Analysis
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max time kernel
118s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20240611-en -
resource tags
arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system -
submitted
20/06/2024, 03:10
Behavioral task
behavioral1
Sample
024fec3160957086108ccc537d1f8d6f_JaffaCakes118.dll
Resource
win7-20240611-en
4 signatures
150 seconds
General
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Target
024fec3160957086108ccc537d1f8d6f_JaffaCakes118.dll
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Size
8KB
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MD5
024fec3160957086108ccc537d1f8d6f
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SHA1
a727f0b62c2ff00d101bf8983d91a4e7a9ca3a1a
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SHA256
42d60ba9c224f75cc7bb0da9d2a8f55d80e71514553c3902de070d53067c2a31
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SHA512
ad218a0351837f4650def8d318a6d3768a13411999be9573a4b7fba2bb87ed81d65495e8d69d80518ecf31608afccad0d65a09174c45f35dc3472d6c42154fe6
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SSDEEP
192:t5xFHFY2P1mEi4XiJMSGe3yusvcLPZMFojJ6sPtJZU:nHa2P1mYeXyusUiFodPlJ
Malware Config
Signatures
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resource yara_rule behavioral1/memory/1540-0-0x0000000010000000-0x000000001000A000-memory.dmp upx -
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\{B8301AF7-D00E-4EA4-87C1-5FF4644FBBA1} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{B8301AF7-D00E-4EA4-87C1-5FF4644FBBA1}\ regsvr32.exe -
Modifies registry class 5 IoCs
description ioc Process Key created \REGISTRY\MACHINE\Software\Classes\Wow6432Node\CLSID\{B8301AF7-D00E-4EA4-87C1-5FF4644FBBA1} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B8301AF7-D00E-4EA4-87C1-5FF4644FBBA1}\ddd = "ddd" regsvr32.exe Key created \REGISTRY\MACHINE\Software\Classes\Wow6432Node\CLSID\{B8301AF7-D00E-4EA4-87C1-5FF4644FBBA1}\InprocServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B8301AF7-D00E-4EA4-87C1-5FF4644FBBA1}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\024fec3160957086108ccc537d1f8d6f_JaffaCakes118.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{B8301AF7-D00E-4EA4-87C1-5FF4644FBBA1}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2140 wrote to memory of 1540 2140 regsvr32.exe 28 PID 2140 wrote to memory of 1540 2140 regsvr32.exe 28 PID 2140 wrote to memory of 1540 2140 regsvr32.exe 28 PID 2140 wrote to memory of 1540 2140 regsvr32.exe 28 PID 2140 wrote to memory of 1540 2140 regsvr32.exe 28 PID 2140 wrote to memory of 1540 2140 regsvr32.exe 28 PID 2140 wrote to memory of 1540 2140 regsvr32.exe 28
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\024fec3160957086108ccc537d1f8d6f_JaffaCakes118.dll1⤵
- Suspicious use of WriteProcessMemory
PID:2140 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\024fec3160957086108ccc537d1f8d6f_JaffaCakes118.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:1540
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