Analysis
- max time kernel
138s - max time network
134s - platform
windows10-2004_x64 - resource
win10v2004-20240704-en - resource tags
- submitted
06/07/2024, 15:08
General
- Target file.exe
- Size 2.4MB
- Sample240706-shv6tsvbmf
- SHA256 f5e680092bbd672fc6bf7a403a7f186365032494dd055b24bcb6801a9d54dc39
Malware Config
Extracted
-
stealc
-
Nice
-
http://85.28.47.30
-
url_path
/920475a59bac849d.php
Signatures
- Stealc
Stealc is an infostealer written in C++.
- Downloads MZ/PE file
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- 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 NtSetInformationThreadHideFromDebugger 15 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Delays execution with timeout.exe 1 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Checks computer location settings
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\file.exe" & del "C:\ProgramData\*.dll"" & exit2⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\timeout.exetimeout /t 53⤵
- Delays execution with timeout.exe
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
memory/2384-0-0x0000000000B40000-0x000000000172D000-memory.dmp
memory/2384-1-0x000000007F520000-0x000000007F8F1000-memory.dmp
memory/2384-2-0x0000000000B40000-0x000000000172D000-memory.dmp
memory/2384-4-0x0000000000B40000-0x000000000172D000-memory.dmp
memory/2384-3-0x0000000000B40000-0x000000000172D000-memory.dmp
memory/2384-5-0x000000007F520000-0x000000007F8F1000-memory.dmp
memory/2384-6-0x0000000000B40000-0x000000000172D000-memory.dmp
memory/2384-7-0x0000000000B40000-0x000000000172D000-memory.dmp
memory/2384-8-0x0000000000B40000-0x000000000172D000-memory.dmp
memory/2384-9-0x0000000000B40000-0x000000000172D000-memory.dmp
memory/2384-10-0x0000000000B40000-0x000000000172D000-memory.dmp
memory/2384-11-0x0000000000B40000-0x000000000172D000-memory.dmp
memory/2384-12-0x0000000000B40000-0x000000000172D000-memory.dmp
memory/2384-13-0x0000000000B40000-0x000000000172D000-memory.dmp
memory/2384-14-0x0000000000B40000-0x000000000172D000-memory.dmp
memory/2384-15-0x0000000000B40000-0x000000000172D000-memory.dmp
memory/2384-16-0x0000000061E00000-0x0000000061EF3000-memory.dmp
memory/2384-34-0x0000000000B40000-0x000000000172D000-memory.dmp
memory/2384-36-0x0000000000B40000-0x000000000172D000-memory.dmp