Analysis
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max time kernel
149s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
12-10-2024 01:02
Behavioral task
behavioral1
Sample
37b13059d29d1d237237c7e39994bd28_JaffaCakes118.exe
Resource
win7-20240903-en
General
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Target
37b13059d29d1d237237c7e39994bd28_JaffaCakes118.exe
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Size
301KB
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MD5
37b13059d29d1d237237c7e39994bd28
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SHA1
1ccebb230a943dbca2eda6d9ac3a83fa27b54bc4
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SHA256
3359ebdee5962621391361cf2bdc2906b410e79dfc34dd64ba9b1a10b0ef4b8f
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SHA512
1b6f8cf0a2a9008ee2021f32f85df638f27465e0c83e51d5238948eb75bdebc6695f6e64b66a2b9bf6fb3d95d69678249a86e64b98a2a3736c73dd6d973839df
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SSDEEP
768:Q8m1Sq4NQErBsH1tzoisBKQI6dObAG/dq8uW29Ifnca/yyR+P2ujfGiiXzoigXY8:Ssq+QV4rObAdXWpf/y+3oqodoox
Malware Config
Extracted
xtremerat
deadslayerx7.no-ip.org
Signatures
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Detect XtremeRAT payload 4 IoCs
resource yara_rule behavioral2/memory/2408-0-0x0000000010000000-0x000000001004D000-memory.dmp family_xtremerat behavioral2/memory/3244-1-0x0000000010000000-0x000000001004D000-memory.dmp family_xtremerat behavioral2/memory/3244-4-0x0000000010000000-0x000000001004D000-memory.dmp family_xtremerat behavioral2/memory/2408-5-0x0000000010000000-0x000000001004D000-memory.dmp family_xtremerat -
XtremeRAT
The XtremeRAT was developed by xtremecoder and has been available since at least 2010, and written in Delphi.
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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.
description ioc Process Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{42UC8HW6-K6U4-V010-YPLD-F6M807DR52RK} 37b13059d29d1d237237c7e39994bd28_JaffaCakes118.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{42UC8HW6-K6U4-V010-YPLD-F6M807DR52RK}\StubPath = "C:\\Windows\\system32\\Microsoft\\MicrosoftUpdate.exe restart" 37b13059d29d1d237237c7e39994bd28_JaffaCakes118.exe -
Adds Run key to start application 2 TTPs 3 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\RealtekSound = "C:\\Windows\\system32\\Microsoft\\MicrosoftUpdate.exe" 37b13059d29d1d237237c7e39994bd28_JaffaCakes118.exe Set value (str) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\RealtekSound = "C:\\Windows\\system32\\Microsoft\\MicrosoftUpdate.exe" 37b13059d29d1d237237c7e39994bd28_JaffaCakes118.exe Set value (str) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\system32\\Microsoft\\MicrosoftUpdate.exe" 37b13059d29d1d237237c7e39994bd28_JaffaCakes118.exe -
Drops file in System32 directory 3 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\Microsoft\MicrosoftUpdate.exe 37b13059d29d1d237237c7e39994bd28_JaffaCakes118.exe File created C:\Windows\SysWOW64\Microsoft\MicrosoftUpdate.exe 37b13059d29d1d237237c7e39994bd28_JaffaCakes118.exe File opened for modification C:\Windows\SysWOW64\Microsoft\ 37b13059d29d1d237237c7e39994bd28_JaffaCakes118.exe -
resource yara_rule behavioral2/memory/2408-0-0x0000000010000000-0x000000001004D000-memory.dmp upx behavioral2/memory/3244-1-0x0000000010000000-0x000000001004D000-memory.dmp upx behavioral2/memory/3244-4-0x0000000010000000-0x000000001004D000-memory.dmp upx behavioral2/memory/2408-5-0x0000000010000000-0x000000001004D000-memory.dmp upx -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 2 IoCs
pid pid_target Process procid_target 4928 3244 WerFault.exe 88 3848 3244 WerFault.exe 88 -
System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 37b13059d29d1d237237c7e39994bd28_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svchost.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2408 37b13059d29d1d237237c7e39994bd28_JaffaCakes118.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2408 wrote to memory of 3244 2408 37b13059d29d1d237237c7e39994bd28_JaffaCakes118.exe 88 PID 2408 wrote to memory of 3244 2408 37b13059d29d1d237237c7e39994bd28_JaffaCakes118.exe 88 PID 2408 wrote to memory of 3244 2408 37b13059d29d1d237237c7e39994bd28_JaffaCakes118.exe 88 PID 2408 wrote to memory of 3244 2408 37b13059d29d1d237237c7e39994bd28_JaffaCakes118.exe 88
Processes
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C:\Users\Admin\AppData\Local\Temp\37b13059d29d1d237237c7e39994bd28_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\37b13059d29d1d237237c7e39994bd28_JaffaCakes118.exe"1⤵
- Boot or Logon Autostart Execution: Active Setup
- Adds Run key to start application
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2408 -
C:\Windows\SysWOW64\svchost.exesvchost.exe2⤵
- System Location Discovery: System Language Discovery
PID:3244 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3244 -s 4803⤵
- Program crash
PID:4928
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3244 -s 4883⤵
- Program crash
PID:3848
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3244 -ip 32441⤵PID:1720
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 3244 -ip 32441⤵PID:2748
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Active Setup
1Registry Run Keys / Startup Folder
1Privilege Escalation
Boot or Logon Autostart Execution
2Active Setup
1Registry Run Keys / Startup Folder
1