Analysis
- max time kernel
148s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
05/11/2024, 04:18
General
- Target cf6800448bd20938d5e58be636dac9fd95ada3b8a2360a0e27672726d9c16f87.exe
- Size 993KB
- Sample241105-exekqsvfml
- SHA256 cf6800448bd20938d5e58be636dac9fd95ada3b8a2360a0e27672726d9c16f87
Malware Config
Extracted
-
vipkeylogger
-
Protocol
smtp
-
Host
cp1.virtualine.org
-
Port
587
-
Username
-
Password
7213575aceACE@@
-
Email to
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 2 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 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\cf6800448bd20938d5e58be636dac9fd95ada3b8a2360a0e27672726d9c16f87.exe"C:\Users\Admin\AppData\Local\Temp\cf6800448bd20938d5e58be636dac9fd95ada3b8a2360a0e27672726d9c16f87.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\cf6800448bd20938d5e58be636dac9fd95ada3b8a2360a0e27672726d9c16f87.exe"C:\Users\Admin\AppData\Local\Temp\cf6800448bd20938d5e58be636dac9fd95ada3b8a2360a0e27672726d9c16f87.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
nsb7D6E.tmp
nsc7F47.tmp
nsc7F47.tmp
nsc7F47.tmp
nsc7F47.tmp
nsc7F47.tmp
nsh7EC9.tmp
nsh7EC9.tmp
nsh7EC9.tmp
nsh7EC9.tmp
nsh7EC9.tmp
nsm7E4B.tmp
nsm7E4B.tmp
nsm7E4B.tmp
nsm7E4B.tmp
nss7FF4.tmp
nss7FF4.tmp
System.dll
memory/4452-567-0x0000000004A10000-0x000000000772C000-memory.dmp
memory/4452-568-0x0000000076F41000-0x0000000077061000-memory.dmp
memory/4452-569-0x0000000004A10000-0x000000000772C000-memory.dmp
memory/4452-570-0x0000000010004000-0x0000000010005000-memory.dmp
memory/4452-571-0x0000000004A10000-0x000000000772C000-memory.dmp
memory/4696-573-0x0000000000480000-0x00000000016D4000-memory.dmp
memory/4696-572-0x00000000016E0000-0x00000000043FC000-memory.dmp
memory/4696-574-0x0000000000480000-0x00000000004C8000-memory.dmp
memory/4696-575-0x0000000036CE0000-0x0000000037284000-memory.dmp
memory/4696-576-0x0000000036C10000-0x0000000036CAC000-memory.dmp
memory/4696-578-0x00000000016E0000-0x00000000043FC000-memory.dmp
memory/4696-579-0x0000000037A30000-0x0000000037BF2000-memory.dmp
memory/4696-580-0x0000000037C10000-0x0000000037C60000-memory.dmp
memory/4696-582-0x0000000037CE0000-0x0000000037D72000-memory.dmp
memory/4696-583-0x0000000037DD0000-0x0000000037DDA000-memory.dmp