Analysis
- max time kernel
143s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
06/11/2024, 12:03
General
- Target 24de759c141ec60a2d89352e581ccc47b83d0240702283903e8cbdd1d9745265.exe
- Size 823KB
- Sample241106-n77tpsskfk
- SHA256 24de759c141ec60a2d89352e581ccc47b83d0240702283903e8cbdd1d9745265
Malware Config
Extracted
-
vipkeylogger
-
https://api.telegram.org/bot8148338634:AAFvLNrhxaF7bMPzQMLbUnueRMJvDIi5kcU/sendMessage?chat_id=7698865320
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 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\24de759c141ec60a2d89352e581ccc47b83d0240702283903e8cbdd1d9745265.exe"C:\Users\Admin\AppData\Local\Temp\24de759c141ec60a2d89352e581ccc47b83d0240702283903e8cbdd1d9745265.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\24de759c141ec60a2d89352e581ccc47b83d0240702283903e8cbdd1d9745265.exe"C:\Users\Admin\AppData\Local\Temp\24de759c141ec60a2d89352e581ccc47b83d0240702283903e8cbdd1d9745265.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/4360-39-0x0000000000490000-0x00000000004D8000-memory.dmp
memory/4360-40-0x0000000039870000-0x0000000039E14000-memory.dmp
memory/4360-50-0x000000003A510000-0x000000003A51A000-memory.dmp
memory/4360-49-0x000000003A440000-0x000000003A4D2000-memory.dmp
memory/4360-22-0x0000000077155000-0x0000000077156000-memory.dmp
memory/4360-35-0x0000000000490000-0x00000000016E4000-memory.dmp
memory/4360-37-0x00000000770B1000-0x00000000771D1000-memory.dmp
memory/4360-36-0x0000000000490000-0x00000000016E4000-memory.dmp
memory/4360-47-0x0000000071FA0000-0x0000000072750000-memory.dmp
memory/4360-38-0x0000000071FAE000-0x0000000071FAF000-memory.dmp
memory/4360-21-0x0000000077138000-0x0000000077139000-memory.dmp
memory/4360-41-0x00000000374C0000-0x000000003755C000-memory.dmp
memory/4360-42-0x0000000071FA0000-0x0000000072750000-memory.dmp
memory/4360-44-0x000000003A1C0000-0x000000003A382000-memory.dmp
memory/4360-45-0x000000003A390000-0x000000003A3E0000-memory.dmp
memory/4360-46-0x0000000071FAE000-0x0000000071FAF000-memory.dmp
memory/4696-20-0x0000000010004000-0x0000000010005000-memory.dmp
memory/4696-18-0x00000000770B1000-0x00000000771D1000-memory.dmp
memory/4696-19-0x00000000770B1000-0x00000000771D1000-memory.dmp