Analysis
- max time kernel
172s - max time network
185s - platform
windows10-2004_x64 - resource
win10v2004-20231023-en - resource tags
- submitted
09/11/2023, 20:46
General
- Target file.exe
- Size 268KB
- Sample231109-zj95psdf41
- SHA256 e744b79af6c59cc333045532e6ad3fb18105ea1e49f57d61bfdf9ae5b89c802b
Malware Config
Extracted
-
stealc
-
http://arturogillotti.icu
-
url_path
/40d570f44e84a454.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.
- 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
Are.docx
mozglue.dll
mozglue.dll
nss3.dll
memory/1564-48-0x0000000000400000-0x00000000007CC000-memory.dmp
memory/1564-4-0x0000000000400000-0x00000000007CC000-memory.dmp
memory/1564-7-0x0000000000400000-0x00000000007CC000-memory.dmp
memory/1564-8-0x0000000000400000-0x00000000007CC000-memory.dmp
memory/1564-9-0x0000000000400000-0x00000000007CC000-memory.dmp
memory/1564-10-0x0000000061E00000-0x0000000061EF3000-memory.dmp
memory/1564-1-0x0000000000850000-0x0000000000950000-memory.dmp
memory/1564-67-0x0000000000400000-0x00000000007CC000-memory.dmp
memory/1564-5-0x0000000000850000-0x0000000000950000-memory.dmp
memory/1564-6-0x00000000023D0000-0x00000000023EB000-memory.dmp
memory/1564-3-0x0000000000400000-0x00000000007CC000-memory.dmp
memory/1564-80-0x0000000000400000-0x00000000007CC000-memory.dmp
memory/1564-81-0x0000000000400000-0x00000000007CC000-memory.dmp
memory/1564-85-0x0000000000400000-0x00000000007CC000-memory.dmp
memory/1564-99-0x0000000000400000-0x00000000007CC000-memory.dmp
memory/1564-101-0x0000000000400000-0x00000000007CC000-memory.dmp
memory/1564-2-0x00000000023D0000-0x00000000023EB000-memory.dmp
memory/1564-106-0x0000000000400000-0x00000000007CC000-memory.dmp
memory/1564-107-0x0000000000400000-0x00000000007CC000-memory.dmp