Analysis
- max time kernel
294s - max time network
218s - platform
windows10-2004_x64 - resource
win10v2004-20250610-en - resource tags
- submitted
02/07/2025, 03:59
General
- Target FR24037694.ZIP.exe
- Size 614KB
- Sample250702-ej4bya11cs
- SHA256 a5272cb5bc6e3ab5e6769c30edf0f711db1c6880a9d2f303c99042b90f5f19de
Malware Config
Extracted
-
vipkeylogger
-
Protocol
smtp
-
Host
mail.magatzemdoser.com
-
Port
587
-
Username
-
Password
If=1P3Z7,BXJ
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Email to
Signatures
- VIPKeylogger
VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.
- Vipkeylogger family
- Loads dropped DLL 10 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 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
- Drops file in Program Files directory 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 5 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\FR24037694.ZIP.exe"C:\Users\Admin\AppData\Local\Temp\FR24037694.ZIP.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Program Files directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\FR24037694.ZIP.exe"C:\Users\Admin\AppData\Local\Temp\FR24037694.ZIP.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
LangDLL.dll
System.dll
memory/3996-49-0x0000000010004000-0x0000000010005000-memory.dmp
memory/4132-64-0x0000000038660000-0x00000000386FC000-memory.dmp
memory/4132-51-0x0000000077609000-0x000000007760A000-memory.dmp
memory/4132-61-0x0000000000490000-0x00000000016E4000-memory.dmp
memory/4132-62-0x0000000000490000-0x00000000004D8000-memory.dmp
memory/4132-63-0x0000000038070000-0x0000000038614000-memory.dmp
memory/4132-50-0x0000000077568000-0x0000000077569000-memory.dmp
memory/4132-65-0x00000000387B0000-0x00000000387C0000-memory.dmp
memory/4132-67-0x0000000077609000-0x000000007760A000-memory.dmp
memory/4132-68-0x0000000038C80000-0x0000000038E42000-memory.dmp
memory/4132-69-0x0000000038E60000-0x0000000038EB0000-memory.dmp
memory/4132-70-0x00000000387B0000-0x00000000387C0000-memory.dmp
memory/4132-72-0x0000000039070000-0x0000000039102000-memory.dmp
memory/4132-73-0x0000000039160000-0x000000003916A000-memory.dmp