Analysis
- max time kernel
142s - max time network
141s - platform
windows11-21h2_x64 - resource
win11-20250619-en - resource tags
- submitted
30/09/2025, 14:00
General
- Target rFACTURA25-00897.exe
- Size 580KB
- Sample250930-rbdsjaxxe1
- SHA256 966fae15977591dcc0cbb59722997dcc6093e56c4de02f5b20644c4dfe05d2ea
Malware Config
Extracted
-
vipkeylogger
-
Protocol
smtp
-
Host
smtp.ionos.es
-
Port
587
-
Username
-
Password
Newsline.2014
-
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 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
- 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\rFACTURA25-00897.exe"C:\Users\Admin\AppData\Local\Temp\rFACTURA25-00897.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\rFACTURA25-00897.exe"C:\Users\Admin\AppData\Local\Temp\rFACTURA25-00897.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/2624-10-0x00000000746F5000-0x00000000746F6000-memory.dmp
memory/5056-11-0x00000000779E8000-0x00000000779E9000-memory.dmp
memory/5056-12-0x0000000077A7B000-0x0000000077A7C000-memory.dmp
memory/5056-24-0x0000000000490000-0x00000000017A7000-memory.dmp
memory/5056-25-0x0000000000490000-0x00000000004D8000-memory.dmp
memory/5056-26-0x00000000390E0000-0x0000000039686000-memory.dmp
memory/5056-27-0x0000000038FA0000-0x000000003903C000-memory.dmp
memory/5056-28-0x0000000039070000-0x0000000039080000-memory.dmp
memory/5056-30-0x0000000077A7B000-0x0000000077A7C000-memory.dmp
memory/5056-31-0x0000000039070000-0x0000000039080000-memory.dmp
memory/5056-33-0x0000000039BD0000-0x0000000039D92000-memory.dmp
memory/5056-34-0x0000000039DC0000-0x0000000039E10000-memory.dmp
memory/5056-36-0x0000000039FD0000-0x000000003A062000-memory.dmp
memory/5056-37-0x000000003A0B0000-0x000000003A0BA000-memory.dmp