Analysis
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max time kernel
121s -
max time network
123s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system -
submitted
15-04-2024 14:06
Static task
static1
Behavioral task
behavioral1
Sample
f13d983a16ae706c9cbc6a89d58271e2_JaffaCakes118.dll
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
f13d983a16ae706c9cbc6a89d58271e2_JaffaCakes118.dll
Resource
win10v2004-20240412-en
General
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Target
f13d983a16ae706c9cbc6a89d58271e2_JaffaCakes118.dll
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Size
162KB
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MD5
f13d983a16ae706c9cbc6a89d58271e2
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SHA1
124a2d4fcfbb21bc5900b752b099696a2e2e158c
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SHA256
1e69d355dd8393dead16a09915b4733175d083860da3a04ad87e0182a636fc14
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SHA512
b4731c121ce90b1dc747c53e44de7dece2a28d7f77a477c252556bc5ae9108d83d2224f95cec3bb36f54644f657e71475a7a4b4d249d7db8e7e3a109bde64597
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SSDEEP
3072:QmwVT6tonSx23N6YgPI48dgp9QTeo8eoxwED1hLoGyMv5M:QmwVsTk96Ygw48dgpZxxwSHUkO
Malware Config
Signatures
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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\{5a8e08ac-6bf5-74ef-9d80-b09eba3f3238} = "C:\\Windows\\System32\\Rundll32.exe \"C:\\Users\\Admin\\AppData\\Local\\Temp\\f13d983a16ae706c9cbc6a89d58271e2_JaffaCakes118.dll\" DllStub" regsvr32.exe -
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\{138a68b4-dafb-6de6-8285-a921b63bdedc} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{138a68b4-dafb-6de6-8285-a921b63bdedc}\NoExplorer = "\"\"" regsvr32.exe -
Modifies registry class 5 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{138a68b4-dafb-6de6-8285-a921b63bdedc}\InProcServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{138a68b4-dafb-6de6-8285-a921b63bdedc} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{138a68b4-dafb-6de6-8285-a921b63bdedc}\ = "agadoo browser enhancer" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{138a68b4-dafb-6de6-8285-a921b63bdedc}\InProcServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{138a68b4-dafb-6de6-8285-a921b63bdedc}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\f13d983a16ae706c9cbc6a89d58271e2_JaffaCakes118.dll" regsvr32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2996 wrote to memory of 1248 2996 regsvr32.exe 28 PID 2996 wrote to memory of 1248 2996 regsvr32.exe 28 PID 2996 wrote to memory of 1248 2996 regsvr32.exe 28 PID 2996 wrote to memory of 1248 2996 regsvr32.exe 28 PID 2996 wrote to memory of 1248 2996 regsvr32.exe 28 PID 2996 wrote to memory of 1248 2996 regsvr32.exe 28 PID 2996 wrote to memory of 1248 2996 regsvr32.exe 28
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\f13d983a16ae706c9cbc6a89d58271e2_JaffaCakes118.dll1⤵
- Suspicious use of WriteProcessMemory
PID:2996 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\f13d983a16ae706c9cbc6a89d58271e2_JaffaCakes118.dll2⤵
- Adds Run key to start application
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:1248
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