Analysis
- max time kernel
149s - max time network
155s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
26/03/2024, 18:15
General
- Target dfcb7dca265c176b8d1225d8f83f59f0.dll
- Size 371KB
- Sample240326-wweb1sgf67
- SHA256 ad05a61d0fa76ed55fcf471f012b19e67697c9b9987d83047eedd2a0243bcbd9
Malware Config
Signatures
- Ramnit
Ramnit is a versatile family that holds viruses, worms, and Trojans.
- Executes dropped EXE 1 IoCs
- Loads dropped DLL 1 IoCs
- UPX packed file 9 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Drops file in System32 directory 1 IoCs
- Program crash 2 IoCs
- Suspicious use of UnmapMainImage 1 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\dfcb7dca265c176b8d1225d8f83f59f0.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\dfcb7dca265c176b8d1225d8f83f59f0.dll,#12⤵
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32mgr.exeC:\Windows\SysWOW64\rundll32mgr.exe3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of UnmapMainImage
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1408 -s 4284⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 888 -s 6883⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 888 -ip 8881⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 1408 -ip 14081⤵
Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
~TM5DEF.tmp
rundll32mgr.exe
memory/888-0-0x0000000010000000-0x0000000010176000-memory.dmp
memory/888-21-0x0000000010000000-0x0000000010176000-memory.dmp
memory/1408-9-0x00000000008B0000-0x00000000008B1000-memory.dmp
memory/1408-10-0x0000000000400000-0x000000000042A000-memory.dmp
memory/1408-8-0x0000000000400000-0x000000000042A000-memory.dmp
memory/1408-13-0x0000000000400000-0x000000000042A000-memory.dmp
memory/1408-14-0x0000000000400000-0x000000000042A000-memory.dmp
memory/1408-15-0x0000000000400000-0x000000000042A000-memory.dmp
memory/1408-7-0x0000000000400000-0x000000000042A000-memory.dmp
memory/1408-19-0x0000000077B12000-0x0000000077B14000-memory.dmp
memory/1408-20-0x0000000077B12000-0x0000000077B13000-memory.dmp
memory/1408-5-0x0000000000400000-0x000000000042A000-memory.dmp