Analysis
- max time kernel
119s - max time network
120s - platform
windows7_x64 - resource
win7-20240903-en - resource tags
- submitted
06/01/2025, 15:00
General
- Target document pdf.exe
- Size 742KB
- Sample250106-sdaz4azjgy
- SHA256 df3c8cc4eaf6b0a8a6a0254c54160486df1b38f8a6591a60dbc520f38389c400
Malware Config
Extracted
-
Protocol
smtp
-
Host
us2.smtp.mailhostbox.com
-
Port
587
-
Username
-
Password
wVCMFq@2wVCMFq@2
Extracted
-
vipkeylogger
-
Protocol
smtp
-
Host
us2.smtp.mailhostbox.com
-
Port
587
-
Username
-
Password
wVCMFq@2wVCMFq@2
-
Email to
Signatures
- VIPKeylogger
VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.
- Vipkeylogger family
- 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
- 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 SetThreadContext 1 IoCs
- Browser Information Discovery 1 TTPs
Enumerate browser information.
- Program crash 1 IoCs
- 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 use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 13 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\document pdf.exe"C:\Users\Admin\AppData\Local\Temp\document pdf.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\document pdf.exe"C:\Users\Admin\AppData\Local\Temp\document pdf.exe"2⤵
- Accesses Microsoft Outlook profiles
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2084 -s 7042⤵
- Program crash
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
memory/1796-22-0x0000000074090000-0x000000007477E000-memory.dmp
memory/1796-19-0x0000000000400000-0x000000000044A000-memory.dmp
memory/1796-26-0x0000000074090000-0x000000007477E000-memory.dmp
memory/1796-25-0x0000000074090000-0x000000007477E000-memory.dmp
memory/1796-23-0x0000000074090000-0x000000007477E000-memory.dmp
memory/1796-11-0x0000000000400000-0x000000000044A000-memory.dmp
memory/1796-9-0x0000000000400000-0x000000000044A000-memory.dmp
memory/1796-7-0x0000000000400000-0x000000000044A000-memory.dmp
memory/1796-21-0x0000000000400000-0x000000000044A000-memory.dmp
memory/1796-13-0x0000000000400000-0x000000000044A000-memory.dmp
memory/1796-15-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/1796-17-0x0000000000400000-0x000000000044A000-memory.dmp
memory/2084-5-0x0000000074090000-0x000000007477E000-memory.dmp
memory/2084-1-0x0000000000A30000-0x0000000000AF0000-memory.dmp
memory/2084-6-0x00000000053E0000-0x000000000546E000-memory.dmp
memory/2084-0-0x000000007409E000-0x000000007409F000-memory.dmp
memory/2084-4-0x000000007409E000-0x000000007409F000-memory.dmp
memory/2084-24-0x0000000074090000-0x000000007477E000-memory.dmp
memory/2084-3-0x00000000005B0000-0x00000000005C4000-memory.dmp
memory/2084-2-0x0000000074090000-0x000000007477E000-memory.dmp