Analysis
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max time kernel
121s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20240508-en -
resource tags
arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system -
submitted
20-06-2024 07:35
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
0412b1fa10ec9ae2326cc24d1f61d083_JaffaCakes118.dll
Resource
win7-20240508-en
3 signatures
150 seconds
General
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Target
0412b1fa10ec9ae2326cc24d1f61d083_JaffaCakes118.dll
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Size
550KB
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MD5
0412b1fa10ec9ae2326cc24d1f61d083
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SHA1
418f39e696a33af601f50741158339af568e43d1
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SHA256
9891343ea7af662cad0f266ec0f33d72274cca1adb31f19a3576c60a55dc2a7d
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SHA512
1bc00515c517936d30bfef8c7db0d581592c3589ffd2da3d4456754019efb88bcd4971193a98fa76c99751f07b74d885b4fbb8502e37e12bd5e9412ae6145629
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SSDEEP
12288:RfM40BiXWxoLhFGNz2CIZoI/Ee9shTuB:po3kHi0JcsATu
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.
Processes:
regsvr32.exedescription ioc process Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{03C12478-A0D3-4291-A535-F6D16BA08D68} regsvr32.exe -
Modifies registry class 11 IoCs
Processes:
regsvr32.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{03C12478-A0D3-4291-A535-F6D16BA08D68}\ = "ExSwfTrc" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{03C12478-A0D3-4291-A535-F6D16BA08D68}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\0412b1fa10ec9ae2326cc24d1f61d083_JaffaCakes118.dll" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{03C12478-A0D3-4291-A535-F6D16BA08D68}\InprocServer32\ThreadingModel = "Apartment" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\0412b1fa10ec9ae2326cc24d1f61d083_JaffaCakes118.XunBHoSwf regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\0412b1fa10ec9ae2326cc24d1f61d083_JaffaCakes118.XunBHoSwf\ = "ExSwfTrc" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\0412b1fa10ec9ae2326cc24d1f61d083_JaffaCakes118.XunBHoSwf\Clsid regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\0412b1fa10ec9ae2326cc24d1f61d083_JaffaCakes118.XunBHoSwf\Clsid\ = "{03C12478-A0D3-4291-A535-F6D16BA08D68}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{03C12478-A0D3-4291-A535-F6D16BA08D68} regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{03C12478-A0D3-4291-A535-F6D16BA08D68}\InprocServer32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{03C12478-A0D3-4291-A535-F6D16BA08D68}\ProgID regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{03C12478-A0D3-4291-A535-F6D16BA08D68}\ProgID\ = "0412b1fa10ec9ae2326cc24d1f61d083_JaffaCakes118.XunBHoSwf" regsvr32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
Processes:
regsvr32.exedescription pid process target process PID 1668 wrote to memory of 2260 1668 regsvr32.exe regsvr32.exe PID 1668 wrote to memory of 2260 1668 regsvr32.exe regsvr32.exe PID 1668 wrote to memory of 2260 1668 regsvr32.exe regsvr32.exe PID 1668 wrote to memory of 2260 1668 regsvr32.exe regsvr32.exe PID 1668 wrote to memory of 2260 1668 regsvr32.exe regsvr32.exe PID 1668 wrote to memory of 2260 1668 regsvr32.exe regsvr32.exe PID 1668 wrote to memory of 2260 1668 regsvr32.exe regsvr32.exe
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\0412b1fa10ec9ae2326cc24d1f61d083_JaffaCakes118.dll1⤵
- Suspicious use of WriteProcessMemory
PID:1668 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\0412b1fa10ec9ae2326cc24d1f61d083_JaffaCakes118.dll2⤵
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:2260