Analysis
- max time kernel
150s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
- submitted
31/05/2023, 07:57
General
- Target 1313175470e5c024f9d74e38a4c9ceb2.exe
- Size 248KB
- Sample230531-js9yasdf39
- SHA256 0f894e06e5216382a7e3dbe449de7900fdd0b489d7e836eb007cfe59c0f41ae0
Malware Config
Extracted
-
smokeloader
-
pub5
Extracted
-
smokeloader
-
2022
-
http://aapu.at/tmp/
-
http://poudineh.com/tmp/
-
http://firsttrusteedrx.ru/tmp/
-
http://kingpirate.ru/tmp/
Signatures
- SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
- Downloads MZ/PE file
- Executes dropped EXE 1 IoCs
- Accesses Microsoft Outlook profiles 1 TTPs 6 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.
- Checks processor information in registry 2 TTPs 2 IoCs
Processor 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 WriteProcessMemory 7 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.
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\1313175470e5c024f9d74e38a4c9ceb2.exe"C:\Users\Admin\AppData\Local\Temp\1313175470e5c024f9d74e38a4c9ceb2.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
-
-
C:\Users\Admin\AppData\Local\Temp\976.exeC:\Users\Admin\AppData\Local\Temp\976.exe2⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3384 -s 9643⤵
- Program crash
-
-
-
C:\Windows\system32\certreq.exe"C:\Windows\system32\certreq.exe"2⤵
- Accesses Microsoft Outlook profiles
- Checks processor information in registry
- outlook_office_path
- outlook_win_path
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 3384 -ip 33841⤵
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
976.exe
976.exe
memory/1212-173-0x00007FF4DCB70000-0x00007FF4DCC9D000-memory.dmp
memory/1212-171-0x00007FF4DCB70000-0x00007FF4DCC9D000-memory.dmp
memory/1212-167-0x00007FF4DCB70000-0x00007FF4DCC9D000-memory.dmp
memory/1212-175-0x00007FF4DCB70000-0x00007FF4DCC9D000-memory.dmp
memory/1212-166-0x00007FF4DCB70000-0x00007FF4DCC9D000-memory.dmp
memory/1212-174-0x00007FF4DCB70000-0x00007FF4DCC9D000-memory.dmp
memory/1212-168-0x00007FF4DCB70000-0x00007FF4DCC9D000-memory.dmp
memory/1212-151-0x000001DF805C0000-0x000001DF805C3000-memory.dmp
memory/1212-172-0x00007FF4DCB70000-0x00007FF4DCC9D000-memory.dmp
memory/1212-165-0x00007FF4DCB70000-0x00007FF4DCC9D000-memory.dmp
memory/1212-170-0x00007FF4DCB70000-0x00007FF4DCC9D000-memory.dmp
memory/1212-162-0x000001DF805C0000-0x000001DF805C3000-memory.dmp
memory/1212-163-0x000001DF80650000-0x000001DF80657000-memory.dmp
memory/1212-164-0x00007FF4DCB70000-0x00007FF4DCC9D000-memory.dmp
memory/3180-136-0x0000000000400000-0x0000000000684000-memory.dmp
memory/3180-134-0x00000000023C0000-0x00000000023C9000-memory.dmp
memory/3216-135-0x00000000026D0000-0x00000000026E6000-memory.dmp
memory/3384-148-0x0000000000880000-0x0000000000887000-memory.dmp
memory/3384-160-0x0000000000400000-0x00000000006FE000-memory.dmp
memory/3384-158-0x0000000002670000-0x00000000026A6000-memory.dmp
memory/3384-152-0x0000000002670000-0x00000000026A6000-memory.dmp
memory/3384-150-0x0000000002720000-0x0000000002B20000-memory.dmp
memory/3384-149-0x0000000002720000-0x0000000002B20000-memory.dmp
memory/3384-147-0x0000000002360000-0x00000000023D0000-memory.dmp