Analysis
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max time kernel
81s -
max time network
19s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
01/10/2024, 07:53
Static task
static1
Behavioral task
behavioral1
Sample
04ed973a3a8cd8db83e338863813c7ba_JaffaCakes118.dll
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
04ed973a3a8cd8db83e338863813c7ba_JaffaCakes118.dll
Resource
win10v2004-20240910-en
General
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Target
04ed973a3a8cd8db83e338863813c7ba_JaffaCakes118.dll
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Size
236KB
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MD5
04ed973a3a8cd8db83e338863813c7ba
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SHA1
4a9c11c3efeb38b03770b3263bfac2274498d6bb
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SHA256
70d3e38edcbba5b28e174da95915a540976814940ad2fcd6e0ac25ab5ef5fed8
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SHA512
01caf812892c4fdca0058be52a7194ff332fb0f5ff95f0c8cdccdffddc152a471d50c949cd96a712f413c6b31b3e6ed3633310a929289dab9bc592f43da99c83
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SSDEEP
3072:SeqmgHwlaazN9U3J+P0wFp+bLrt2wkkI2:+Qj9U3jwO3rt5l
Malware Config
Signatures
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Adds autorun key to be loaded by Explorer.exe on startup 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\iguqxzxky = "{84e25d3c-0c6a-51bf-1d7b-0c6ad5b420c3}" rundll32.exe -
Loads dropped DLL 1 IoCs
pid Process 2728 rundll32.exe -
Drops file in System32 directory 4 IoCs
description ioc Process File created C:\Windows\SysWOW64\vthdkmkxl.dll rundll32.exe File opened for modification C:\Windows\SysWOW64\vthdkmkxl.dll rundll32.exe File created C:\Windows\SysWOW64\dbplsusft.dll rundll32.exe File opened for modification C:\Windows\SysWOW64\dbplsusft.dll rundll32.exe -
System Location Discovery: System Language Discovery 1 TTPs 1 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 -
Modifies registry class 5 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{84e25d3c-0c6a-51bf-1d7b-0c6ad5b420c3}\InprocServer32\ThreadingModel = "Apartment" rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{84e25d3c-0c6a-51bf-1d7b-0c6ad5b420c3} rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{84e25d3c-0c6a-51bf-1d7b-0c6ad5b420c3}\ rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{84e25d3c-0c6a-51bf-1d7b-0c6ad5b420c3}\InprocServer32 rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{84e25d3c-0c6a-51bf-1d7b-0c6ad5b420c3}\InprocServer32\ = "C:\\Windows\\SysWow64\\dbplsusft.dll" rundll32.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2728 rundll32.exe 2728 rundll32.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2728 rundll32.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2728 rundll32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2140 wrote to memory of 2728 2140 rundll32.exe 30 PID 2140 wrote to memory of 2728 2140 rundll32.exe 30 PID 2140 wrote to memory of 2728 2140 rundll32.exe 30 PID 2140 wrote to memory of 2728 2140 rundll32.exe 30 PID 2140 wrote to memory of 2728 2140 rundll32.exe 30 PID 2140 wrote to memory of 2728 2140 rundll32.exe 30 PID 2140 wrote to memory of 2728 2140 rundll32.exe 30
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\04ed973a3a8cd8db83e338863813c7ba_JaffaCakes118.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2140 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\04ed973a3a8cd8db83e338863813c7ba_JaffaCakes118.dll,#12⤵
- Adds autorun key to be loaded by Explorer.exe on startup
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2728
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
625KB
MD595e2376b3323f062eb562b8586d0f14a
SHA1453d4c3bf4a489433b593420a37bbffb7749875a
SHA256bd3fa8750123d00aa0967fba44372c46ea002681da9c9b77a4f9261553e26017
SHA512b898603d07a49237e4dfc6872d5caa7616bae1258926f10e66c4d3f0d81cccefac1e844395b65bb1f308fbc022061b52e51f60658d0a546c04b365b3428cc87d