Analysis
- max time kernel
140s - max time network
132s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
25/10/2024, 20:46
General
- Target 25bb383195f795436b47d9b5e747c0aa.exe
- Size 436KB
- Sample241025-zj95psslfx
- SHA256 a7d466f42e71f6c13d9c11c616952b78ea49cef2363bbfbd5f835a8528f4fe2d
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\25bb383195f795436b47d9b5e747c0aa.exe"C:\Users\Admin\AppData\Local\Temp\25bb383195f795436b47d9b5e747c0aa.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\FAFA.tmp.exe"C:\Users\Admin\AppData\Local\Temp\FAFA.tmp.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1788 -s 12763⤵
- Program crash
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 1788 -ip 17881⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
FAFA.tmp.exe
memory/1788-25-0x0000000000400000-0x0000000000661000-memory.dmp
memory/1788-26-0x0000000000400000-0x0000000000661000-memory.dmp
memory/2844-0-0x00000000021E0000-0x000000000221C000-memory.dmp
memory/2844-1-0x0000000002220000-0x0000000002285000-memory.dmp
memory/2844-2-0x0000000000400000-0x0000000000468000-memory.dmp
memory/2844-9-0x0000000000400000-0x000000000047A000-memory.dmp
memory/2844-10-0x00000000021E0000-0x000000000221C000-memory.dmp
memory/2844-11-0x0000000002220000-0x0000000002285000-memory.dmp
memory/2844-12-0x0000000000400000-0x0000000000468000-memory.dmp
memory/2844-24-0x0000000000400000-0x000000000047A000-memory.dmp