Analysis
- max time kernel
118s - max time network
121s - platform
windows7_x64 - resource
win7-20231215-en - resource tags
- submitted
21/02/2024, 07:57
General
- Target 70241b767ead356ff54eecae6a86202c.exe
- Size 226KB
- Sample240221-js9mjadf32
- SHA256 c6b066e441a2740f87cfa1e2a8da69a5dc7814411088d3f69c4d9fe9d2bf2ce4
Malware Config
Extracted
-
stealc
-
http://185.172.128.145
-
url_path
/3cd2b41cbde8fc9c.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.
- 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\70241b767ead356ff54eecae6a86202c.exe"C:\Users\Admin\AppData\Local\Temp\70241b767ead356ff54eecae6a86202c.exe"1⤵
- 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
memory/2300-1-0x0000000002DB0000-0x0000000002EB0000-memory.dmp
memory/2300-2-0x00000000002A0000-0x00000000002D4000-memory.dmp
memory/2300-3-0x0000000000400000-0x0000000002D37000-memory.dmp
memory/2300-4-0x0000000061E00000-0x0000000061EF3000-memory.dmp
memory/2300-57-0x0000000000400000-0x0000000002D37000-memory.dmp
memory/2300-77-0x0000000000400000-0x0000000002D37000-memory.dmp
memory/2300-78-0x0000000002DB0000-0x0000000002EB0000-memory.dmp