Analysis
- max time kernel
121s - max time network
123s - platform
windows7_x64 - resource
win7-20240508-en - resource tags
- submitted
16/05/2024, 15:36
General
- Target ca20476eab92bfb30bbd6b7ad2961010.exe
- Size 228KB
- Sample240516-s1x35sbd21
- SHA256 5913b56762d3253e0d9cefdd62f311f2a1a902f643b4c4cdb0220d1a38a3dbf9
Malware Config
Extracted
-
stealc
-
default11
-
http://185.172.128.170
-
url_path
/7043a0c6a68d9c65.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 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\ca20476eab92bfb30bbd6b7ad2961010.exe"C:\Users\Admin\AppData\Local\Temp\ca20476eab92bfb30bbd6b7ad2961010.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/2116-2-0x00000000001B0000-0x00000000001D7000-memory.dmp
memory/2116-1-0x0000000000290000-0x0000000000390000-memory.dmp
memory/2116-3-0x0000000000400000-0x000000000063B000-memory.dmp
memory/2116-4-0x0000000061E00000-0x0000000061EF3000-memory.dmp
memory/2116-67-0x0000000000400000-0x000000000063B000-memory.dmp
memory/2116-69-0x0000000000400000-0x000000000063B000-memory.dmp