Analysis
- max time kernel
149s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20240708-en - resource tags
- submitted
09/07/2024, 15:37
General
- Target 25d515f52e58c10727895f1ee1a269998e37d3b4308e6ac6f1419186c30290a9.exe
- Size 2.4MB
- Sample240709-s2nabssdnh
- SHA256 25d515f52e58c10727895f1ee1a269998e37d3b4308e6ac6f1419186c30290a9
Malware Config
Extracted
-
stealc
-
hate
-
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 3 IoCs
Looks up country code configured in the registry, likely geofence.
- Loads dropped DLL 2 IoCs
- Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- 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 3 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.
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious use of SetWindowsHookEx 3 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\25d515f52e58c10727895f1ee1a269998e37d3b4308e6ac6f1419186c30290a9.exe"C:\Users\Admin\AppData\Local\Temp\25d515f52e58c10727895f1ee1a269998e37d3b4308e6ac6f1419186c30290a9.exe"1⤵
- Checks computer location settings
- Loads dropped DLL
- 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 start "" "C:\Users\Admin\AppData\Local\Temp\KKFCAAKFBA.exe"2⤵
- Checks computer location settings
- Suspicious use of SetWindowsHookEx
-
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\KKFCAAKFBA.exe"2⤵
- Checks computer location settings
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
mozglue.dll
nss3.dll
memory/4340-0-0x00000000004E0000-0x00000000010DD000-memory.dmp
memory/4340-1-0x000000007EAE0000-0x000000007EEB1000-memory.dmp
memory/4340-2-0x0000000061E00000-0x0000000061EF3000-memory.dmp
memory/4340-74-0x00000000004E0000-0x00000000010DD000-memory.dmp
memory/4340-79-0x00000000004E0000-0x00000000010DD000-memory.dmp
memory/4340-80-0x000000007EAE0000-0x000000007EEB1000-memory.dmp