Analysis
- max time kernel
85s - max time network
133s - platform
windows10-2004_x64 - resource
win10v2004-en-20220113 - submitted
11/03/2022, 17:41
General
- Target 1c985bc401029da639588b8f934f106c.exe
- Size 288KB
- Sample220311-v9fassdfbj
- SHA256 2f05e4144786baf736f3562d07398da860f68df5d263dabaaaea623ba13c515a
Malware Config
Extracted
-
smokeloader
-
2020
-
http://coralee.at/upload/
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http://ducvietcao.com/upload/
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http://biz-acc.ru/upload/
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http://toimap.com/upload/
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http://bbb7d.com/upload/
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http://piratia-life.ru/upload/
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http://curvreport.com/upload/
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http://viagratos.com/upload/
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http://mordo.ru/upload/
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http://pkodev.net/upload/
Signatures
- SmokeLoader
Modular backdoor trojan in use since 2014.
- suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile
suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile
- Blocklisted process makes network request 1 IoCs
- Downloads MZ/PE file
- Executes dropped EXE 2 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.
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Program crash 5 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 23 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 15 IoCs
- Suspicious use of WriteProcessMemory 29 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\1c985bc401029da639588b8f934f106c.exe"C:\Users\Admin\AppData\Local\Temp\1c985bc401029da639588b8f934f106c.exe"1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
-
C:\Users\Admin\AppData\Local\Temp\E452.exeC:\Users\Admin\AppData\Local\Temp\E452.exe1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\rundll32.exe"C:\Windows\syswow64\rundll32.exe" "C:\Windows\syswow64\shell32.dll",#612⤵
- Blocklisted process makes network request
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 5060 -s 6122⤵
- Program crash
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 5060 -s 9082⤵
- Program crash
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 5060 -s 9122⤵
- Program crash
-
-
C:\Windows\SysWOW64\rundll32.exe"C:\Windows\syswow64\rundll32.exe" "C:\Windows\syswow64\shell32.dll",#612⤵
-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 5060 -s 10082⤵
- Program crash
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 188 -p 5060 -ip 50601⤵
-
C:\Users\Admin\AppData\Local\Temp\1F1A.exeC:\Users\Admin\AppData\Local\Temp\1F1A.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3964 -s 11642⤵
- Program crash
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 3964 -ip 39641⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 5060 -ip 50601⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 5060 -ip 50601⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 5060 -ip 50601⤵
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/960-204-0x0000000004580000-0x0000000004581000-memory.dmp
memory/960-200-0x0000000003780000-0x00000000041C3000-memory.dmp
memory/960-198-0x0000000001250000-0x0000000001B73000-memory.dmp
memory/960-207-0x00000000042DF000-0x00000000042E0000-memory.dmp
memory/960-199-0x0000000077CF0000-0x0000000077E93000-memory.dmp
memory/960-208-0x000000000434E000-0x000000000434F000-memory.dmp
memory/960-201-0x00000000044C0000-0x00000000044C1000-memory.dmp
memory/960-206-0x0000000004240000-0x0000000004380000-memory.dmp
memory/960-203-0x0000000003780000-0x00000000041C3000-memory.dmp
memory/960-202-0x0000000001DD0000-0x0000000001DD1000-memory.dmp
memory/960-205-0x0000000004240000-0x0000000004380000-memory.dmp
memory/1768-131-0x0000000000878000-0x0000000000889000-memory.dmp
memory/1768-133-0x0000000000400000-0x00000000004EE000-memory.dmp
