Analysis
- max time kernel
150s - max time network
122s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
19/12/2023, 12:03
General
- Target 1a2d1a94d0027d2609f971e28122aa0c.exe
- Size 322KB
- Sample231219-n8a65ahbd5
- SHA256 af2f94f56cc1e2a68689cff4a0228672858e56a9cc8b4853e1da2e2d9f7026ff
Malware Config
Extracted
-
smokeloader
-
pub5
Extracted
-
smokeloader
-
2020
-
http://gmpeople.com/upload/
-
http://mile48.com/upload/
-
http://lecanardstsornin.com/upload/
-
http://m3600.com/upload/
-
http://camasirx.com/upload/
Signatures
- SmokeLoader
Modular backdoor trojan in use since 2014.
- Deletes itself 1 IoCs
- Executes dropped EXE 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: MapViewOfSection 2 IoCs
- Suspicious use of AdjustPrivilegeToken 10 IoCs
- Suspicious use of FindShellTrayWindow 2 IoCs
- Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
-
C:\Users\Admin\AppData\Local\Temp\1a2d1a94d0027d2609f971e28122aa0c.exe"C:\Users\Admin\AppData\Local\Temp\1a2d1a94d0027d2609f971e28122aa0c.exe"1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2236 -s 3682⤵
- Program crash
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 2236 -ip 22361⤵
-
C:\Users\Admin\AppData\Roaming\wjbffsiC:\Users\Admin\AppData\Roaming\wjbffsi1⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
wjbffsi
memory/1888-14-0x0000000001A50000-0x0000000001B50000-memory.dmp
memory/1888-15-0x0000000000400000-0x00000000016C4000-memory.dmp
memory/1888-19-0x0000000000400000-0x00000000016C4000-memory.dmp
memory/2236-1-0x0000000001910000-0x0000000001A10000-memory.dmp
memory/2236-2-0x0000000003410000-0x0000000003419000-memory.dmp
memory/2236-3-0x0000000000400000-0x00000000016C4000-memory.dmp
memory/2236-7-0x0000000000400000-0x00000000016C4000-memory.dmp
memory/3500-4-0x0000000002F70000-0x0000000002F85000-memory.dmp
memory/3500-16-0x0000000001010000-0x0000000001025000-memory.dmp