Analysis
- max time kernel
140s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system - submitted
28/09/2024, 12:27
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
fc4be56565a028b5951a712d02ffc543_JaffaCakes118.exe
Resource
win7-20240903-en
9 signatures
150 seconds
General
- Target fc4be56565a028b5951a712d02ffc543_JaffaCakes118.exe
- Size 700KB
- Sample240928-pmxcxaycld
- SHA256 d601e0e786396579498c7f143d9a3dd18c1b094acb54208781e5a0a93630e810
- MD5 fc4be56565a028b5951a712d02ffc543
- SHA1 20c1df245e681f90ab151e88aa5897aa3df51218
- SHA512 30aa17280be5ab75d8bbafe5e4588b3e2d30b053f63fd68f35cc4790c8e69c4a154556023ad9c74881c9773d727c66305f7bd39c5cd82fef91ac101c8a75a0f9
- SSDEEP 6144:OlUUm/cPUQ5BjRr9pu0g0U8EeJgDv7EC3Zhvm2dJXJLX8kGekn1YdEzp8GS:6UB/CB9r9kWJGvDpN/dTQ1C+PS
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation fc4be56565a028b5951a712d02ffc543_JaffaCakes118.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4652 set thread context of 1280 4652 installutil.exe 92 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 4 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 fc4be56565a028b5951a712d02ffc543_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language installutil.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language installutil.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe - Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 1888 schtasks.exe - Suspicious behavior: EnumeratesProcesses 5 IoCs
pid Process 4652 installutil.exe 4652 installutil.exe 1280 installutil.exe 1280 installutil.exe 1280 installutil.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1280 installutil.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 4652 installutil.exe Token: SeDebugPrivilege 1280 installutil.exe - Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 4908 wrote to memory of 4652 4908 fc4be56565a028b5951a712d02ffc543_JaffaCakes118.exe 82 PID 4908 wrote to memory of 4652 4908 fc4be56565a028b5951a712d02ffc543_JaffaCakes118.exe 82 PID 4908 wrote to memory of 4652 4908 fc4be56565a028b5951a712d02ffc543_JaffaCakes118.exe 82 PID 4652 wrote to memory of 1280 4652 installutil.exe 92 PID 4652 wrote to memory of 1280 4652 installutil.exe 92 PID 4652 wrote to memory of 1280 4652 installutil.exe 92 PID 4652 wrote to memory of 1280 4652 installutil.exe 92 PID 4652 wrote to memory of 1280 4652 installutil.exe 92 PID 4652 wrote to memory of 1280 4652 installutil.exe 92 PID 4652 wrote to memory of 1280 4652 installutil.exe 92 PID 4652 wrote to memory of 1280 4652 installutil.exe 92 PID 1280 wrote to memory of 1888 1280 installutil.exe 93 PID 1280 wrote to memory of 1888 1280 installutil.exe 93 PID 1280 wrote to memory of 1888 1280 installutil.exe 93
Processes
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C:\Users\Admin\AppData\Local\Temp\fc4be56565a028b5951a712d02ffc543_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\fc4be56565a028b5951a712d02ffc543_JaffaCakes118.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4908 -
C:\Windows\Microsoft.NET\Framework\v2.0.50727\installutil.exe"C:\Windows\Microsoft.NET\Framework\v2.0.50727\installutil.exe" /logtoconsole=false /logfile= /u "C:\Users\Admin\AppData\Local\Temp\fc4be56565a028b5951a712d02ffc543_JaffaCakes118.exe"2⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4652 -
C:\Windows\Microsoft.NET\Framework\v2.0.50727\installutil.exe"C:\Windows\Microsoft.NET\Framework\v2.0.50727\installutil.exe"3⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1280 -
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "DNS Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmpF637.tmp"4⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:1888
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\installutil.exe.log
- Size 810B
- SHA256 3e869a0a1c7bf2a7a88aa3d88c1f2ee467e9a7cbb04e736c06f6ff8707ceb5a1
- MD5 f3b51c9f33e1fffd6ec3e1553576a7ea
- SHA1 9f1770bc263331601f060491c574a44c5c530c63
- SHA512 eb00b0648d5d872f972e2d92c9d92cedd4fb0097a9cf86a3d8ed6a857283dcc74c1bd0b24dc4a6c54f844374b5378f218f913185e8ad0cc22c32d6729c35d504
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\tmpF637.tmp
- Size 1KB
- SHA256 fbad359469fc6aefb5695d01974f4edf50528f51f80d57b9eb0d8f2f81033cc0
- MD5 776580d2028b74ed89bb21146482bdff
- SHA1 d1a45290dedde63d8539a2fc8af866b430238bc7
- SHA512 de084f473db26ce159b639b02e7ffa263ae5b6c4c1da9f6932676dae4a6c65f082b1bcac673c45c2e2b84caa06d1860ea6f0545b81fd7b3e4f8fe5e802a160d3
- MD5 SHA1 SHA512