Analysis
- max time kernel
151s - max time network
156s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
09/01/2024, 13:10
General
- Target file.exe
- Size 311KB
- Sample240109-qectzacfc2
- SHA256 6534b09aaf207abaa69df8a5065e0f098f24d547542e6581e52b04d33d276c82
Malware Config
Extracted
-
stealc
-
http://5.42.64.41
-
url_path
/40d570f44e84a454.php
Signatures
- Stealc
Stealc is an infostealer written in C++.
- Downloads MZ/PE file
- 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.
- 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 2 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
mozglue.dll
mozglue.dll
nss3.dll
memory/3372-62-0x0000000000400000-0x000000000086F000-memory.dmp
memory/3372-5-0x0000000000400000-0x000000000086F000-memory.dmp
memory/3372-6-0x0000000000AE0000-0x0000000000BE0000-memory.dmp
memory/3372-7-0x0000000061E00000-0x0000000061EF3000-memory.dmp
memory/3372-55-0x00000000009C0000-0x00000000009DC000-memory.dmp
memory/3372-1-0x0000000000AE0000-0x0000000000BE0000-memory.dmp
memory/3372-4-0x0000000000400000-0x000000000086F000-memory.dmp
memory/3372-3-0x0000000000400000-0x000000000086F000-memory.dmp
memory/3372-2-0x00000000009C0000-0x00000000009DC000-memory.dmp
memory/3372-80-0x0000000000400000-0x000000000086F000-memory.dmp
memory/3372-81-0x0000000000400000-0x000000000086F000-memory.dmp
memory/3372-88-0x0000000000400000-0x000000000086F000-memory.dmp
memory/3372-95-0x0000000000400000-0x000000000086F000-memory.dmp