Analysis
- max time kernel
149s - max time network
133s - platform
windows11-21h2_x64 - resource
win11-20250619-en - resource tags
- submitted
09/10/2025, 16:19
General
- Target d0e312a985c2ef7d0482ab9d588de2c19de50217113d477f87b6c11dc0fa6d82.exe
- Size 394KB
- Sample251009-tswe1sgn3x
- SHA256 d0e312a985c2ef7d0482ab9d588de2c19de50217113d477f87b6c11dc0fa6d82
Malware Config
Extracted
-
vipkeylogger
-
Protocol
smtp
-
Host
mail.pasohonroso.com
-
Port
587
-
Username
-
Password
^qb[MRI~QJ)b
-
Email to
Signatures
- Guloader family
- 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.
- Vipkeylogger family
- 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 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 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\d0e312a985c2ef7d0482ab9d588de2c19de50217113d477f87b6c11dc0fa6d82.exe"C:\Users\Admin\AppData\Local\Temp\d0e312a985c2ef7d0482ab9d588de2c19de50217113d477f87b6c11dc0fa6d82.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\d0e312a985c2ef7d0482ab9d588de2c19de50217113d477f87b6c11dc0fa6d82.exe"C:\Users\Admin\AppData\Local\Temp\d0e312a985c2ef7d0482ab9d588de2c19de50217113d477f87b6c11dc0fa6d82.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
torvedagshandlerens.lnk
memory/488-583-0x0000000001790000-0x0000000002262000-memory.dmp
memory/488-582-0x0000000035850000-0x0000000035860000-memory.dmp
memory/488-592-0x0000000032850000-0x000000003285A000-memory.dmp
memory/488-565-0x0000000077218000-0x0000000077219000-memory.dmp
memory/488-566-0x00000000772AB000-0x00000000772AC000-memory.dmp
memory/488-578-0x0000000000470000-0x0000000001787000-memory.dmp
memory/488-579-0x0000000000470000-0x00000000004B8000-memory.dmp
memory/488-580-0x0000000035110000-0x00000000356B6000-memory.dmp
memory/488-581-0x0000000032C10000-0x0000000032CAC000-memory.dmp
memory/488-591-0x0000000032760000-0x00000000327F2000-memory.dmp
memory/488-590-0x0000000035D80000-0x0000000035DD0000-memory.dmp
memory/488-585-0x00000000772AB000-0x00000000772AC000-memory.dmp
memory/488-586-0x0000000035850000-0x0000000035860000-memory.dmp
memory/488-589-0x0000000035BB0000-0x0000000035D72000-memory.dmp
memory/5184-562-0x0000000004840000-0x0000000005312000-memory.dmp
memory/5184-563-0x0000000073F25000-0x0000000073F26000-memory.dmp
memory/5184-564-0x0000000004840000-0x0000000005312000-memory.dmp