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Analysis
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max time kernel
99s -
max time network
127s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
09/04/2024, 10:03
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
e9bd9041d83318edb9373f6cbbb50417_JaffaCakes118.dll
Resource
win7-20240221-en
4 signatures
150 seconds
General
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Target
e9bd9041d83318edb9373f6cbbb50417_JaffaCakes118.dll
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Size
356KB
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MD5
e9bd9041d83318edb9373f6cbbb50417
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SHA1
33632c0fe57305d03d16a126264f0c532628c270
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SHA256
3d92866db1214cc841e095a2a2215c98e111a3a500aa20991b4cfe096b249a2d
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SHA512
f173f88d5c27198144eed47fd9864db06f32a614990e2d87c33986f0655010780d9caeba78b6dc24160ae06c8c83192e46df358c8d17ec97b0dff56a90920828
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SSDEEP
6144:0RwnCV14uMFLx7IS+8SlQ/cWVZd6VRX1cfazL/hy1yxeOLDGn60x97E781:0RwnATS+8trqlcfaz7myxrDGn6008
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\{a45313ed-73b6-341b-347c-8d1b753660bf} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{a45313ed-73b6-341b-347c-8d1b753660bf}\NoExplorer = "\"\"" regsvr32.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-399997616-3400990511-967324271-1000\SOFTWARE\Microsoft\Internet Explorer\Explorer Bars\{5b1f8ef8-c52a-d468-155a-769490acc65b} regsvr32.exe Key created \REGISTRY\USER\S-1-5-21-399997616-3400990511-967324271-1000\SOFTWARE\Microsoft\Internet Explorer\Explorer Bars regsvr32.exe -
Modifies registry class 15 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{a45313ed-73b6-341b-347c-8d1b753660bf}\InProcServer32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5b1f8ef8-c52a-d468-155a-769490acc65b} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5b1f8ef8-c52a-d468-155a-769490acc65b}\InProcServer32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5b1f8ef8-c52a-d468-155a-769490acc65b}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\e9bd9041d83318edb9373f6cbbb50417_JaffaCakes118.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{a45313ed-73b6-341b-347c-8d1b753660bf} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5b1f8ef8-c52a-d468-155a-769490acc65b}\Implemented Categories regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5b1f8ef8-c52a-d468-155a-769490acc65b}\Programmable regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5b1f8ef8-c52a-d468-155a-769490acc65b}\InProcServer32\ThreadingModel = "Apartment" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{a45313ed-73b6-341b-347c-8d1b753660bf}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\e9bd9041d83318edb9373f6cbbb50417_JaffaCakes118.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{a45313ed-73b6-341b-347c-8d1b753660bf}\InProcServer32\ThreadingModel = "Apartment" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5b1f8ef8-c52a-d468-155a-769490acc65b}\ = "Search panel" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5b1f8ef8-c52a-d468-155a-769490acc65b}\Implemented Categories\{00021493-0000-0000-C000-000000000046} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{a45313ed-73b6-341b-347c-8d1b753660bf}\ = "mysidesearch search enhancer" regsvr32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1896 wrote to memory of 1712 1896 regsvr32.exe 86 PID 1896 wrote to memory of 1712 1896 regsvr32.exe 86 PID 1896 wrote to memory of 1712 1896 regsvr32.exe 86
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\e9bd9041d83318edb9373f6cbbb50417_JaffaCakes118.dll1⤵
- Suspicious use of WriteProcessMemory
PID:1896 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\e9bd9041d83318edb9373f6cbbb50417_JaffaCakes118.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies Internet Explorer settings
- Modifies registry class
PID:1712
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