Analysis
- max time kernel
150s - max time network
139s - platform
windows10-2004_x64 - resource
win10v2004-20220901-en - resource tags
- submitted
20/01/2023, 23:41
General
- Target file.exe
- Size 328KB
- Sample230120-3pf1laab39
- SHA256 7ae26aa9ef75b885f6571191ca4b38bb353decce85e92fe9f659fb1d3749ab4b
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 2 IoCs
- Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
- Modifies registry class 3 IoCs
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 38 IoCs
- Suspicious use of FindShellTrayWindow 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
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C:\Users\Admin\AppData\Local\Temp\38A4.exeC:\Users\Admin\AppData\Local\Temp\38A4.exe1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exeC:\Windows\system32\rundll32.exe C:\Users\Admin\AppData\Local\Temp\Athusdiuuhasd.dll,start2⤵
- Loads dropped DLL
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4364 -s 8643⤵
- Program crash
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-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3480 -s 5082⤵
- Program crash
-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3480 -ip 34801⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 568 -p 4364 -ip 43641⤵
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
38A4.exe
38A4.exe
Athusdiuuhasd.dll
Athusdiuuhasd.dll
Athusdiuuhasd.dll
memory/3068-180-0x00000000023E0000-0x00000000023F0000-memory.dmp
memory/3068-182-0x00000000023E0000-0x00000000023F0000-memory.dmp
memory/3068-139-0x00000000023E0000-0x00000000023F0000-memory.dmp
memory/3068-140-0x00000000023E0000-0x00000000023F0000-memory.dmp
memory/3068-141-0x00000000023E0000-0x00000000023F0000-memory.dmp
memory/3068-142-0x00000000023E0000-0x00000000023F0000-memory.dmp
memory/3068-143-0x00000000023E0000-0x00000000023F0000-memory.dmp
memory/3068-144-0x00000000023E0000-0x00000000023F0000-memory.dmp
memory/3068-145-0x00000000023E0000-0x00000000023F0000-memory.dmp
memory/3068-146-0x00000000023E0000-0x00000000023F0000-memory.dmp
memory/3068-147-0x00000000023E0000-0x00000000023F0000-memory.dmp
memory/3068-148-0x00000000023E0000-0x00000000023F0000-memory.dmp
memory/3068-150-0x00000000023E0000-0x00000000023F0000-memory.dmp
memory/3068-149-0x00000000023E0000-0x00000000023F0000-memory.dmp
memory/3068-151-0x00000000023E0000-0x00000000023F0000-memory.dmp
memory/3068-152-0x00000000023E0000-0x00000000023F0000-memory.dmp
memory/3068-154-0x00000000023E0000-0x00000000023F0000-memory.dmp
memory/3068-153-0x00000000023E0000-0x00000000023F0000-memory.dmp
memory/3068-157-0x00000000028A0000-0x00000000028B0000-memory.dmp
memory/3068-156-0x0000000002410000-0x0000000002420000-memory.dmp
memory/3068-155-0x00000000023E0000-0x00000000023F0000-memory.dmp
memory/3068-200-0x00000000072C0000-0x00000000072D0000-memory.dmp
memory/3068-199-0x00000000072C0000-0x00000000072D0000-memory.dmp
memory/3068-198-0x00000000023E0000-0x00000000023F0000-memory.dmp
memory/3068-161-0x0000000002410000-0x0000000002420000-memory.dmp
memory/3068-162-0x00000000028A0000-0x00000000028B0000-memory.dmp
memory/3068-197-0x00000000023E0000-0x00000000023F0000-memory.dmp
memory/3068-196-0x00000000023E0000-0x00000000023F0000-memory.dmp
memory/3068-195-0x00000000023E0000-0x00000000023F0000-memory.dmp
memory/3068-194-0x00000000023E0000-0x00000000023F0000-memory.dmp
memory/3068-193-0x00000000072C0000-0x00000000072D0000-memory.dmp
memory/3068-192-0x00000000023E0000-0x00000000023F0000-memory.dmp
memory/3068-191-0x00000000072C0000-0x00000000072D0000-memory.dmp
memory/3068-189-0x00000000023E0000-0x00000000023F0000-memory.dmp
memory/3068-190-0x00000000023E0000-0x00000000023F0000-memory.dmp
memory/3068-187-0x00000000023E0000-0x00000000023F0000-memory.dmp
memory/3068-173-0x00000000023E0000-0x00000000023F0000-memory.dmp
memory/3068-174-0x00000000023E0000-0x00000000023F0000-memory.dmp
memory/3068-175-0x00000000023E0000-0x00000000023F0000-memory.dmp
memory/3068-176-0x00000000023E0000-0x00000000023F0000-memory.dmp
memory/3068-177-0x00000000023E0000-0x00000000023F0000-memory.dmp
memory/3068-178-0x00000000023E0000-0x00000000023F0000-memory.dmp
memory/3068-179-0x00000000023E0000-0x00000000023F0000-memory.dmp
memory/3068-181-0x00000000023E0000-0x00000000023F0000-memory.dmp
memory/3068-183-0x00000000072C0000-0x00000000072D0000-memory.dmp
memory/3068-185-0x00000000023E0000-0x00000000023F0000-memory.dmp
memory/3480-158-0x00000000026DD000-0x0000000002A6E000-memory.dmp
memory/3480-159-0x0000000002A70000-0x0000000002F60000-memory.dmp
memory/3480-160-0x0000000000400000-0x00000000008FC000-memory.dmp
memory/3480-169-0x0000000000400000-0x00000000008FC000-memory.dmp
memory/3480-163-0x0000000000400000-0x00000000008FC000-memory.dmp
memory/4364-170-0x0000000002330000-0x000000000279E000-memory.dmp
memory/4364-172-0x0000000002330000-0x000000000279E000-memory.dmp
memory/4364-168-0x0000000002330000-0x000000000279E000-memory.dmp
memory/4364-171-0x0000000002330000-0x000000000279E000-memory.dmp
memory/4988-134-0x0000000000400000-0x0000000000457000-memory.dmp
memory/4988-135-0x0000000000400000-0x0000000000457000-memory.dmp
memory/4988-133-0x00000000005E0000-0x00000000005E9000-memory.dmp
memory/4988-132-0x000000000073D000-0x0000000000752000-memory.dmp