memory/1768-132-0x0000000000630000-0x0000000000639000-memory.dmp
memory/1768-130-0x0000000000878000-0x0000000000889000-memory.dmp
memory/2204-144-0x00000000001B0000-0x00000000001B4000-memory.dmp
memory/2204-151-0x0000000000420000-0x0000000000424000-memory.dmp
memory/2204-150-0x0000000000410000-0x0000000000414000-memory.dmp
memory/2204-148-0x00000000001F0000-0x00000000001F4000-memory.dmp
memory/2204-147-0x00000000001E0000-0x00000000001E4000-memory.dmp
memory/2204-149-0x0000000000400000-0x0000000000404000-memory.dmp
memory/2204-146-0x00000000001D0000-0x00000000001D4000-memory.dmp
memory/2204-145-0x00000000001C0000-0x00000000001C4000-memory.dmp
memory/2204-143-0x0000000076020000-0x00000000761C0000-memory.dmp
memory/2204-142-0x0000000077CF0000-0x0000000077E93000-memory.dmp
memory/2204-141-0x00000000001A0000-0x00000000001A4000-memory.dmp
memory/3024-134-0x0000000001420000-0x0000000001436000-memory.dmp
memory/3964-171-0x0000000006000000-0x0000000006066000-memory.dmp
memory/3964-166-0x0000000004D00000-0x0000000004D3C000-memory.dmp
memory/3964-167-0x0000000004D54000-0x0000000004D56000-memory.dmp
memory/3964-168-0x0000000005D00000-0x0000000005D92000-memory.dmp
memory/3964-169-0x0000000005DA0000-0x0000000005E16000-memory.dmp
memory/3964-170-0x0000000005FC0000-0x0000000005FDE000-memory.dmp
memory/3964-165-0x0000000005930000-0x0000000005A3A000-memory.dmp
memory/3964-172-0x0000000006820000-0x00000000069E2000-memory.dmp
memory/3964-173-0x0000000006A40000-0x0000000006F6C000-memory.dmp
memory/3964-164-0x0000000004D53000-0x0000000004D54000-memory.dmp
memory/3964-154-0x000000000060D000-0x0000000000639000-memory.dmp
memory/3964-155-0x000000000060D000-0x0000000000639000-memory.dmp
memory/3964-156-0x00000000021D0000-0x0000000002209000-memory.dmp
memory/3964-157-0x0000000000400000-0x0000000000490000-memory.dmp
memory/3964-158-0x0000000004D60000-0x0000000005304000-memory.dmp
memory/3964-159-0x0000000073950000-0x0000000074100000-memory.dmp
memory/3964-160-0x0000000005310000-0x0000000005928000-memory.dmp
memory/3964-163-0x0000000004D52000-0x0000000004D53000-memory.dmp
memory/3964-162-0x0000000004CC0000-0x0000000004CD2000-memory.dmp
memory/3964-161-0x0000000004D50000-0x0000000004D51000-memory.dmp
memory/5060-186-0x0000000003E90000-0x0000000003E91000-memory.dmp
memory/5060-196-0x0000000003ABF000-0x0000000003AC0000-memory.dmp
memory/5060-184-0x0000000003A20000-0x0000000003B60000-memory.dmp
memory/5060-182-0x0000000003A20000-0x0000000003B60000-memory.dmp
memory/5060-185-0x0000000003A20000-0x0000000003B60000-memory.dmp
memory/5060-187-0x0000000003A20000-0x0000000003B60000-memory.dmp
memory/5060-188-0x0000000077CF0000-0x0000000077E93000-memory.dmp
memory/5060-189-0x0000000003A20000-0x0000000003B60000-memory.dmp
memory/5060-190-0x0000000077CF0000-0x0000000077E93000-memory.dmp
memory/5060-191-0x0000000077CF0000-0x0000000077E93000-memory.dmp
memory/5060-193-0x0000000003A20000-0x0000000003B60000-memory.dmp
memory/5060-194-0x0000000077CF0000-0x0000000077E93000-memory.dmp
memory/5060-195-0x0000000003A20000-0x0000000003B60000-memory.dmp
memory/5060-183-0x0000000003E50000-0x0000000003E51000-memory.dmp
memory/5060-192-0x0000000004140000-0x0000000004141000-memory.dmp
memory/5060-181-0x0000000003A20000-0x0000000003B60000-memory.dmp
memory/5060-180-0x0000000003E40000-0x0000000003E41000-memory.dmp
memory/5060-179-0x0000000002DA0000-0x00000000037E3000-memory.dmp
memory/5060-178-0x0000000003E30000-0x0000000003E31000-memory.dmp
memory/5060-177-0x0000000002DA0000-0x00000000037E3000-memory.dmp
memory/5060-176-0x0000000077CF0000-0x0000000077E93000-memory.dmp
memory/5060-175-0x0000000002DA0000-0x00000000037E3000-memory.dmp
memory/5060-140-0x0000000077CF0000-0x0000000077E93000-memory.dmp
memory/5060-139-0x0000000000400000-0x0000000000636000-memory.dmp
memory/5060-138-0x00000000023B0000-0x00000000025DA000-memory.dmp
memory/5060-137-0x00000000022CA000-0x00000000023A9000-memory.dmp
memory/5060-209-0x0000000077CF0000-0x0000000077E93000-memory.dmp