Analysis
- max time kernel
133s - max time network
103s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
- submitted
16/05/2024, 01:02
General
- Target 0a9eab89753e07a01b1c5e0197acefea9cc05e5f7829823f811e7aa1d7b817b7.exe
- Size 239KB
- Sample240516-bd6ckadc72
- SHA256 0a9eab89753e07a01b1c5e0197acefea9cc05e5f7829823f811e7aa1d7b817b7
Malware Config
Extracted
-
stealc
-
default100
-
http://185.172.128.150
-
url_path
/c698e1bc8a2f5e6d.php
Signatures
- Stealc
Stealc is an infostealer written in C++.
- Detect binaries embedding considerable number of MFA browser extension IDs. 2 IoCs
- Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs. 2 IoCs
- Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 2 IoCs
- 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.
- Program crash 1 IoCs
- 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\0a9eab89753e07a01b1c5e0197acefea9cc05e5f7829823f811e7aa1d7b817b7.exe"C:\Users\Admin\AppData\Local\Temp\0a9eab89753e07a01b1c5e0197acefea9cc05e5f7829823f811e7aa1d7b817b7.exe"1⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3800 -s 22002⤵
- Program crash
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 3800 -ip 38001⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
Are.docx
mozglue.dll
nss3.dll
memory/3800-1-0x0000000000950000-0x0000000000A50000-memory.dmp
memory/3800-3-0x0000000000400000-0x000000000063B000-memory.dmp
memory/3800-2-0x0000000000900000-0x0000000000927000-memory.dmp
memory/3800-4-0x0000000061E00000-0x0000000061EF3000-memory.dmp
memory/3800-80-0x0000000000400000-0x0000000000793000-memory.dmp
memory/3800-81-0x0000000000400000-0x000000000063B000-memory.dmp