Analysis
- max time kernel
94s - max time network
142s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
03/01/2025, 00:45
General
- Target 81fb3d7407c2748969ca07dbaccf9fbb67c808a4e63b9b890ef0e85e78b81d8f.exe
- Size 129KB
- Sample250103-a4kccavrdl
- SHA256 81fb3d7407c2748969ca07dbaccf9fbb67c808a4e63b9b890ef0e85e78b81d8f
Malware Config
Signatures
- Ramnit
Ramnit is a versatile family that holds viruses, worms, and Trojans.
- Ramnit family
- Executes dropped EXE 2 IoCs
- UPX packed file 5 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Drops file in Program Files directory 3 IoCs
- System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Modifies Internet Explorer settings 1 TTPs 30 IoCs
- Suspicious behavior: EnumeratesProcesses 8 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of SetWindowsHookEx 6 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\81fb3d7407c2748969ca07dbaccf9fbb67c808a4e63b9b890ef0e85e78b81d8f.exe"C:\Users\Admin\AppData\Local\Temp\81fb3d7407c2748969ca07dbaccf9fbb67c808a4e63b9b890ef0e85e78b81d8f.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\81fb3d7407c2748969ca07dbaccf9fbb67c808a4e63b9b890ef0e85e78b81d8fSrv.exeC:\Users\Admin\AppData\Local\Temp\81fb3d7407c2748969ca07dbaccf9fbb67c808a4e63b9b890ef0e85e78b81d8fSrv.exe2⤵
- Executes dropped EXE
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Program Files (x86)\Microsoft\DesktopLayer.exe"C:\Program Files (x86)\Microsoft\DesktopLayer.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe"4⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4808 CREDAT:17410 /prefetch:25⤵
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
suggestions[1].en-US
81fb3d7407c2748969ca07dbaccf9fbb67c808a4e63b9b890ef0e85e78b81d8fSrv.exe
memory/4256-4-0x0000000000400000-0x0000000000413000-memory.dmp
memory/4256-6-0x0000000002030000-0x0000000002032000-memory.dmp
memory/4256-8-0x0000000000400000-0x0000000000413000-memory.dmp
memory/4256-7-0x0000000000400000-0x0000000000413000-memory.dmp
memory/4800-22-0x0000000000510000-0x0000000000536000-memory.dmp
memory/4800-0-0x0000000000510000-0x0000000000536000-memory.dmp
memory/4852-15-0x0000000000400000-0x0000000000413000-memory.dmp
memory/4852-18-0x0000000000400000-0x0000000000413000-memory.dmp
memory/4852-19-0x0000000000400000-0x0000000000413000-memory.dmp
memory/4852-17-0x0000000000530000-0x0000000000531000-memory.dmp