc cc 8b ff 55 8b ec 56 8b
exception.symbol: RaiseException+0x58 CloseHandle-0x9 kernelbase+0xc41f
exception.instruction: leave
exception.module: KERNELBASE.dll
exception.exception_code: 0xeedfade
exception.offset: 50207
exception.address: 0x75e9c41f
registers.esp: 1637720
registers.edi: 4459672
registers.eax: 1637720
registers.ebp: 1637800
registers.edx: 0
registers.ebx: 4459672
registers.esi: 30804836
registers.ecx: 7
1 0 0
Creates executable files on the filesystem (2 events)
file C:\Windows\System32\realex.exe
file C:\Windows\System32\sysctl.exe
The executable is compressed using UPX (3 events)
section UPX0 description Section name indicates UPX
section UPX1 description Section name indicates UPX
section UPX2 description Section name indicates UPX
Installs itself for autorun at Windows startup (2 events)
reg_key HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\sysctl.exe reg_value C:\Windows\system32\sysctl.exe
reg_key HKEY_LOCAL_MACHINE\SOFTWARE\Classes\exefile\shell\open\command\(Default) reg_value C:\Windows\system32\realex.exe "%1" %*
File has been identified by 11 AntiVirus engine on IRMA as malicious (11 events)
G Data Antivirus (Windows) Virus: Gen:Trojan.ShellReg.AqZ@aKr29ak (Engine A)
Avast Core Security (Linux) Win32:Malware-gen
C4S ClamAV (Linux) Win.Malware.Dacic-10014176-0
F-Secure Antivirus (Linux) Trojan.TR/Crypt.XPACK.Gen3 [Aquarius]
eScan Antivirus (Linux) Gen:Trojan.ShellReg.AqZ@aKr29ak(DB)
ESET Security (Windows) a variant of Win32/Delf.TPV trojan
DrWeb Antivirus (Linux) Trojan.DownLoad4.2230
ClamAV (Linux) Win.Malware.Dacic-10014176-0
Bitdefender Antivirus (Linux) Gen:Trojan.ShellReg.AqZ@aKr29ak
Kaspersky Standard (Windows) HEUR:Trojan-Dropper.Win32.Daws.gen
Emsisoft Commandline Scanner (Windows) Gen:Trojan.ShellReg.AqZ@aKr29ak (B)
Screenshots
Name Response Post-Analysis Lookup
No hosts contacted.
IP Address Status Action VT Location
No hosts contacted.
Cuckoo

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