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Analysis
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max time kernel
149s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
21/01/2025, 21:30
Static task
static1
Behavioral task
behavioral1
Sample
JaffaCakes118_07a3182e5b7a23fc280812f3626fc813.dll
Resource
win7-20240903-en
General
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Target
JaffaCakes118_07a3182e5b7a23fc280812f3626fc813.dll
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Size
754KB
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MD5
07a3182e5b7a23fc280812f3626fc813
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SHA1
94131dd8f73672cb92bcc384bbd897f131fa3a96
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SHA256
3fa4b48aa56ba0eb7476b445a2c333f13ae0080f39d4803f4c34a95ca131e320
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SHA512
27dca3d3418a0ae92432c03c62873460b0e32a762bd1e5f195411d51c7200649e58797a465f1719ac9e65d061bbf04feff4fd1126fdf4d6deada78344a83225a
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SSDEEP
12288:4NIyZN4+Wv4PLq6Okrh9ZN/hs9DsdzvCIKFdq3VPIdrV:49TPmirh9Zdh6MvCbdq3arV
Malware Config
Signatures
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Ramnit family
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Executes dropped EXE 1 IoCs
pid Process 3592 rundll32mgr.exe -
Loads dropped DLL 1 IoCs
pid Process 3592 rundll32mgr.exe -
Drops file in System32 directory 1 IoCs
description ioc Process File created C:\Windows\SysWOW64\rundll32mgr.exe rundll32.exe -
resource yara_rule behavioral2/memory/3592-7-0x0000000000400000-0x000000000046B000-memory.dmp upx -
Program crash 2 IoCs
pid pid_target Process procid_target 1396 3004 WerFault.exe 82 4736 3592 WerFault.exe 83 -
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 rundll32mgr.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 3156 wrote to memory of 3004 3156 rundll32.exe 82 PID 3156 wrote to memory of 3004 3156 rundll32.exe 82 PID 3156 wrote to memory of 3004 3156 rundll32.exe 82 PID 3004 wrote to memory of 3592 3004 rundll32.exe 83 PID 3004 wrote to memory of 3592 3004 rundll32.exe 83 PID 3004 wrote to memory of 3592 3004 rundll32.exe 83
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_07a3182e5b7a23fc280812f3626fc813.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:3156 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_07a3182e5b7a23fc280812f3626fc813.dll,#12⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3004 -
C:\Windows\SysWOW64\rundll32mgr.exeC:\Windows\SysWOW64\rundll32mgr.exe3⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
PID:3592 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3592 -s 101884⤵
- Program crash
PID:4736
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3004 -s 6083⤵
- Program crash
PID:1396
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3004 -ip 30041⤵PID:3776
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 3592 -ip 35921⤵PID:1200
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.6MB
MD54f3387277ccbd6d1f21ac5c07fe4ca68
SHA1e16506f662dc92023bf82def1d621497c8ab5890
SHA256767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac
SHA5129da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219
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Filesize
169KB
MD5335f0aeb047ac7782090828b5d4fa10e
SHA173355b1c843bec7be94b0a39efb5ff3b1b4ee547
SHA2566df4c841c30d414cfee93573963036abfd669627081705c6a0d9e65fd6846f53
SHA512635d1e473a0f2cebad020f80e211b55bcb12742ddde1e65db182b077c8873f639b491ab8d11a6781095cf16729e03f93696514de72b58efad8157fad3ff399f1