Analysis
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max time kernel
150s -
max time network
128s -
platform
windows7_x64 -
resource
win7-20240704-en -
resource tags
arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system -
submitted
12/07/2024, 02:01
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
3b98a725e23c9afb014a778a083e660f_JaffaCakes118.dll
Resource
win7-20240704-en
windows7-x64
9 signatures
150 seconds
Behavioral task
behavioral2
Sample
3b98a725e23c9afb014a778a083e660f_JaffaCakes118.dll
Resource
win10v2004-20240709-en
windows10-2004-x64
9 signatures
150 seconds
General
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Target
3b98a725e23c9afb014a778a083e660f_JaffaCakes118.dll
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Size
24KB
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MD5
3b98a725e23c9afb014a778a083e660f
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SHA1
b359102a9bca20733fcd1d02bed99073d87994aa
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SHA256
42aacc994c0de73b8e4fad0731a34b24cfbff2b78426c91c95544f46c1e9cd79
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SHA512
88d0f3269ef9af2d841c53410eed84392c19dc346908108e514e995851293b7a86ef363a771f7396f92b518f96d938cf3313fb9e1739711c826004f109cc32f9
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SSDEEP
384:AlCh7iN/WEVOTI/t4//7ypGX6njwrJl/14vnFa2LumVi672XrrG225C9rwRa:yCVJuN/tIqY6n8favFasu8qrPWCEa
Score
7/10
Malware Config
Signatures
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Loads dropped DLL 5 IoCs
pid Process 2220 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\MSServer = "rundll32.exe C:\\Windows\\system32\\rqRHxurS.dll,#1" rundll32.exe -
Drops file in System32 directory 2 IoCs
description ioc Process File created C:\Windows\SysWOW64\rqRHxurS.dll rundll32.exe File opened for modification C:\Windows\SysWOW64\rqRHxurS.dll rundll32.exe -
Modifies registry class 4 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{385337E5-7AED-4AC1-A0C3-95863FE66542}\InprocServer32 rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{385337E5-7AED-4AC1-A0C3-95863FE66542}\InprocServer32\ = "C:\\Windows\\SysWow64\\rqRHxurS.dll" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{385337E5-7AED-4AC1-A0C3-95863FE66542}\InprocServer32\ThreadingModel = "Both" rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{385337E5-7AED-4AC1-A0C3-95863FE66542} rundll32.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2220 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe 2756 rundll32.exe -
Suspicious behavior: RenamesItself 1 IoCs
pid Process 2220 rundll32.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2220 rundll32.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2220 rundll32.exe -
Suspicious use of WriteProcessMemory 15 IoCs
description pid Process procid_target PID 2948 wrote to memory of 2220 2948 rundll32.exe 30 PID 2948 wrote to memory of 2220 2948 rundll32.exe 30 PID 2948 wrote to memory of 2220 2948 rundll32.exe 30 PID 2948 wrote to memory of 2220 2948 rundll32.exe 30 PID 2948 wrote to memory of 2220 2948 rundll32.exe 30 PID 2948 wrote to memory of 2220 2948 rundll32.exe 30 PID 2948 wrote to memory of 2220 2948 rundll32.exe 30 PID 2220 wrote to memory of 420 2220 rundll32.exe 5 PID 2220 wrote to memory of 2756 2220 rundll32.exe 31 PID 2220 wrote to memory of 2756 2220 rundll32.exe 31 PID 2220 wrote to memory of 2756 2220 rundll32.exe 31 PID 2220 wrote to memory of 2756 2220 rundll32.exe 31 PID 2220 wrote to memory of 2756 2220 rundll32.exe 31 PID 2220 wrote to memory of 2756 2220 rundll32.exe 31 PID 2220 wrote to memory of 2756 2220 rundll32.exe 31
Processes
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C:\Windows\system32\winlogon.exewinlogon.exe1⤵PID:420
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\3b98a725e23c9afb014a778a083e660f_JaffaCakes118.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2948 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\3b98a725e23c9afb014a778a083e660f_JaffaCakes118.dll,#12⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2220 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Windows\system32\rqRHxurS.dll,a3⤵
- Loads dropped DLL
- Adds Run key to start application
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
PID:2756
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
24KB
MD53b98a725e23c9afb014a778a083e660f
SHA1b359102a9bca20733fcd1d02bed99073d87994aa
SHA25642aacc994c0de73b8e4fad0731a34b24cfbff2b78426c91c95544f46c1e9cd79
SHA51288d0f3269ef9af2d841c53410eed84392c19dc346908108e514e995851293b7a86ef363a771f7396f92b518f96d938cf3313fb9e1739711c826004f109cc32f9