Analysis
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max time kernel
118s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20240220-en -
resource tags
arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system -
submitted
01-07-2024 08:15
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
1a8fd70058af620733614cc094c97ea5_JaffaCakes118.dll
Resource
win7-20240220-en
3 signatures
150 seconds
General
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Target
1a8fd70058af620733614cc094c97ea5_JaffaCakes118.dll
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Size
28KB
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MD5
1a8fd70058af620733614cc094c97ea5
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SHA1
3d94325d45fe88e3c091851534d9aa556b3c48f6
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SHA256
b30c81525d963dd894b5316b6e2b1ffb7a0669ddbdc0cbdd3f46e03b7ed23122
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SHA512
a4e5e39876b7b8022644295b9ad0bb1691e420ef59704c40074a0a24e5caf462eff9251b78a967bb2f19e3fb7609300c07d13f802c7ba71c230a55216b5f0f72
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SSDEEP
384:3pfe2Ix2htQk67+dwhXbQwFprZuW6xLBTGoa:3E2Ietnc+darQmp9qjba
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.
Processes:
regsvr32.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{598C33CB-510E-4857-9801-78F1D892879C} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{598C33CB-510E-4857-9801-78F1D892879C}\ = "WEB·´²¡¶¾±£»¤" regsvr32.exe -
Modifies registry class 46 IoCs
Processes:
regsvr32.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DB621D78-D4DF-4FD3-AB8C-A55585C1BD1D}\1.0\ = "ClickDll 1.0 Type Library" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DB621D78-D4DF-4FD3-AB8C-A55585C1BD1D}\1.0\0\win32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DB621D78-D4DF-4FD3-AB8C-A55585C1BD1D}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\ClickDll.IEDll\CLSID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\ClickDll.IEDll\CLSID\ = "{598C33CB-510E-4857-9801-78F1D892879C}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{598C33CB-510E-4857-9801-78F1D892879C}\ProgID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{598C33CB-510E-4857-9801-78F1D892879C}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{598C33CB-510E-4857-9801-78F1D892879C}\TypeLib\ = "{DB621D78-D4DF-4FD3-AB8C-A55585C1BD1D}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{BB7F455B-142A-4EA9-8EB1-53155856C327}\TypeLib regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{598C33CB-510E-4857-9801-78F1D892879C}\VersionIndependentProgID regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{BB7F455B-142A-4EA9-8EB1-53155856C327} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DB621D78-D4DF-4FD3-AB8C-A55585C1BD1D}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1a8fd70058af620733614cc094c97ea5_JaffaCakes118.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\ClickDll.IEDll regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{598C33CB-510E-4857-9801-78F1D892879C}\ = "WEB·´²¡¶¾±£»¤" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{598C33CB-510E-4857-9801-78F1D892879C}\InprocServer32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DB621D78-D4DF-4FD3-AB8C-A55585C1BD1D}\1.0 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DB621D78-D4DF-4FD3-AB8C-A55585C1BD1D}\1.0\FLAGS\ = "0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\ClickDll.IEDll.1 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{598C33CB-510E-4857-9801-78F1D892879C}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1a8fd70058af620733614cc094c97ea5_JaffaCakes118.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{BB7F455B-142A-4EA9-8EB1-53155856C327}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\ClickDll.IEDll.1\CLSID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{598C33CB-510E-4857-9801-78F1D892879C}\ProgID\ = "ClickDll.IEDll.1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{598C33CB-510E-4857-9801-78F1D892879C}\Programmable regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DB621D78-D4DF-4FD3-AB8C-A55585C1BD1D} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{BB7F455B-142A-4EA9-8EB1-53155856C327}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{BB7F455B-142A-4EA9-8EB1-53155856C327}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{BB7F455B-142A-4EA9-8EB1-53155856C327}\TypeLib\ = "{DB621D78-D4DF-4FD3-AB8C-A55585C1BD1D}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{BB7F455B-142A-4EA9-8EB1-53155856C327}\ = "IIEDll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{598C33CB-510E-4857-9801-78F1D892879C}\VersionIndependentProgID\ = "ClickDll.IEDll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DB621D78-D4DF-4FD3-AB8C-A55585C1BD1D}\1.0\FLAGS regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DB621D78-D4DF-4FD3-AB8C-A55585C1BD1D}\1.0\HELPDIR regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{BB7F455B-142A-4EA9-8EB1-53155856C327}\ = "IIEDll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{BB7F455B-142A-4EA9-8EB1-53155856C327}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{BB7F455B-142A-4EA9-8EB1-53155856C327}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{BB7F455B-142A-4EA9-8EB1-53155856C327}\TypeLib\Version = "1.0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{BB7F455B-142A-4EA9-8EB1-53155856C327}\TypeLib\ = "{DB621D78-D4DF-4FD3-AB8C-A55585C1BD1D}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{BB7F455B-142A-4EA9-8EB1-53155856C327}\TypeLib\Version = "1.0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\ClickDll.IEDll.1\ = "WEB·´²¡¶¾±£»¤" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\ClickDll.IEDll.1\CLSID\ = "{598C33CB-510E-4857-9801-78F1D892879C}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\ClickDll.IEDll\ = "WEB·´²¡¶¾±£»¤" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{DB621D78-D4DF-4FD3-AB8C-A55585C1BD1D}\1.0\0 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{BB7F455B-142A-4EA9-8EB1-53155856C327} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\ClickDll.IEDll\CurVer regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\ClickDll.IEDll\CurVer\ = "ClickDll.IEDll.1" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{598C33CB-510E-4857-9801-78F1D892879C} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{598C33CB-510E-4857-9801-78F1D892879C}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
Processes:
regsvr32.exedescription pid process target process PID 2316 wrote to memory of 2800 2316 regsvr32.exe regsvr32.exe PID 2316 wrote to memory of 2800 2316 regsvr32.exe regsvr32.exe PID 2316 wrote to memory of 2800 2316 regsvr32.exe regsvr32.exe PID 2316 wrote to memory of 2800 2316 regsvr32.exe regsvr32.exe PID 2316 wrote to memory of 2800 2316 regsvr32.exe regsvr32.exe PID 2316 wrote to memory of 2800 2316 regsvr32.exe regsvr32.exe PID 2316 wrote to memory of 2800 2316 regsvr32.exe regsvr32.exe
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\1a8fd70058af620733614cc094c97ea5_JaffaCakes118.dll1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\1a8fd70058af620733614cc094c97ea5_JaffaCakes118.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class