Analysis
- max time kernel
153s - max time network
157s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
30/10/2022, 17:54
General
- Target file.exe
- Size 286KB
- Sample221030-wgv18aceh2
- SHA256 5bf5fbfdc2ccc58cbcfdc331b2fc8c8e516cd8d8f3bb348d588cdc8e3162507e
Malware Config
Signatures
- Detects Smokeloader packer 2 IoCs
- SmokeLoader
Modular backdoor trojan in use since 2014.
- Downloads MZ/PE file
- Executes dropped EXE 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Program crash 5 IoCs
- Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 8 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
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C:\Users\Admin\AppData\Local\Temp\412B.exeC:\Users\Admin\AppData\Local\Temp\412B.exe1⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2120 -s 6282⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2120 -s 9122⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2120 -s 9722⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2120 -s 9682⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2120 -s 11082⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 176 -p 2120 -ip 21201⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 2120 -ip 21201⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 2120 -ip 21201⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 2120 -ip 21201⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 2120 -ip 21201⤵
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
412B.exe
412B.exe
memory/2120-141-0x0000000003586000-0x0000000003B70000-memory.dmp
memory/2120-142-0x0000000005460000-0x0000000005A80000-memory.dmp
memory/2120-143-0x0000000000400000-0x000000000320B000-memory.dmp
memory/4932-132-0x0000000002DB3000-0x0000000002DC9000-memory.dmp
memory/4932-133-0x00000000001F0000-0x00000000001F9000-memory.dmp
memory/4932-134-0x0000000000400000-0x0000000002C36000-memory.dmp
memory/4932-135-0x0000000002DB3000-0x0000000002DC9000-memory.dmp
memory/4932-136-0x00000000001F0000-0x00000000001F9000-memory.dmp
memory/4932-137-0x0000000000400000-0x0000000002C36000-memory.dmp