Analysis
- max time kernel
179s - max time network
195s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
- submitted
07/12/2022, 19:00
General
- Target file.exe
- Size 263KB
- Sample221207-xnmtvsff86
- SHA256 fe7bc500af242e422c882a65db2b9da164536ef06877ee1a8683a4bc70a028e7
Malware Config
Signatures
- Detects Smokeloader packer 2 IoCs
- SmokeLoader
Modular backdoor trojan in use since 2014.
- Blocklisted process makes network request 4 IoCs
- Downloads MZ/PE file
- Executes dropped EXE 1 IoCs
- Loads dropped DLL 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 10 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\64EF.exeC:\Users\Admin\AppData\Local\Temp\64EF.exe1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\rundll32.exe"C:\Windows\system32\rundll32.exe" "C:\Users\Admin\AppData\Local\Temp\Eshwsfeuryqqffi.tmp",Qiysidaatietut2⤵
- Blocklisted process makes network request
- Loads dropped DLL
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1516 -s 5202⤵
- Program crash
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 1516 -ip 15161⤵
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
64EF.exe
64EF.exe
Eshwsfeuryqqffi.tmp
Eshwsfeuryqqffi.tmp
memory/1268-135-0x0000000000400000-0x000000000045E000-memory.dmp
memory/1268-132-0x0000000000713000-0x0000000000723000-memory.dmp
memory/1268-134-0x0000000000400000-0x000000000045E000-memory.dmp
memory/1268-133-0x00000000001F0000-0x00000000001F9000-memory.dmp
memory/1516-170-0x0000000000400000-0x000000000052D000-memory.dmp
memory/1516-166-0x0000000000400000-0x000000000052D000-memory.dmp
memory/1516-165-0x0000000002250000-0x0000000002370000-memory.dmp
memory/1516-164-0x00000000007C6000-0x00000000008A5000-memory.dmp
memory/2096-148-0x0000000000A80000-0x0000000000A90000-memory.dmp
memory/2096-136-0x0000000000A80000-0x0000000000A90000-memory.dmp
memory/2096-147-0x0000000000A80000-0x0000000000A90000-memory.dmp
memory/2096-145-0x0000000000A80000-0x0000000000A90000-memory.dmp
memory/2096-149-0x0000000000A80000-0x0000000000A90000-memory.dmp
memory/2096-150-0x0000000000A80000-0x0000000000A90000-memory.dmp
memory/2096-152-0x0000000000A80000-0x0000000000A90000-memory.dmp
memory/2096-151-0x0000000000A80000-0x0000000000A90000-memory.dmp
memory/2096-153-0x0000000000A80000-0x0000000000A90000-memory.dmp
memory/2096-154-0x0000000000A80000-0x0000000000A90000-memory.dmp
memory/2096-155-0x0000000007E90000-0x0000000007EA0000-memory.dmp
memory/2096-156-0x0000000007E90000-0x0000000007EA0000-memory.dmp
memory/2096-157-0x0000000007E90000-0x0000000007EA0000-memory.dmp
memory/2096-158-0x0000000007E90000-0x0000000007EA0000-memory.dmp
memory/2096-159-0x0000000007E90000-0x0000000007EA0000-memory.dmp
memory/2096-160-0x0000000007E90000-0x0000000007EA0000-memory.dmp
memory/2096-144-0x0000000000A80000-0x0000000000A90000-memory.dmp
memory/2096-143-0x0000000000A80000-0x0000000000A90000-memory.dmp
memory/2096-142-0x0000000000A80000-0x0000000000A90000-memory.dmp
memory/2096-141-0x0000000000A80000-0x0000000000A90000-memory.dmp
memory/2096-140-0x0000000000A80000-0x0000000000A90000-memory.dmp
memory/2096-139-0x0000000000B40000-0x0000000000B50000-memory.dmp
memory/2096-195-0x00000000081B0000-0x00000000081C0000-memory.dmp
memory/2096-138-0x0000000000A80000-0x0000000000A90000-memory.dmp
memory/2096-137-0x0000000000A80000-0x0000000000A90000-memory.dmp
memory/2096-146-0x0000000000A80000-0x0000000000A90000-memory.dmp
memory/2096-171-0x0000000000A80000-0x0000000000A90000-memory.dmp
memory/2096-172-0x0000000000A80000-0x0000000000A90000-memory.dmp
memory/2096-173-0x0000000000A80000-0x0000000000A90000-memory.dmp
memory/2096-175-0x0000000000A80000-0x0000000000A90000-memory.dmp
memory/2096-174-0x0000000000A80000-0x0000000000A90000-memory.dmp
memory/2096-176-0x0000000000A80000-0x0000000000A90000-memory.dmp
memory/2096-177-0x0000000000A80000-0x0000000000A90000-memory.dmp
memory/2096-178-0x0000000000A80000-0x0000000000A90000-memory.dmp
memory/2096-179-0x0000000000A80000-0x0000000000A90000-memory.dmp
memory/2096-180-0x0000000000A80000-0x0000000000A90000-memory.dmp
memory/2096-181-0x0000000000A80000-0x0000000000A90000-memory.dmp
memory/2096-182-0x0000000000A80000-0x0000000000A90000-memory.dmp
memory/2096-183-0x0000000000A80000-0x0000000000A90000-memory.dmp
memory/2096-184-0x0000000000A80000-0x0000000000A90000-memory.dmp
memory/2096-185-0x0000000000A80000-0x0000000000A90000-memory.dmp
memory/2096-186-0x0000000000A80000-0x0000000000A90000-memory.dmp
memory/2096-187-0x0000000000A80000-0x0000000000A90000-memory.dmp
memory/2096-188-0x00000000081B0000-0x00000000081C0000-memory.dmp
memory/2096-189-0x00000000081B0000-0x00000000081C0000-memory.dmp
memory/2096-190-0x00000000081B0000-0x00000000081C0000-memory.dmp
memory/2096-191-0x00000000081B0000-0x00000000081C0000-memory.dmp
memory/2096-192-0x00000000081B0000-0x00000000081C0000-memory.dmp
memory/2096-193-0x00000000081B0000-0x00000000081C0000-memory.dmp
memory/2096-194-0x00000000081B0000-0x00000000081C0000-memory.dmp