Analysis
- max time kernel
141s - max time network
155s - platform
windows10-2004_x64 - resource
win10v2004-20231020-en - resource tags
- submitted
24/10/2023, 10:20
General
- Target file.exe
- Size 174KB
- Sample231024-mc32lacb8v
- SHA256 93daff65c57117fbfd0f81b0f756f547467dfb09a0dc4952d0c8013ab6558bee
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/948-5-0x0000000000400000-0x00000000007B4000-memory.dmp
memory/948-6-0x0000000002510000-0x000000000252B000-memory.dmp
memory/948-7-0x0000000000400000-0x00000000007B4000-memory.dmp
memory/948-10-0x0000000061E00000-0x0000000061EF3000-memory.dmp
memory/948-48-0x0000000000400000-0x00000000007B4000-memory.dmp
memory/948-52-0x0000000000400000-0x00000000007B4000-memory.dmp
memory/948-59-0x0000000000400000-0x00000000007B4000-memory.dmp
memory/948-68-0x0000000000400000-0x00000000007B4000-memory.dmp
memory/948-1-0x0000000000A50000-0x0000000000B50000-memory.dmp
memory/948-4-0x0000000000A50000-0x0000000000B50000-memory.dmp
memory/948-3-0x0000000000400000-0x00000000007B4000-memory.dmp
memory/948-2-0x0000000002510000-0x000000000252B000-memory.dmp
memory/948-97-0x0000000000400000-0x00000000007B4000-memory.dmp