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Analysis
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max time kernel
150s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
23/08/2024, 06:23
Static task
static1
Behavioral task
behavioral1
Sample
bab106507c48849beaa2ad170377fdff_JaffaCakes118.dll
Resource
win7-20240705-en
Behavioral task
behavioral2
Sample
bab106507c48849beaa2ad170377fdff_JaffaCakes118.dll
Resource
win10v2004-20240802-en
General
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Target
bab106507c48849beaa2ad170377fdff_JaffaCakes118.dll
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Size
42KB
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MD5
bab106507c48849beaa2ad170377fdff
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SHA1
512503b72d2f465acf2a98fa2711322dd7019cb1
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SHA256
df14aa7b313cffa572bf4b7d0a3fb160e4de0bd29291dbf730d1fa668c79b4cc
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SHA512
1e6b0518cc2d934a9753fc5cb3f0630f426b35f4b83d1e88c3f07538177eb790ddc643958ad92a74275db070fa9f219013d91925606c7355d76b3a9b984a4d15
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SSDEEP
768:xwUa1FXxKieFI5y09EkQVmRDaZrpMRnOD5Cu482Z/nQmYFiM4gwJmFch2F:xwFXxK/FI5t9EkQVKiroytm5QFCu
Malware Config
Signatures
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Loads dropped DLL 3 IoCs
pid Process 3336 rundll32.exe 3336 rundll32.exe 2876 rundll32.exe -
resource yara_rule behavioral2/memory/3336-3-0x0000000010000000-0x0000000010014000-memory.dmp upx behavioral2/memory/3336-2-0x0000000010000000-0x0000000010014000-memory.dmp upx behavioral2/memory/3336-5-0x0000000010000000-0x0000000010014000-memory.dmp upx behavioral2/memory/3336-14-0x00000000013A0000-0x00000000013B4000-memory.dmp upx behavioral2/memory/3336-15-0x0000000010000000-0x0000000010014000-memory.dmp upx behavioral2/memory/2876-26-0x0000000010000000-0x0000000010014000-memory.dmp upx behavioral2/memory/2876-25-0x0000000010000000-0x0000000010014000-memory.dmp upx behavioral2/memory/2876-27-0x0000000010000000-0x0000000010014000-memory.dmp upx -
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\\ljJBqrOI.dll,#1" rundll32.exe -
Drops file in System32 directory 2 IoCs
description ioc Process File created C:\Windows\SysWOW64\ljJBqrOI.dll rundll32.exe File opened for modification C:\Windows\SysWOW64\ljJBqrOI.dll rundll32.exe -
System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe -
Modifies registry class 4 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{19A58582-71CB-42EA-9DDA-0960CE5BAB37} rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{19A58582-71CB-42EA-9DDA-0960CE5BAB37}\InprocServer32 rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{19A58582-71CB-42EA-9DDA-0960CE5BAB37}\InprocServer32\ = "C:\\Windows\\SysWow64\\ljJBqrOI.dll" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{19A58582-71CB-42EA-9DDA-0960CE5BAB37}\InprocServer32\ThreadingModel = "Both" rundll32.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3336 rundll32.exe 3336 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe 2876 rundll32.exe -
Suspicious behavior: RenamesItself 1 IoCs
pid Process 3336 rundll32.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3336 rundll32.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 3336 rundll32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 4120 wrote to memory of 3336 4120 rundll32.exe 84 PID 4120 wrote to memory of 3336 4120 rundll32.exe 84 PID 4120 wrote to memory of 3336 4120 rundll32.exe 84 PID 3336 wrote to memory of 612 3336 rundll32.exe 5 PID 3336 wrote to memory of 2876 3336 rundll32.exe 97 PID 3336 wrote to memory of 2876 3336 rundll32.exe 97 PID 3336 wrote to memory of 2876 3336 rundll32.exe 97
Processes
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C:\Windows\system32\winlogon.exewinlogon.exe1⤵PID:612
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\bab106507c48849beaa2ad170377fdff_JaffaCakes118.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:4120 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\bab106507c48849beaa2ad170377fdff_JaffaCakes118.dll,#12⤵
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3336 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Windows\system32\ljJBqrOI.dll,a3⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
PID:2876
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
42KB
MD5bab106507c48849beaa2ad170377fdff
SHA1512503b72d2f465acf2a98fa2711322dd7019cb1
SHA256df14aa7b313cffa572bf4b7d0a3fb160e4de0bd29291dbf730d1fa668c79b4cc
SHA5121e6b0518cc2d934a9753fc5cb3f0630f426b35f4b83d1e88c3f07538177eb790ddc643958ad92a74275db070fa9f219013d91925606c7355d76b3a9b984a4d15