Analysis
- max time kernel
139s - max time network
114s - platform
windows10-2004_x64 - resource
win10v2004-20240611-en - resource tags
- submitted
27/06/2024, 14:41
General
- Target b3b2b2e174b084a99e657ffc6d0a018a.exe
- Size 1.5MB
- Sample240627-r2egraybpp
- SHA256 c5306ed9fda803fbf4fa458b53ccf55be31d944d87f8947c0eee4d9a32bc914d
Malware Config
Extracted
-
stealc
-
default
-
http://68.183.108.129
-
url_path
/6259fdc16222e061.php
Signatures
- Stealc
Stealc is an infostealer written in C++.
- Downloads MZ/PE file
- Executes dropped EXE 1 IoCs
- 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 SetThreadContext 1 IoCs
- 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 WriteProcessMemory 8 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\b3b2b2e174b084a99e657ffc6d0a018a.exe"C:\Users\Admin\AppData\Local\Temp\b3b2b2e174b084a99e657ffc6d0a018a.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\kat3846.tmpC:\Users\Admin\AppData\Local\Temp\kat3846.tmp2⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
mozglue.dll
nss3.dll
kat3846.tmp
memory/3076-1-0x0000000002A90000-0x0000000002B94000-memory.dmp
memory/3076-0-0x0000000000740000-0x0000000000741000-memory.dmp
memory/3076-10-0x0000000000400000-0x0000000000582000-memory.dmp
memory/3480-8-0x0000000000400000-0x000000000063C000-memory.dmp
memory/3480-11-0x0000000061E00000-0x0000000061EF3000-memory.dmp
memory/3480-59-0x0000000000400000-0x000000000063C000-memory.dmp
memory/3480-4-0x0000000000400000-0x000000000063C000-memory.dmp
memory/3480-9-0x0000000000400000-0x000000000063C000-memory.dmp
memory/3480-84-0x0000000000400000-0x000000000063C000-memory.dmp
memory/3480-85-0x0000000000400000-0x000000000063C000-memory.dmp