Analysis
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max time kernel
140s -
max time network
140s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
31/10/2024, 05:32
Behavioral task
behavioral1
Sample
81cd522bbee329748be2dd219c88cce5_JaffaCakes118.dll
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
81cd522bbee329748be2dd219c88cce5_JaffaCakes118.dll
Resource
win10v2004-20241007-en
General
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Target
81cd522bbee329748be2dd219c88cce5_JaffaCakes118.dll
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Size
612KB
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MD5
81cd522bbee329748be2dd219c88cce5
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SHA1
1a70ded79eaec230f7810a0eb1dd6ed3f98ffd78
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SHA256
19ddc1f60f505a17da34fde25a21e8ea5aa604e0e060be2c13f07cbe155cb464
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SHA512
7ab39b101abe81948a99bb302dde9f8b718994dea7a43f297146efc2772049889f06ac9b7d81898c7508b30ef4b788c6b8d486e714cf43910aaa71b07b36da19
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SSDEEP
6144:IlXpXQs3kYR7M/yXWvW0/DVmVmYe0F4v5qsLKTbwhi4tVso9YAw5:0hPUYRo/dJ2TT4RjMkhi4zYAw5
Malware Config
Signatures
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Blocklisted process makes network request 5 IoCs
flow pid Process 5 1332 rundll32.exe 29 1332 rundll32.exe 43 1332 rundll32.exe 52 1332 rundll32.exe 67 1332 rundll32.exe -
Server Software Component: Terminal Services DLL 1 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\.Net CLR\Parameters\ServiceDll = "C:\\Users\\Admin\\AppData\\Local\\Temp\\81cd522bbee329748be2dd219c88cce5_JaffaCakes118.dll" rundll32.exe -
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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation rundll32.exe -
Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
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resource yara_rule behavioral2/memory/3228-0-0x0000000074CA0000-0x0000000074DBE000-memory.dmp upx behavioral2/memory/1332-1-0x0000000074CA0000-0x0000000074DBE000-memory.dmp upx behavioral2/memory/2708-2-0x0000000074CA0000-0x0000000074DBE000-memory.dmp upx behavioral2/memory/1332-4-0x0000000074CA0000-0x0000000074DBE000-memory.dmp upx behavioral2/memory/1332-8-0x0000000074CA0000-0x0000000074DBE000-memory.dmp upx behavioral2/memory/1332-12-0x0000000074CA0000-0x0000000074DBE000-memory.dmp upx behavioral2/memory/1332-16-0x0000000074CA0000-0x0000000074DBE000-memory.dmp upx behavioral2/memory/1332-20-0x0000000074CA0000-0x0000000074DBE000-memory.dmp upx behavioral2/memory/1332-24-0x0000000074CA0000-0x0000000074DBE000-memory.dmp upx behavioral2/memory/2708-25-0x0000000074CA0000-0x0000000074DBE000-memory.dmp upx behavioral2/memory/1332-26-0x0000000074CA0000-0x0000000074DBE000-memory.dmp upx behavioral2/memory/1332-30-0x0000000074CA0000-0x0000000074DBE000-memory.dmp upx -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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 rundll32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svchost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1332 rundll32.exe 1332 rundll32.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 3228 rundll32.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 1692 wrote to memory of 3228 1692 rundll32.exe 84 PID 1692 wrote to memory of 3228 1692 rundll32.exe 84 PID 1692 wrote to memory of 3228 1692 rundll32.exe 84 PID 2708 wrote to memory of 1332 2708 svchost.exe 86 PID 2708 wrote to memory of 1332 2708 svchost.exe 86 PID 2708 wrote to memory of 1332 2708 svchost.exe 86 PID 3228 wrote to memory of 5012 3228 rundll32.exe 88 PID 3228 wrote to memory of 5012 3228 rundll32.exe 88 PID 3228 wrote to memory of 5012 3228 rundll32.exe 88
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\81cd522bbee329748be2dd219c88cce5_JaffaCakes118.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:1692 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\81cd522bbee329748be2dd219c88cce5_JaffaCakes118.dll,#12⤵
- Server Software Component: Terminal Services DLL
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3228 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c del "C:\Windows\SysWOW64\rundll32.exe" > nul3⤵
- System Location Discovery: System Language Discovery
PID:5012
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C:\Windows\SysWOW64\svchost.exeC:\Windows\SysWOW64\svchost.exe -k ".Net CLR"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2708 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe c:\users\admin\appdata\local\temp\81cd522bbee329748be2dd219c88cce5_jaffacakes118.dll, Launch2⤵
- Blocklisted process makes network request
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:1332
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