Analysis
- max time kernel
150s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
12/12/2022, 12:38
General
- Target file.exe
- Size 260KB
- Sample221212-pt2wzabc96
- SHA256 ea9b50f71a7bf3ef4cb7324dd3ca0c90c2b1c43b5a2d270e9e1608d779eed61f
Malware Config
Signatures
- Detects Smokeloader packer 1 IoCs
- SmokeLoader
Modular backdoor trojan in use since 2014.
- Blocklisted process makes network request 3 IoCs
- Downloads MZ/PE file
- Executes dropped EXE 2 IoCs
- Loads dropped DLL 1 IoCs
- Program crash 1 IoCs
- Checks SCSI registry key(s) 3 TTPs 6 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 2 IoCs
- Suspicious use of AdjustPrivilegeToken 2 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\21D0.exeC:\Users\Admin\AppData\Local\Temp\21D0.exe1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\rundll32.exe"C:\Windows\system32\rundll32.exe" "C:\Users\Admin\AppData\Local\Temp\Aoypeqerquuwr.tmp",Isdhedfoeda2⤵
- Blocklisted process makes network request
- Loads dropped DLL
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1296 -s 5282⤵
- Program crash
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1296 -ip 12961⤵
-
C:\Users\Admin\AppData\Roaming\ivffvesC:\Users\Admin\AppData\Roaming\ivffves1⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
21D0.exe
21D0.exe
Aoypeqerquuwr.tmp
Aoypeqerquuwr.tmp
ivffves
ivffves
memory/1296-139-0x00000000020E3000-0x00000000021C5000-memory.dmp
memory/1296-140-0x00000000022D0000-0x00000000023F3000-memory.dmp
memory/1296-141-0x0000000000400000-0x0000000000530000-memory.dmp
memory/1296-145-0x0000000000400000-0x0000000000530000-memory.dmp
memory/2352-132-0x00000000007A9000-0x00000000007BA000-memory.dmp
memory/2352-135-0x0000000000400000-0x000000000045E000-memory.dmp
memory/2352-133-0x0000000002050000-0x0000000002059000-memory.dmp
memory/2352-134-0x0000000000400000-0x000000000045E000-memory.dmp
memory/2592-148-0x00000000004F8000-0x0000000000508000-memory.dmp
memory/2592-149-0x0000000000400000-0x000000000045E000-memory.dmp
memory/2592-150-0x0000000000400000-0x000000000045E000-memory.dmp