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Analysis
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max time kernel
150s -
max time network
130s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system -
submitted
19/04/2024, 06:58
Static task
static1
Behavioral task
behavioral1
Sample
f9c163b603c11db088b75e5e1afb5183_JaffaCakes118.dll
Resource
win7-20240319-en
General
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Target
f9c163b603c11db088b75e5e1afb5183_JaffaCakes118.dll
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Size
19KB
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MD5
f9c163b603c11db088b75e5e1afb5183
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SHA1
5314993f09c85ec64d213184579983ac462cf7e2
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SHA256
b219090ea8b35c048462e5b32793485f18ee1b16bac0776eabd604cf75238bec
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SHA512
ed62ebe3856d69fa9b72b067a4d6fd1367bcd7c89551045ecb26216579677fd568b02f8c37596a9ab1bb69784d44f552fba6bdf7c43308c737c2852e3baabc92
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SSDEEP
384:RPyZNjtU2mX7CJ7mzGaN0po5ZzBp3zMizEqSV90:JyZKCmdNAqH3z1EqSV
Malware Config
Signatures
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Installs/modifies Browser Helper Object 2 TTPs 2 IoCs
BHOs are DLL modules which act as plugins for Internet Explorer.
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{12596546-2036-9451-6058-658402589721} rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{12596546-2036-9451-6058-658402589721}\ = "opshabty.dll" rundll32.exe -
Drops file in System32 directory 1 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\verclsid.exe rundll32.exe -
Modifies registry class 6 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{12596546-2036-9451-6058-658402589721} rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{12596546-2036-9451-6058-658402589721}\InprocServer32\ = "C:\\Windows\\SysWow64\\opshabty.dll" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{12596546-2036-9451-6058-658402589721}\InprocServer32\ThreadingModel = "Apartment" rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{12596546-2036-9451-6058-658402589721}\InprocServer32 rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID rundll32.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2064 rundll32.exe 2064 rundll32.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 1668 wrote to memory of 2064 1668 rundll32.exe 83 PID 1668 wrote to memory of 2064 1668 rundll32.exe 83 PID 1668 wrote to memory of 2064 1668 rundll32.exe 83 PID 2064 wrote to memory of 1004 2064 rundll32.exe 85 PID 2064 wrote to memory of 1004 2064 rundll32.exe 85 PID 2064 wrote to memory of 1004 2064 rundll32.exe 85
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\f9c163b603c11db088b75e5e1afb5183_JaffaCakes118.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:1668 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\f9c163b603c11db088b75e5e1afb5183_JaffaCakes118.dll,#12⤵
- Installs/modifies Browser Helper Object
- Drops file in System32 directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2064 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\~DFD240640484.bat3⤵PID:1004
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
121B
MD509517fc62284f33e877a276463580bd1
SHA10b14fe1db4493818f9de0bf2a56ee5370b8d479a
SHA2566cc6bbb1f3f754b6894d84130f5f2d86569ac3a603e1632d3cefa028f22b6238
SHA5121b924dd216d0f38199cc6df215e65ff260aa48fa37aa620dabcbc616f434643bd1f2e617d66b14bd52900214148741565128ba9589782ba582fd7308369f4a4d