Analysis
-
max time kernel
114s -
max time network
116s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system -
submitted
15-04-2024 17:30
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
f199d1cb902e8303d2a893f23408ab29_JaffaCakes118.dll
Resource
win7-20240221-en
3 signatures
150 seconds
General
-
Target
f199d1cb902e8303d2a893f23408ab29_JaffaCakes118.dll
-
Size
366KB
-
MD5
f199d1cb902e8303d2a893f23408ab29
-
SHA1
422b18ca443867b960e76b0485840ec2aafe7503
-
SHA256
c99dd15c5b17cb8f314f7067e1f5a6cc87eb54c47627bd8b6012288c5fcefe88
-
SHA512
ba5eaa1ea3dbbbe6be147ae8dda406c5f97a4113138327f566b7f23c3ae047857dc8e1bb4bd4c94abf6a289a31b6f4aeae32c05619618034a7371c261f573b96
-
SSDEEP
6144:i3oEiphpUsUxGBTWX9vrYcmUDevh+hV57ykLCLjsq+SfwTBUH4ngTWrbRp+TFN2i:i3oV55NWXtrYKeAL7yk04qPfwTuH4KIi
Malware Config
Signatures
-
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\{959c2a76-ca0e-d281-49c4-279fc9b7f9c0} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{959c2a76-ca0e-d281-49c4-279fc9b7f9c0}\NoExplorer = "\"\"" regsvr32.exe -
Modifies registry class 5 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{959c2a76-ca0e-d281-49c4-279fc9b7f9c0} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{959c2a76-ca0e-d281-49c4-279fc9b7f9c0}\ = "funxy.biz" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{959c2a76-ca0e-d281-49c4-279fc9b7f9c0}\InProcServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{959c2a76-ca0e-d281-49c4-279fc9b7f9c0}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\f199d1cb902e8303d2a893f23408ab29_JaffaCakes118.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{959c2a76-ca0e-d281-49c4-279fc9b7f9c0}\InProcServer32\ThreadingModel = "Apartment" regsvr32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4208 wrote to memory of 3392 4208 regsvr32.exe 84 PID 4208 wrote to memory of 3392 4208 regsvr32.exe 84 PID 4208 wrote to memory of 3392 4208 regsvr32.exe 84
Processes
-
C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\f199d1cb902e8303d2a893f23408ab29_JaffaCakes118.dll1⤵
- Suspicious use of WriteProcessMemory
PID:4208 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\f199d1cb902e8303d2a893f23408ab29_JaffaCakes118.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:3392
-