Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
28/05/2024, 00:07
General
- Target 2867e0e869db5b5f3e15fb7c9745412d4466a5dc4611a1bedc87fdc4eab96e2b_NeikiAnalytics.exe
- Size 2.0MB
- Sample240528-aefb4agc58
- SHA256 2867e0e869db5b5f3e15fb7c9745412d4466a5dc4611a1bedc87fdc4eab96e2b
Malware Config
Extracted
-
stealc
Extracted
-
vidar
-
https://steamcommunity.com/profiles/76561199689717899
-
https://t.me/copterwin
-
user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.0) Gecko/20100101 Firefox/128.0
Signatures
- Detect Vidar Stealer 14 IoCs
- Stealc
Stealc is an infostealer written in C++.
- Vidar
Vidar is an infostealer based on Arkei stealer.
- Downloads MZ/PE file
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 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 local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- 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.
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
- Delays execution with timeout.exe 1 IoCs
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2867e0e869db5b5f3e15fb7c9745412d4466a5dc4611a1bedc87fdc4eab96e2b_NeikiAnalytics.exe"C:\Users\Admin\AppData\Local\Temp\2867e0e869db5b5f3e15fb7c9745412d4466a5dc4611a1bedc87fdc4eab96e2b_NeikiAnalytics.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\kat54E6.tmpC:\Users\Admin\AppData\Local\Temp\kat54E6.tmp2⤵
- Checks computer location settings
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat54E6.tmp" & rd /s /q "C:\ProgramData\BFHJECAAAFHI" & exit3⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\timeout.exetimeout /t 104⤵
- Delays execution with timeout.exe
-
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
kat54E6.tmp
memory/228-10-0x0000000000400000-0x000000000060C000-memory.dmp
memory/228-2-0x0000000003FF0000-0x0000000004139000-memory.dmp
memory/228-0-0x0000000002270000-0x0000000002271000-memory.dmp
memory/4028-18-0x0000000000400000-0x0000000000646000-memory.dmp
memory/4028-36-0x0000000000400000-0x0000000000646000-memory.dmp
memory/4028-8-0x0000000000400000-0x0000000000646000-memory.dmp
memory/4028-17-0x0000000000400000-0x0000000000646000-memory.dmp
memory/4028-4-0x0000000000400000-0x0000000000646000-memory.dmp
memory/4028-20-0x000000001B7B0000-0x000000001BA0F000-memory.dmp
memory/4028-35-0x0000000000400000-0x0000000000646000-memory.dmp
memory/4028-9-0x0000000000400000-0x0000000000646000-memory.dmp
memory/4028-52-0x0000000000400000-0x0000000000646000-memory.dmp
memory/4028-53-0x0000000000400000-0x0000000000646000-memory.dmp
memory/4028-64-0x0000000000400000-0x0000000000646000-memory.dmp
memory/4028-65-0x0000000000400000-0x0000000000646000-memory.dmp
memory/4028-66-0x0000000000400000-0x0000000000646000-memory.dmp
memory/4028-67-0x0000000000400000-0x0000000000646000-memory.dmp