Analysis
- max time kernel
150s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
26/10/2024, 16:56
General
- Target 9883fdabd29a18139bd1cadedf550f35.exe
- Size 455KB
- Sample241026-vfpmdawepa
- SHA256 2d982e9ce07d6b2d0359f388c0cc0e2ad3fc3bed3b44236ef9d442abcaf44f30
Malware Config
Extracted
-
stealc
-
default9_cap
-
http://62.204.41.177
-
url_path
/edd20096ecef326d.php
Signatures
- Stealc
Stealc is an infostealer written in C++.
- Stealc family
- Downloads MZ/PE file
- 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).
- Program crash 1 IoCs
- System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of SendNotifyMessage 1 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\9883fdabd29a18139bd1cadedf550f35.exe"C:\Users\Admin\AppData\Local\Temp\9883fdabd29a18139bd1cadedf550f35.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\AF2C.tmp.exe"C:\Users\Admin\AppData\Local\Temp\AF2C.tmp.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2108 -s 10163⤵
- Program crash
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 2108 -ip 21081⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
AF2C.tmp.exe
memory/2108-28-0x0000000000400000-0x0000000002B67000-memory.dmp
memory/2108-27-0x0000000000400000-0x0000000002B67000-memory.dmp
memory/2108-26-0x0000000000400000-0x0000000002B67000-memory.dmp
memory/2108-25-0x0000000000400000-0x0000000002B67000-memory.dmp
memory/3112-10-0x0000000000710000-0x0000000000810000-memory.dmp
memory/3112-16-0x0000000000400000-0x0000000000468000-memory.dmp
memory/3112-12-0x0000000000400000-0x0000000000550000-memory.dmp
memory/3112-11-0x0000000000A10000-0x0000000000A75000-memory.dmp
memory/3112-2-0x0000000000A10000-0x0000000000A75000-memory.dmp
memory/3112-3-0x0000000000400000-0x0000000000468000-memory.dmp
memory/3112-1-0x0000000000710000-0x0000000000810000-memory.dmp
memory/3112-29-0x0000000000400000-0x0000000000550000-memory.dmp