Analysis
- max time kernel
141s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20231023-en - resource tags
- submitted
23/10/2023, 23:27
General
- Target file.exe
- Size 264KB
- Sample231023-3fd5msag39
- SHA256 e5fceb9a524e67e0e9de3a7041d45e822a2ac51f111f77cfb821e9380b453fcf
Malware Config
Extracted
-
stealc
-
http://wy�ttsebastian.top
-
url_path
/e9c345fc99a4e67e.php
Signatures
- Stealc
Stealc is an infostealer written in C++.
- Downloads MZ/PE file
- Loads dropped DLL 2 IoCs
- 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.
- 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
Are.docx
mozglue.dll
mozglue.dll
nss3.dll
memory/820-7-0x0000000000400000-0x000000000062D000-memory.dmp
memory/820-6-0x0000000000400000-0x000000000062D000-memory.dmp
memory/820-1-0x0000000000970000-0x0000000000A70000-memory.dmp
memory/820-8-0x0000000000400000-0x000000000062D000-memory.dmp
memory/820-15-0x0000000061E00000-0x0000000061EF3000-memory.dmp
memory/820-62-0x0000000000400000-0x000000000062D000-memory.dmp
memory/820-5-0x0000000002370000-0x000000000238B000-memory.dmp
memory/820-4-0x0000000000970000-0x0000000000A70000-memory.dmp
memory/820-3-0x0000000000400000-0x000000000062D000-memory.dmp
memory/820-2-0x0000000002370000-0x000000000238B000-memory.dmp
memory/820-99-0x0000000000400000-0x000000000062D000-memory.dmp