Analysis
- max time kernel
167s - max time network
172s - platform
windows10-2004_x64 - resource
win10v2004-20230915-en - resource tags
- submitted
06/10/2023, 13:45
General
- Target 2023 Customer Information Export(1).doc.exe
- Size 690KB
- Sample231006-q2dpsaeb95
- SHA256 4d845e9e862b6cc61cf4909f4c16c2330483ba62d32c977c0080020a841bf3e1
Malware Config
Signatures
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Adds Run key to start application 2 TTPs 1 IoCs
- Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Program crash 1 IoCs
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\2023 Customer Information Export(1).doc.exe"C:\Users\Admin\AppData\Local\Temp\2023 Customer Information Export(1).doc.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\hETSNfSV" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6E84.tmp"2⤵
- Creates scheduled task(s)
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"{path}"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3972 -s 20203⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3972 -ip 39721⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
tmp6E84.tmp
memory/1804-12-0x000000007F770000-0x000000007F780000-memory.dmp
memory/1804-9-0x00000000093C0000-0x00000000093CC000-memory.dmp
memory/1804-3-0x0000000005EC0000-0x0000000006464000-memory.dmp
memory/1804-4-0x00000000059B0000-0x0000000005A42000-memory.dmp
memory/1804-5-0x0000000005980000-0x0000000005990000-memory.dmp
memory/1804-6-0x0000000005920000-0x000000000592A000-memory.dmp
memory/1804-7-0x0000000005AB0000-0x0000000005B06000-memory.dmp
memory/1804-13-0x00000000094F0000-0x000000000956E000-memory.dmp
memory/1804-0-0x0000000000DD0000-0x0000000000E82000-memory.dmp
memory/1804-10-0x0000000074990000-0x0000000075140000-memory.dmp
memory/1804-2-0x0000000005850000-0x00000000058EC000-memory.dmp
memory/1804-11-0x0000000005980000-0x0000000005990000-memory.dmp
memory/1804-8-0x000000007F770000-0x000000007F780000-memory.dmp
memory/1804-14-0x0000000006D00000-0x0000000006D42000-memory.dmp
memory/1804-1-0x0000000074990000-0x0000000075140000-memory.dmp
memory/1804-20-0x0000000074990000-0x0000000075140000-memory.dmp
memory/3972-18-0x0000000000400000-0x0000000000442000-memory.dmp
memory/3972-21-0x0000000074990000-0x0000000075140000-memory.dmp
memory/3972-22-0x0000000005400000-0x0000000005410000-memory.dmp
memory/3972-23-0x0000000005580000-0x00000000055E6000-memory.dmp
memory/3972-24-0x0000000074990000-0x0000000075140000-memory.dmp
memory/3972-25-0x0000000005400000-0x0000000005410000-memory.dmp
memory/3972-28-0x0000000074990000-0x0000000075140000-memory.dmp