Analysis
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max time kernel
148s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240709-en -
resource tags
arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system -
submitted
19-07-2024 01:17
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
59df9da44abbe2573b3eba4e5f62d8c7_JaffaCakes118.dll
Resource
win7-20240708-en
windows7-x64
3 signatures
150 seconds
General
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Target
59df9da44abbe2573b3eba4e5f62d8c7_JaffaCakes118.dll
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Size
367KB
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MD5
59df9da44abbe2573b3eba4e5f62d8c7
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SHA1
5b5128e3e00c2dae7c6aa3a5bc73ba1bc7329945
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SHA256
7475940e0547aa972e92d1088ad66853c3b0210c3c9c1fffde4f6ce6ba8101f0
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SHA512
0e9f729c408e3e0fcc7b3b3d9f66aa42f28538ee6de1181d7398f005ec1046d82f2c283fa02c7bd46d67750def91d130f3c5d28a9d86df0582fa2878d1200683
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SSDEEP
6144:UxC4iCu6UotvNCAwt85wdCddZO7mnNYL/5TBkwBfmDSMl2FaM:UQ45tvNOxyc7mnI/5TewBfm+MEN
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\{8b4e654a-b425-e116-8a4a-750899943510} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{8b4e654a-b425-e116-8a4a-750899943510}\NoExplorer = "\"\"" regsvr32.exe -
Modifies registry class 5 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8b4e654a-b425-e116-8a4a-750899943510}\ = "coolblueads" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8b4e654a-b425-e116-8a4a-750899943510}\InProcServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8b4e654a-b425-e116-8a4a-750899943510}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\59df9da44abbe2573b3eba4e5f62d8c7_JaffaCakes118.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8b4e654a-b425-e116-8a4a-750899943510}\InProcServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{8b4e654a-b425-e116-8a4a-750899943510} regsvr32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4868 wrote to memory of 4404 4868 regsvr32.exe 84 PID 4868 wrote to memory of 4404 4868 regsvr32.exe 84 PID 4868 wrote to memory of 4404 4868 regsvr32.exe 84
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\59df9da44abbe2573b3eba4e5f62d8c7_JaffaCakes118.dll1⤵
- Suspicious use of WriteProcessMemory
PID:4868 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\59df9da44abbe2573b3eba4e5f62d8c7_JaffaCakes118.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:4404
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