Analysis
- max time kernel
222s - max time network
272s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
27/12/2023, 04:18
General
- Target SecuriteInfo.com.Trojan.PWS.Siggen3.35279.1356.9470.exe
- Size 278KB
- Sample231227-ew1ftacef5
- SHA256 2628201fa47cb015f5cc8ed60f7495ee3897a5b361971f82a7ebc2cd24cace46
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.
- 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\SecuriteInfo.com.Trojan.PWS.Siggen3.35279.1356.9470.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.PWS.Siggen3.35279.1356.9470.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
nss3.dll
memory/4756-28-0x0000000000400000-0x000000000062E000-memory.dmp
memory/4756-29-0x0000000000400000-0x000000000062E000-memory.dmp
memory/4756-5-0x00000000008A0000-0x00000000009A0000-memory.dmp
memory/4756-6-0x0000000000400000-0x000000000062E000-memory.dmp
memory/4756-7-0x0000000002370000-0x000000000238C000-memory.dmp
memory/4756-8-0x0000000000400000-0x000000000062E000-memory.dmp
memory/4756-9-0x0000000000400000-0x000000000062E000-memory.dmp
memory/4756-10-0x0000000061E00000-0x0000000061EF3000-memory.dmp
memory/4756-2-0x0000000002370000-0x000000000238C000-memory.dmp
memory/4756-4-0x0000000000400000-0x000000000062E000-memory.dmp
memory/4756-30-0x0000000000400000-0x000000000062E000-memory.dmp
memory/4756-34-0x0000000000400000-0x000000000062E000-memory.dmp
memory/4756-38-0x0000000000400000-0x000000000062E000-memory.dmp
memory/4756-39-0x0000000000400000-0x000000000062E000-memory.dmp
memory/4756-61-0x0000000000400000-0x000000000062E000-memory.dmp
memory/4756-74-0x0000000000400000-0x000000000062E000-memory.dmp
memory/4756-3-0x0000000000400000-0x000000000062E000-memory.dmp
memory/4756-1-0x00000000008A0000-0x00000000009A0000-memory.dmp
memory/4756-86-0x0000000000400000-0x000000000062E000-memory.dmp
memory/4756-87-0x0000000000400000-0x000000000062E000-memory.dmp