Analysis
- max time kernel
149s - max time network
151s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
31/08/2026, 10:25
General
- Target 9c43b920900fe218212dec879c49c6b31b17ad0cda091818acff94a062b75fb8.exe
- Size 576KB
- Sample260831-mgcefasvcx
- SHA256 9c43b920900fe218212dec879c49c6b31b17ad0cda091818acff94a062b75fb8
Malware Config
Extracted
-
vipkeylogger
-
Protocol
smtp
-
Host
mail.probart.hu
-
Port
25
-
Username
-
Password
Probart12
-
Email to
Signatures
- Family: 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
- Contacts third-party web service commonly abused for C2 1 TTPs 2 IoCs
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
- Looks up external IP address via web service 1 TTPs 3 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 Windows directory 1 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 2 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\9c43b920900fe218212dec879c49c6b31b17ad0cda091818acff94a062b75fb8.exe"C:\Users\Admin\AppData\Local\Temp\9c43b920900fe218212dec879c49c6b31b17ad0cda091818acff94a062b75fb8.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\9c43b920900fe218212dec879c49c6b31b17ad0cda091818acff94a062b75fb8.exe"C:\Users\Admin\AppData\Local\Temp\9c43b920900fe218212dec879c49c6b31b17ad0cda091818acff94a062b75fb8.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 v16
Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
2Credentials In Files
2Replay Monitor
Loading Replay Monitor...
Downloads
System.dll
memory/2296-25-0x0000000038E00000-0x0000000038E9C000-memory.dmp
memory/2296-29-0x00000000717B2000-0x00000000717B3000-memory.dmp
memory/2296-14-0x0000000077855000-0x0000000077856000-memory.dmp
memory/2296-21-0x00000000004C0000-0x00000000017A6000-memory.dmp
memory/2296-22-0x00000000717B2000-0x00000000717B3000-memory.dmp
memory/2296-23-0x00000000004C0000-0x000000000050A000-memory.dmp
memory/2296-13-0x00000000777CF000-0x00000000777D0000-memory.dmp
memory/2296-26-0x00000000717A0000-0x0000000071F5C000-memory.dmp
memory/2296-24-0x0000000038F30000-0x00000000394EA000-memory.dmp
memory/2296-28-0x0000000077855000-0x0000000077856000-memory.dmp
memory/2296-33-0x0000000039C20000-0x000000003A14C000-memory.dmp
memory/2296-30-0x00000000717A0000-0x0000000071F5C000-memory.dmp
memory/2296-31-0x0000000039960000-0x0000000039B22000-memory.dmp
memory/2296-32-0x0000000039B50000-0x0000000039BA0000-memory.dmp
memory/4592-12-0x00000000743B5000-0x00000000743B6000-memory.dmp