Analysis
- max time kernel
150s - max time network
128s - platform
windows10-2004_x64 - resource
win10v2004-20220901-en - resource tags
- submitted
24/01/2023, 07:31
General
- Target file.exe
- Size 193KB
- Sample230124-jcc9dsbd3x
- SHA256 83fbd1b207a23df738d9cb18f94fbaa0530740c70222fc5fc283a2adea37cef1
Malware Config
Signatures
- Detects Smokeloader packer 1 IoCs
- SmokeLoader
Modular backdoor trojan in use since 2014.
- Downloads MZ/PE file
- Executes dropped EXE 1 IoCs
- Loads dropped DLL 2 IoCs
- Program crash 1 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 4 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
-
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
-
C:\Users\Admin\AppData\Local\Temp\181C.exeC:\Users\Admin\AppData\Local\Temp\181C.exe1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\rundll32.exeC:\Windows\system32\rundll32.exe C:\Users\Admin\AppData\Local\Temp\Atfaeoyeipquf.dll,start2⤵
- Loads dropped DLL
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 752 -s 5122⤵
- Program crash
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 752 -ip 7521⤵
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
181C.exe
181C.exe
Atfaeoyeipquf.dll
Atfaeoyeipquf.dll
Atfaeoyeipquf.dll
memory/752-140-0x0000000004F10000-0x00000000053F3000-memory.dmp
memory/752-139-0x0000000004B87000-0x0000000004F0A000-memory.dmp
memory/752-141-0x0000000000400000-0x0000000002F0C000-memory.dmp
memory/752-148-0x0000000000400000-0x0000000002F0C000-memory.dmp
memory/1316-132-0x0000000002CFD000-0x0000000002D10000-memory.dmp
memory/1316-135-0x0000000000400000-0x0000000002B9B000-memory.dmp
memory/1316-134-0x0000000000400000-0x0000000002B9B000-memory.dmp
memory/1316-133-0x00000000048D0000-0x00000000048D9000-memory.dmp
memory/3628-146-0x0000000002630000-0x0000000002A7F000-memory.dmp
memory/3628-147-0x0000000002630000-0x0000000002A7F000-memory.dmp
memory/3628-149-0x0000000002630000-0x0000000002A7F000-memory.dmp