xtremerat | 46b0a38f19ebd24d0a1ec7cab92e98142fb2de1083a6741ebb0396c2114cd74e

General

Target
22e62a4fd93db220508df23f16c77ba4_JaffaCakes118.exe
Size 243KB
Sample240703-s511laxbre
SHA256 46b0a38f19ebd24d0a1ec7cab92e98142fb2de1083a6741ebb0396c2114cd74e
MD5 22e62a4fd93db220508df23f16c77ba4
SHA1 8586e5c6c2601d48057ad9f930dba3e889eba12f
SHA512 029ea0b5c6c91f7f5d0f1522b7895cbecc6f358efbc522b091fc72c5807ea5beb4e71bd71058a41fe042f2189051c7944f02358fcf70a05bb9b556709e822188
SSDEEP 3072:XFd2Afoka0uMMGYmKlMCJ+UrxkCkK9a7+Z3wCYdj8vK1HDvhk1eSkDyfCnewUmGR:1jQwuYKs7M3jvEu1nkaCneT3NmEQK
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

xtremerat persistence rat spyware

Malware Config

Extracted

Family

xtremerat

C2

umtakcicek.dyndns.org
ࠁ谀umtakcicek.dyndns.org

Signatures

Detect XtremeRAT payload 9 IoCs

resource	yara_rule
behavioral2/memory/1908-3-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/1908-4-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/1908-5-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/1908-6-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/1976-9-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/1908-11-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/1908-12-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/1976-14-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat
behavioral2/memory/1908-15-0x0000000010000000-0x000000001004A000-memory.dmp	family_xtremerat

XtremeRAT
The XtremeRAT was developed by xtremecoder and has been available since at least 2010, and written in Delphi.
persistence spyware rat xtremerat

Boot or Logon Autostart Execution: Active Setup 2 TTPs 2 IoCs

Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

persistence

Active Setup

T1547.014

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{R2WI1CKR-X553-362C-326D-0QL77F442L71}	22e62a4fd93db220508df23f16c77ba4_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{R2WI1CKR-X553-362C-326D-0QL77F442L71}\StubPath = "C:\\Windows\\Windows Live Messenger\\msnmsgr.exe restart"	22e62a4fd93db220508df23f16c77ba4_JaffaCakes118.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Live Messenger = "C:\\Windows\\Windows Live Messenger\\msnmsgr.exe"	22e62a4fd93db220508df23f16c77ba4_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Live Messenger = "C:\\Windows\\Windows Live Messenger\\msnmsgr.exe"	22e62a4fd93db220508df23f16c77ba4_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3628 set thread context of 1908	3628	22e62a4fd93db220508df23f16c77ba4_JaffaCakes118.exe	80

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Windows Live Messenger\msnmsgr.exe	22e62a4fd93db220508df23f16c77ba4_JaffaCakes118.exe
File opened for modification	C:\Windows\Windows Live Messenger\msnmsgr.exe	22e62a4fd93db220508df23f16c77ba4_JaffaCakes118.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
624	1976	WerFault.exe	81
3016	1976	WerFault.exe	81

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3628	22e62a4fd93db220508df23f16c77ba4_JaffaCakes118.exe
1908	22e62a4fd93db220508df23f16c77ba4_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 3628 wrote to memory of 1908	3628	22e62a4fd93db220508df23f16c77ba4_JaffaCakes118.exe	80
PID 3628 wrote to memory of 1908	3628	22e62a4fd93db220508df23f16c77ba4_JaffaCakes118.exe	80
PID 3628 wrote to memory of 1908	3628	22e62a4fd93db220508df23f16c77ba4_JaffaCakes118.exe	80
PID 3628 wrote to memory of 1908	3628	22e62a4fd93db220508df23f16c77ba4_JaffaCakes118.exe	80
PID 3628 wrote to memory of 1908	3628	22e62a4fd93db220508df23f16c77ba4_JaffaCakes118.exe	80
PID 3628 wrote to memory of 1908	3628	22e62a4fd93db220508df23f16c77ba4_JaffaCakes118.exe	80
PID 3628 wrote to memory of 1908	3628	22e62a4fd93db220508df23f16c77ba4_JaffaCakes118.exe	80
PID 3628 wrote to memory of 1908	3628	22e62a4fd93db220508df23f16c77ba4_JaffaCakes118.exe	80
PID 3628 wrote to memory of 1908	3628	22e62a4fd93db220508df23f16c77ba4_JaffaCakes118.exe	80
PID 3628 wrote to memory of 1908	3628	22e62a4fd93db220508df23f16c77ba4_JaffaCakes118.exe	80
PID 3628 wrote to memory of 1908	3628	22e62a4fd93db220508df23f16c77ba4_JaffaCakes118.exe	80
PID 3628 wrote to memory of 1908	3628	22e62a4fd93db220508df23f16c77ba4_JaffaCakes118.exe	80
PID 3628 wrote to memory of 1908	3628	22e62a4fd93db220508df23f16c77ba4_JaffaCakes118.exe	80
PID 1908 wrote to memory of 1976	1908	22e62a4fd93db220508df23f16c77ba4_JaffaCakes118.exe	81
PID 1908 wrote to memory of 1976	1908	22e62a4fd93db220508df23f16c77ba4_JaffaCakes118.exe	81
PID 1908 wrote to memory of 1976	1908	22e62a4fd93db220508df23f16c77ba4_JaffaCakes118.exe	81
PID 1908 wrote to memory of 1976	1908	22e62a4fd93db220508df23f16c77ba4_JaffaCakes118.exe	81

C:\Users\Admin\AppData\Local\Temp\22e62a4fd93db220508df23f16c77ba4_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\22e62a4fd93db220508df23f16c77ba4_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3628
- C:\Users\Admin\AppData\Local\Temp\22e62a4fd93db220508df23f16c77ba4_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\22e62a4fd93db220508df23f16c77ba4_JaffaCakes118.exe
  2⤵
  - Boot or Logon Autostart Execution: Active Setup
  - Adds Run key to start application
  - Drops file in Windows directory
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1908
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    PID:1976
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1976 -s 484
      4⤵
      Program crash
      PID:624
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1976 -s 492
      4⤵
      Program crash
      PID:3016