Analysis
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max time kernel
150s -
max time network
150s -
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 14:49
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
f1504d2e4716836eb9f3cec66f7c25ed_JaffaCakes118.dll
Resource
win7-20240221-en
4 signatures
150 seconds
General
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Target
f1504d2e4716836eb9f3cec66f7c25ed_JaffaCakes118.dll
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Size
148KB
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MD5
f1504d2e4716836eb9f3cec66f7c25ed
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SHA1
776fed31964c98f5e79945c66e8dbb09dcfbbdcd
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SHA256
03cfac329128097256c2d51e2f6fea202e9857e7d6eba76223242a500c3fd6cf
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SHA512
3c03769e282b5739b709ffc8d13c005622726353b1b31ec46aa7a21f35b6080a963a6e16202f8b9b603de6e4028ec67bc945dd2bce103ff9505b61f0845cd0af
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SSDEEP
3072:I5gGpYrn8OHJxbemh1zlhyHzNxZ4zuN0:aYouJheG17yHzNxgu
Malware Config
Signatures
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Installs/modifies Browser Helper Object 2 TTPs 1 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\{A6724862-9596-4C4A-A349-1223ED70ECAC} regsvr32.exe -
Modifies registry class 42 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\CLSID\ = "{A6724862-9596-4C4A-A349-1223ED70ECAC}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A6724862-9596-4C4A-A349-1223ED70ECAC}\Programmable regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A6724861-9596-4C4A-A349-1223ED70ECAC}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A6724861-9596-4C4A-A349-1223ED70ECAC}\ = "IIEHlprObj" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A6724861-9596-4C4A-A349-1223ED70ECAC}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A6724862-9596-4C4A-A349-1223ED70ECAC}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A6724868-9596-4C4A-A349-1223ED70ECAC}\1.0\HELPDIR regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj\CurVer regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A6724862-9596-4C4A-A349-1223ED70ECAC}\ProgID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A6724868-9596-4C4A-A349-1223ED70ECAC} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A6724868-9596-4C4A-A349-1223ED70ECAC}\1.0\FLAGS regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A6724868-9596-4C4A-A349-1223ED70ECAC}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\f1504d2e4716836eb9f3cec66f7c25ed_JaffaCakes118.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A6724861-9596-4C4A-A349-1223ED70ECAC} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A6724861-9596-4C4A-A349-1223ED70ECAC}\TypeLib\ = "{A6724868-9596-4C4A-A349-1223ED70ECAC}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A6724862-9596-4C4A-A349-1223ED70ECAC}\ = "IEHlprObj Class" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A6724862-9596-4C4A-A349-1223ED70ECAC}\ProgID\ = "IEHlprObj.IEHlprObj.1" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A6724862-9596-4C4A-A349-1223ED70ECAC}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\f1504d2e4716836eb9f3cec66f7c25ed_JaffaCakes118.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A6724868-9596-4C4A-A349-1223ED70ECAC}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A6724861-9596-4C4A-A349-1223ED70ECAC}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A6724861-9596-4C4A-A349-1223ED70ECAC}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\CLSID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A6724862-9596-4C4A-A349-1223ED70ECAC} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A6724868-9596-4C4A-A349-1223ED70ECAC}\1.0 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A6724868-9596-4C4A-A349-1223ED70ECAC}\1.0\ = "IEHelper 1.0 Type Library" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A6724861-9596-4C4A-A349-1223ED70ECAC} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A6724861-9596-4C4A-A349-1223ED70ECAC}\TypeLib\Version = "1.0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A6724861-9596-4C4A-A349-1223ED70ECAC}\TypeLib\ = "{A6724868-9596-4C4A-A349-1223ED70ECAC}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\ = "IEHlprObj Class" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj\ = "IEHlprObj Class" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A6724862-9596-4C4A-A349-1223ED70ECAC}\VersionIndependentProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A6724862-9596-4C4A-A349-1223ED70ECAC}\VersionIndependentProgID\ = "IEHlprObj.IEHlprObj" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A6724868-9596-4C4A-A349-1223ED70ECAC}\1.0\FLAGS\ = "0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{A6724861-9596-4C4A-A349-1223ED70ECAC}\TypeLib\Version = "1.0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A6724861-9596-4C4A-A349-1223ED70ECAC}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj\CurVer\ = "IEHlprObj.IEHlprObj.1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A6724862-9596-4C4A-A349-1223ED70ECAC}\InprocServer32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A6724868-9596-4C4A-A349-1223ED70ECAC}\1.0\0 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{A6724868-9596-4C4A-A349-1223ED70ECAC}\1.0\0\win32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A6724861-9596-4C4A-A349-1223ED70ECAC}\ = "IIEHlprObj" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{A6724861-9596-4C4A-A349-1223ED70ECAC}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3924 regsvr32.exe 3924 regsvr32.exe 3924 regsvr32.exe 3924 regsvr32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1700 wrote to memory of 3924 1700 regsvr32.exe 85 PID 1700 wrote to memory of 3924 1700 regsvr32.exe 85 PID 1700 wrote to memory of 3924 1700 regsvr32.exe 85
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\f1504d2e4716836eb9f3cec66f7c25ed_JaffaCakes118.dll1⤵
- Suspicious use of WriteProcessMemory
PID:1700 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\f1504d2e4716836eb9f3cec66f7c25ed_JaffaCakes118.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
PID:3924
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