Analysis
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max time kernel
121s -
max time network
125s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
15-04-2024 13:54
Behavioral task
behavioral1
Sample
f137a1e8bc73f5b49301ca321de1ae56_JaffaCakes118.dll
Resource
win7-20240221-en
4 signatures
150 seconds
General
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Target
f137a1e8bc73f5b49301ca321de1ae56_JaffaCakes118.dll
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Size
19KB
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MD5
f137a1e8bc73f5b49301ca321de1ae56
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SHA1
35874795821d496284ce97533c2b3a17bb5aa6d5
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SHA256
89e80797875190dfbba60807dd8eb69070ce9201e68bd97522a36ff95560ec7e
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SHA512
ef85a7c6663b7b89567c2e6bb55ad7b6a6ff8c6dd571b6de8392e2076b72ea47524caeb2f51247f7946ffe25e5f8ca0db7bf2691fb8cff8d37a7d22832eaf7e7
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SSDEEP
384:MuyLktPH4nxjsLzRQmu+/kGgzcTW/YjU6NZIIF4w/aIk0ivhjzxp:MuP5zKmXkfglNZIIqbzzxp
Malware Config
Signatures
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resource yara_rule behavioral1/memory/2992-0-0x0000000010000000-0x0000000010010000-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\{2318C2B1-4965-11d4-9B18-009027A5CD4F} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{2318C2B1-4965-11d4-9B18-009027A5CD4F}\ = "Google Toolbar Helper" regsvr32.exe -
Modifies registry class 46 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Googletoolbar.Google\CLSID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{ED894DB9-2DC6-4CA5-8FDF-86763C582564} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{ED894DB9-2DC6-4CA5-8FDF-86763C582564}\1.0 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{ED894DB9-2DC6-4CA5-8FDF-86763C582564}\1.0\0 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{ED894DB9-2DC6-4CA5-8FDF-86763C582564}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{DA4DEAB2-9BAE-41DE-83EA-0916180F8AE4}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Googletoolbar.Google.1 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Googletoolbar.Google.1\ = "&Google" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{2318C2B1-4965-11d4-9B18-009027A5CD4F} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{DA4DEAB2-9BAE-41DE-83EA-0916180F8AE4}\ = "IGoogle" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DA4DEAB2-9BAE-41DE-83EA-0916180F8AE4}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{2318C2B1-4965-11d4-9B18-009027A5CD4F}\TypeLib\ = "{ED894DB9-2DC6-4CA5-8FDF-86763C582564}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{ED894DB9-2DC6-4CA5-8FDF-86763C582564}\1.0\0\win32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Googletoolbar.Google\CurVer\ = "Googletoolbar.Google.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{2318C2B1-4965-11d4-9B18-009027A5CD4F}\ = "&Google" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{2318C2B1-4965-11d4-9B18-009027A5CD4F}\VersionIndependentProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{2318C2B1-4965-11d4-9B18-009027A5CD4F}\VersionIndependentProgID\ = "Googletoolbar.Google" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{2318C2B1-4965-11d4-9B18-009027A5CD4F}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\f137a1e8bc73f5b49301ca321de1ae56_JaffaCakes118.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{2318C2B1-4965-11d4-9B18-009027A5CD4F}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{DA4DEAB2-9BAE-41DE-83EA-0916180F8AE4}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{DA4DEAB2-9BAE-41DE-83EA-0916180F8AE4}\TypeLib\ = "{ED894DB9-2DC6-4CA5-8FDF-86763C582564}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Googletoolbar.Google.1\CLSID\ = "{2318C2B1-4965-11d4-9B18-009027A5CD4F}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{2318C2B1-4965-11d4-9B18-009027A5CD4F}\ProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{ED894DB9-2DC6-4CA5-8FDF-86763C582564}\1.0\FLAGS\ = "0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DA4DEAB2-9BAE-41DE-83EA-0916180F8AE4} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DA4DEAB2-9BAE-41DE-83EA-0916180F8AE4}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Googletoolbar.Google.1\CLSID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{2318C2B1-4965-11d4-9B18-009027A5CD4F}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Googletoolbar.Google\CurVer regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{DA4DEAB2-9BAE-41DE-83EA-0916180F8AE4} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{DA4DEAB2-9BAE-41DE-83EA-0916180F8AE4}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DA4DEAB2-9BAE-41DE-83EA-0916180F8AE4}\ = "IGoogle" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DA4DEAB2-9BAE-41DE-83EA-0916180F8AE4}\TypeLib\ = "{ED894DB9-2DC6-4CA5-8FDF-86763C582564}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Googletoolbar.Google regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{ED894DB9-2DC6-4CA5-8FDF-86763C582564}\1.0\ = "googletoolbar 1.0 Type Library" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{ED894DB9-2DC6-4CA5-8FDF-86763C582564}\1.0\FLAGS regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{ED894DB9-2DC6-4CA5-8FDF-86763C582564}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\f137a1e8bc73f5b49301ca321de1ae56_JaffaCakes118.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{DA4DEAB2-9BAE-41DE-83EA-0916180F8AE4}\TypeLib\Version = "1.0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DA4DEAB2-9BAE-41DE-83EA-0916180F8AE4}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DA4DEAB2-9BAE-41DE-83EA-0916180F8AE4}\TypeLib\Version = "1.0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Googletoolbar.Google\ = "&Google" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Googletoolbar.Google\CLSID\ = "{2318C2B1-4965-11d4-9B18-009027A5CD4F}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{2318C2B1-4965-11d4-9B18-009027A5CD4F}\ProgID\ = "Googletoolbar.Google.1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{2318C2B1-4965-11d4-9B18-009027A5CD4F}\Programmable regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{2318C2B1-4965-11d4-9B18-009027A5CD4F}\InprocServer32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{ED894DB9-2DC6-4CA5-8FDF-86763C582564}\1.0\HELPDIR regsvr32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2944 wrote to memory of 2992 2944 regsvr32.exe 28 PID 2944 wrote to memory of 2992 2944 regsvr32.exe 28 PID 2944 wrote to memory of 2992 2944 regsvr32.exe 28 PID 2944 wrote to memory of 2992 2944 regsvr32.exe 28 PID 2944 wrote to memory of 2992 2944 regsvr32.exe 28 PID 2944 wrote to memory of 2992 2944 regsvr32.exe 28 PID 2944 wrote to memory of 2992 2944 regsvr32.exe 28
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\f137a1e8bc73f5b49301ca321de1ae56_JaffaCakes118.dll1⤵
- Suspicious use of WriteProcessMemory
PID:2944 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\f137a1e8bc73f5b49301ca321de1ae56_JaffaCakes118.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:2992
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