Analysis
- max time kernel
151s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
19/10/2022, 08:57
General
- Target f0149c9ea100717e68500147965ca312.exe
- Size 204KB
- Sample221019-kwlkjsffgn
- SHA256 b2f68f4bc4b9e4928c1563c0cce8f0551060ea1e301194b1f27689d8fcd62f61
Malware Config
Signatures
- Detects Smokeloader packer 2 IoCs
- SmokeLoader
Modular backdoor trojan in use since 2014.
- Downloads MZ/PE file
- Executes dropped EXE 4 IoCs
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Legitimate hosting services abused for malware hosting/C2 1 TTPs
- 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 19 IoCs
- Suspicious use of AdjustPrivilegeToken 5 IoCs
- Suspicious use of WriteProcessMemory 45 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\f0149c9ea100717e68500147965ca312.exe"C:\Users\Admin\AppData\Local\Temp\f0149c9ea100717e68500147965ca312.exe"1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
-
C:\Users\Admin\AppData\Local\Temp\4A28.exeC:\Users\Admin\AppData\Local\Temp\4A28.exe1⤵
- Executes dropped EXE
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C:\Users\Admin\AppData\Local\Temp\6FA3.exeC:\Users\Admin\AppData\Local\Temp\6FA3.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4240 -s 18722⤵
- Program crash
-
-
C:\Users\Admin\AppData\Local\Temp\8649.exeC:\Users\Admin\AppData\Local\Temp\8649.exe1⤵
- Executes dropped EXE
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C:\Users\Admin\AppData\Local\Temp\8A41.exeC:\Users\Admin\AppData\Local\Temp\8A41.exe1⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe1⤵
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C:\Windows\explorer.exeC:\Windows\explorer.exe1⤵
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C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe1⤵
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C:\Windows\explorer.exeC:\Windows\explorer.exe1⤵
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C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe1⤵
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C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe1⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4240 -ip 42401⤵
-
C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe1⤵
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C:\Windows\explorer.exeC:\Windows\explorer.exe1⤵
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C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe1⤵
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
4A28.exe
4A28.exe
6FA3.exe
6FA3.exe
8649.exe
8649.exe
8A41.exe
8A41.exe
memory/932-196-0x0000000001090000-0x0000000001099000-memory.dmp
memory/932-164-0x0000000001090000-0x0000000001099000-memory.dmp
memory/932-165-0x0000000001080000-0x000000000108F000-memory.dmp
memory/1068-195-0x0000000000DE0000-0x0000000000DE7000-memory.dmp
memory/1068-163-0x0000000000DD0000-0x0000000000DDB000-memory.dmp
memory/1068-161-0x0000000000DE0000-0x0000000000DE7000-memory.dmp
memory/1184-192-0x0000000000FB0000-0x0000000000FBB000-memory.dmp
memory/1184-191-0x0000000000FC0000-0x0000000000FC8000-memory.dmp
memory/1184-203-0x0000000000FC0000-0x0000000000FC8000-memory.dmp
memory/1536-169-0x0000000000380000-0x0000000000385000-memory.dmp
memory/1536-197-0x0000000000380000-0x0000000000385000-memory.dmp
memory/1536-170-0x0000000000370000-0x0000000000379000-memory.dmp
memory/2368-198-0x0000000000D80000-0x0000000000D86000-memory.dmp
memory/2368-174-0x0000000000D80000-0x0000000000D86000-memory.dmp
memory/2368-175-0x0000000000D70000-0x0000000000D7C000-memory.dmp
memory/3484-201-0x00000000009A0000-0x00000000009A6000-memory.dmp
memory/3484-185-0x00000000009A0000-0x00000000009A6000-memory.dmp
memory/3484-186-0x0000000000990000-0x000000000099B000-memory.dmp
memory/4004-200-0x0000000000C50000-0x0000000000C55000-memory.dmp
memory/4004-183-0x0000000000C40000-0x0000000000C49000-memory.dmp
memory/4004-182-0x0000000000C50000-0x0000000000C55000-memory.dmp
memory/4200-188-0x0000000000590000-0x0000000000597000-memory.dmp
memory/4200-189-0x0000000000580000-0x000000000058D000-memory.dmp
memory/4200-202-0x0000000000590000-0x0000000000597000-memory.dmp
memory/4240-150-0x0000000005A30000-0x0000000005B3A000-memory.dmp
memory/4240-148-0x0000000005410000-0x0000000005A28000-memory.dmp
memory/4240-177-0x0000000007910000-0x0000000007E3C000-memory.dmp
memory/4240-144-0x00000000005F3000-0x0000000000629000-memory.dmp
memory/4240-145-0x0000000002230000-0x0000000002289000-memory.dmp
memory/4240-173-0x00000000005F3000-0x0000000000629000-memory.dmp
memory/4240-172-0x0000000007670000-0x000000000768E000-memory.dmp
memory/4240-168-0x0000000007450000-0x00000000074C6000-memory.dmp
memory/4240-167-0x0000000007400000-0x0000000007450000-memory.dmp
memory/4240-156-0x0000000005E80000-0x0000000005EE6000-memory.dmp
memory/4240-152-0x0000000005DE0000-0x0000000005E72000-memory.dmp
memory/4240-151-0x0000000004DE0000-0x0000000004E1C000-memory.dmp
memory/4240-194-0x0000000000400000-0x00000000005B9000-memory.dmp
memory/4240-149-0x0000000004DC0000-0x0000000004DD2000-memory.dmp
memory/4240-176-0x0000000007740000-0x0000000007902000-memory.dmp
memory/4240-147-0x0000000004E60000-0x0000000005404000-memory.dmp
memory/4240-146-0x0000000000400000-0x00000000005B9000-memory.dmp
memory/4240-193-0x00000000005F3000-0x0000000000629000-memory.dmp
memory/4484-180-0x0000000000B40000-0x0000000000B67000-memory.dmp
memory/4484-179-0x0000000000B70000-0x0000000000B92000-memory.dmp
memory/4484-199-0x0000000000B70000-0x0000000000B92000-memory.dmp
memory/5068-132-0x0000000000748000-0x0000000000759000-memory.dmp
memory/5068-137-0x0000000000400000-0x0000000000438000-memory.dmp
memory/5068-136-0x00000000006D0000-0x00000000006D9000-memory.dmp
memory/5068-135-0x0000000000748000-0x0000000000759000-memory.dmp
memory/5068-134-0x0000000000400000-0x0000000000438000-memory.dmp
memory/5068-133-0x00000000006D0000-0x00000000006D9000-memory.dmp