Analysis
- max time kernel
147s - max time network
144s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
25/11/2024, 03:01
General
- Target d6671c0032650d42dfaccb25d36507764dce6af6e577bcc7125559747be2da97.exe
- Size 552KB
- Sample241125-dh42eavnav
- SHA256 d6671c0032650d42dfaccb25d36507764dce6af6e577bcc7125559747be2da97
Malware Config
Extracted
-
vipkeylogger
-
https://api.telegram.org/bot5049969282:AAH9uCOswhSYvcxjDJ1p81mZiTgnuLqELhE/sendMessage?chat_id=1398386501
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
- Looks up external IP address via web service 1 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 5 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\d6671c0032650d42dfaccb25d36507764dce6af6e577bcc7125559747be2da97.exe"C:\Users\Admin\AppData\Local\Temp\d6671c0032650d42dfaccb25d36507764dce6af6e577bcc7125559747be2da97.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\d6671c0032650d42dfaccb25d36507764dce6af6e577bcc7125559747be2da97.exe"C:\Users\Admin\AppData\Local\Temp\d6671c0032650d42dfaccb25d36507764dce6af6e577bcc7125559747be2da97.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 v15
Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
2Credentials In Files
2Replay Monitor
Loading Replay Monitor...
Downloads
System.dll
memory/468-8-0x0000000002E00000-0x0000000004B71000-memory.dmp
memory/468-9-0x00000000772F1000-0x0000000077411000-memory.dmp
memory/468-10-0x0000000073FE4000-0x0000000073FE5000-memory.dmp
memory/468-11-0x0000000002E00000-0x0000000004B71000-memory.dmp
memory/1848-12-0x0000000001A40000-0x00000000037B1000-memory.dmp
memory/1848-19-0x00000000007E0000-0x0000000001A34000-memory.dmp
memory/1848-20-0x00000000007E0000-0x000000000082A000-memory.dmp
memory/1848-21-0x0000000036450000-0x00000000369F4000-memory.dmp
memory/1848-22-0x0000000036A00000-0x0000000036A9C000-memory.dmp
memory/1848-24-0x0000000001A40000-0x00000000037B1000-memory.dmp
memory/1848-25-0x0000000037120000-0x00000000372E2000-memory.dmp
memory/1848-26-0x0000000037310000-0x0000000037360000-memory.dmp
memory/1848-27-0x00000000373F0000-0x000000003791C000-memory.dmp
memory/1848-30-0x0000000033E50000-0x0000000033EE2000-memory.dmp
memory/1848-31-0x0000000033F10000-0x0000000033F1A000-memory.dmp