Analysis
- max time kernel
91s - max time network
94s - platform
windows11-21h2_x64 - resource
win11-20240426-en - resource tags
- submitted
03/06/2024, 12:24
General
- Target ae5645ed5f3677aa1d07c77786b61ad48fb2df926bda49fd21c43bc13f9367cc.exe
- Size 1.8MB
- Sample240603-plashsec6z
- SHA256 ae5645ed5f3677aa1d07c77786b61ad48fb2df926bda49fd21c43bc13f9367cc
Malware Config
Extracted
-
stealc
Extracted
-
vidar
-
https://t.me/ta904ek
-
https://steamcommunity.com/profiles/76561199695752269
-
user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.0) Gecko/20100101 Firefox/128.0
Signatures
- Detect Vidar Stealer 9 IoCs
- Stealc
Stealc is an infostealer written in C++.
- Vidar
Vidar is an infostealer based on Arkei stealer.
- Downloads MZ/PE file
- Executes dropped EXE 1 IoCs
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Suspicious use of SetThreadContext 1 IoCs
- Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\ae5645ed5f3677aa1d07c77786b61ad48fb2df926bda49fd21c43bc13f9367cc.exe"C:\Users\Admin\AppData\Local\Temp\ae5645ed5f3677aa1d07c77786b61ad48fb2df926bda49fd21c43bc13f9367cc.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\kat6A33.tmpC:\Users\Admin\AppData\Local\Temp\kat6A33.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
kat6A33.tmp
memory/1788-9-0x0000000000400000-0x00000000005CE000-memory.dmp
memory/1788-1-0x0000000003FE0000-0x000000000412C000-memory.dmp
memory/1788-0-0x0000000002430000-0x0000000002431000-memory.dmp
memory/3472-8-0x0000000000400000-0x0000000000649000-memory.dmp
memory/3472-10-0x0000000000400000-0x0000000000649000-memory.dmp
memory/3472-4-0x0000000000400000-0x0000000000649000-memory.dmp
memory/3472-15-0x0000000000400000-0x0000000000649000-memory.dmp
memory/3472-16-0x0000000000400000-0x0000000000649000-memory.dmp
memory/3472-18-0x0000000019360000-0x00000000195BF000-memory.dmp
memory/3472-33-0x0000000000400000-0x0000000000649000-memory.dmp
memory/3472-49-0x0000000000400000-0x0000000000649000-memory.dmp
memory/3472-50-0x0000000000400000-0x0000000000649000-memory.dmp