Analysis
- max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
26/10/2024, 01:53
General
- Target 6aa4aecddd8e0ffc3b3cee5987c88d34eb7cb048cb5a42983b2b223875182bd4.exe
- Size 784KB
- Sample241026-ca61csvpfm
- SHA256 6aa4aecddd8e0ffc3b3cee5987c88d34eb7cb048cb5a42983b2b223875182bd4
Malware Config
Extracted
-
vipkeylogger
-
https://api.telegram.org/bot7500341588:AAHsqawFdC2urnq1E6blZy5E3r-OiJvH9ZA/sendMessage?chat_id=7267131103
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 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 Program Files directory 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\6aa4aecddd8e0ffc3b3cee5987c88d34eb7cb048cb5a42983b2b223875182bd4.exe"C:\Users\Admin\AppData\Local\Temp\6aa4aecddd8e0ffc3b3cee5987c88d34eb7cb048cb5a42983b2b223875182bd4.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\6aa4aecddd8e0ffc3b3cee5987c88d34eb7cb048cb5a42983b2b223875182bd4.exe"C:\Users\Admin\AppData\Local\Temp\6aa4aecddd8e0ffc3b3cee5987c88d34eb7cb048cb5a42983b2b223875182bd4.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/4284-40-0x00000000330D0000-0x000000003316C000-memory.dmp
memory/4284-36-0x0000000000480000-0x00000000016D4000-memory.dmp
memory/4284-45-0x0000000036130000-0x000000003613A000-memory.dmp
memory/4284-35-0x0000000000480000-0x00000000016D4000-memory.dmp
memory/4284-44-0x0000000036060000-0x00000000360F2000-memory.dmp
memory/4284-19-0x00000000016E0000-0x00000000026A3000-memory.dmp
memory/4284-20-0x0000000077578000-0x0000000077579000-memory.dmp
memory/4284-21-0x00000000016E0000-0x00000000026A3000-memory.dmp
memory/4284-43-0x0000000035FB0000-0x0000000036000000-memory.dmp
memory/4284-22-0x0000000077595000-0x0000000077596000-memory.dmp
memory/4284-42-0x0000000035DE0000-0x0000000035FA2000-memory.dmp
memory/4284-37-0x00000000774F1000-0x0000000077611000-memory.dmp
memory/4284-38-0x0000000000480000-0x00000000004C8000-memory.dmp
memory/4284-39-0x0000000035430000-0x00000000359D4000-memory.dmp
memory/4956-14-0x0000000004200000-0x00000000051C3000-memory.dmp
memory/4956-16-0x0000000010004000-0x0000000010005000-memory.dmp
memory/4956-15-0x00000000774F1000-0x0000000077611000-memory.dmp
memory/4956-18-0x0000000004200000-0x00000000051C3000-memory.dmp
memory/4956-17-0x0000000004200000-0x00000000051C3000-memory.dmp