Analysis
- max time kernel
150s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20230915-en - resource tags
- submitted
03/10/2023, 18:12
General
- Target a8890ad2a8832f94db0ef4255a97d8b8_JC.exe
- Size 29KB
- Sample231003-wtcemsef5t
- SHA256 8b415185b3bb2144e6b0f6d6f936adc802c415f8ccbece0206e6bad0b9541be2
Malware Config
Signatures
- Upatre
Upatre is a generic malware downloader.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\a8890ad2a8832f94db0ef4255a97d8b8_JC.exe"C:\Users\Admin\AppData\Local\Temp\a8890ad2a8832f94db0ef4255a97d8b8_JC.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\szgfw.exe"C:\Users\Admin\AppData\Local\Temp\szgfw.exe"2⤵
- Executes dropped EXE
-
-
C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe1⤵
-
C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k UnistackSvcGroup1⤵
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
store.jfm
szgfw.exe
szgfw.exe
szgfw.exe
memory/320-56-0x000001FA81130000-0x000001FA81131000-memory.dmp
memory/320-59-0x000001FA81130000-0x000001FA81131000-memory.dmp
memory/320-18-0x000001FA7BA40000-0x000001FA7BA50000-memory.dmp
memory/320-34-0x000001FA7BB40000-0x000001FA7BB50000-memory.dmp
memory/320-50-0x000001FA81100000-0x000001FA81101000-memory.dmp
memory/320-51-0x000001FA81130000-0x000001FA81131000-memory.dmp
memory/320-52-0x000001FA81130000-0x000001FA81131000-memory.dmp
memory/320-53-0x000001FA81130000-0x000001FA81131000-memory.dmp
memory/320-54-0x000001FA81130000-0x000001FA81131000-memory.dmp
memory/320-55-0x000001FA81130000-0x000001FA81131000-memory.dmp
memory/320-86-0x000001FA7FFA0000-0x000001FA7FFA1000-memory.dmp
memory/320-57-0x000001FA81130000-0x000001FA81131000-memory.dmp
memory/320-58-0x000001FA81130000-0x000001FA81131000-memory.dmp
memory/320-85-0x000001FA7FE90000-0x000001FA7FE91000-memory.dmp
memory/320-60-0x000001FA81130000-0x000001FA81131000-memory.dmp
memory/320-61-0x000001FA7FD50000-0x000001FA7FD51000-memory.dmp
memory/320-62-0x000001FA7FD40000-0x000001FA7FD41000-memory.dmp
memory/320-64-0x000001FA7FD50000-0x000001FA7FD51000-memory.dmp
memory/320-67-0x000001FA7FD40000-0x000001FA7FD41000-memory.dmp
memory/320-70-0x000001FA7FC80000-0x000001FA7FC81000-memory.dmp
memory/320-84-0x000001FA7FE90000-0x000001FA7FE91000-memory.dmp
memory/320-82-0x000001FA7FE80000-0x000001FA7FE81000-memory.dmp
memory/968-10-0x0000000000400000-0x0000000000409000-memory.dmp
memory/4132-9-0x0000000000400000-0x0000000000409000-memory.dmp
memory/4132-0-0x0000000000590000-0x0000000000591000-memory.dmp