Analysis
- max time kernel
152s - max time network
156s - platform
windows10-2004_x64 - resource
win10v2004-20231127-en - resource tags
- submitted
30/11/2023, 10:07
General
- Target file.exe
- Size 291KB
- Sample231130-l5mpmsae25
- SHA256 834b73d2202e64d5ad7aca2f5763c5fa77683e7144ba53eb385a381cd99fc4ae
Score
10/10
Malware Config
Extracted
Family
-
stealc
C2
-
http://5.42.64.41
Attributes
-
url_path
/40d570f44e84a454.php
rc4.plain
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.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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
mozglue.dll
mozglue.dll
nss3.dll
memory/4632-1-0x0000000002CA0000-0x0000000002DA0000-memory.dmp
memory/4632-2-0x00000000001C0000-0x00000000001DB000-memory.dmp
memory/4632-3-0x0000000000400000-0x0000000002ABF000-memory.dmp
memory/4632-4-0x0000000000400000-0x0000000002ABF000-memory.dmp
memory/4632-5-0x0000000061E00000-0x0000000061EF3000-memory.dmp