Analysis
- max time kernel
150s - max time network
86s - platform
windows10-2004_x64 - resource
win10v2004-20231201-en - resource tags
- submitted
02/12/2023, 16:44
General
- Target b9dfccbd557a3318a6d0e672ca155da0.exe
- Size 306KB
- Sample231202-t8talaea5w
- SHA256 3e2951ec613371b90746d93b2effdf16d1d7b743498f3040886fa40cd782e55c
Score
10/10
Malware Config
Extracted
Family
-
smokeloader
Botnet
-
up3
Extracted
Family
-
smokeloader
Version
-
2020
C2
-
http://host-file-host6.com/
-
http://host-host-file8.com/
rc4.i32
rc4.i32
Signatures
- SmokeLoader
Modular backdoor trojan in use since 2014.
- Deletes itself 1 IoCs
- Suspicious use of SetThreadContext 1 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 2 IoCs
- Suspicious use of UnmapMainImage 1 IoCs
- Suspicious use of WriteProcessMemory 6 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\b9dfccbd557a3318a6d0e672ca155da0.exe"C:\Users\Admin\AppData\Local\Temp\b9dfccbd557a3318a6d0e672ca155da0.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\b9dfccbd557a3318a6d0e672ca155da0.exe"C:\Users\Admin\AppData\Local\Temp\b9dfccbd557a3318a6d0e672ca155da0.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 944 -s 3283⤵
- Program crash
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 944 -ip 9441⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
memory/944-3-0x0000000000400000-0x0000000000409000-memory.dmp
memory/944-4-0x0000000000400000-0x0000000000409000-memory.dmp
memory/944-8-0x0000000000400000-0x0000000000409000-memory.dmp
memory/1952-1-0x0000000002D40000-0x0000000002E40000-memory.dmp
memory/1952-2-0x0000000002C60000-0x0000000002C69000-memory.dmp
memory/3496-5-0x0000000002780000-0x0000000002796000-memory.dmp