Analysis
- max time kernel
292s - max time network
203s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
24/10/2024, 15:24
General
- Target Würth factura 4052077636.exe
- Size 769KB
- Sample241024-stbxbswdmp
- SHA256 23a0c7ff2552ac978be0814af27520f076b2a94914862db85beb765c62ea350c
Malware Config
Extracted
-
vipkeylogger
-
https://api.telegram.org/bot7773291387:AAFW0tyP5tccfsSYvPespY2G7aDGr5DPwdk/sendMessage?chat_id=7981072606
Signatures
- Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
- VIPKeylogger
VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.
- Loads dropped DLL 1 IoCs
- 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 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
- Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Drops file in Program Files directory 2 IoCs
- Browser Information Discovery 1 TTPs
Enumerate browser information.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Würth factura 4052077636.exe"C:\Users\Admin\AppData\Local\Temp\Würth factura 4052077636.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\Würth factura 4052077636.exe"C:\Users\Admin\AppData\Local\Temp\Würth factura 4052077636.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v15
Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
2Credentials In Files
2Replay Monitor
Loading Replay Monitor...
Downloads
System.dll
memory/1152-38-0x0000000038020000-0x00000000381E2000-memory.dmp
memory/1152-36-0x0000000037420000-0x00000000374BC000-memory.dmp
memory/1152-42-0x00000000383C0000-0x00000000383CA000-memory.dmp
memory/1152-41-0x00000000382F0000-0x0000000038382000-memory.dmp
memory/1152-18-0x00000000016E0000-0x00000000046B1000-memory.dmp
memory/1152-31-0x0000000000480000-0x00000000016D4000-memory.dmp
memory/1152-39-0x0000000038210000-0x0000000038260000-memory.dmp
memory/1152-34-0x0000000000480000-0x00000000004C8000-memory.dmp
memory/1152-32-0x00000000016E0000-0x00000000046B1000-memory.dmp
memory/1152-35-0x00000000375E0000-0x0000000037B84000-memory.dmp
memory/1152-33-0x0000000000480000-0x00000000016D4000-memory.dmp
memory/3448-14-0x0000000004210000-0x00000000071E1000-memory.dmp
memory/3448-15-0x0000000077DD1000-0x0000000077EF1000-memory.dmp
memory/3448-17-0x0000000004210000-0x00000000071E1000-memory.dmp
memory/3448-16-0x0000000010004000-0x0000000010005000-memory.dmp