Analysis
- max time kernel
117s - max time network
125s - platform
windows7_x64 - resource
win7-20240903-en - resource tags
- submitted
06/11/2024, 15:10
General
- Target 8feed4062b93ff232c8d624baf73699d1e25e2a745717d73ec648d498c44bc45.exe
- Size 776KB
- Sample241106-sj1spsshqq
- SHA256 8feed4062b93ff232c8d624baf73699d1e25e2a745717d73ec648d498c44bc45
Malware Config
Extracted
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vipkeylogger
-
Protocol
smtp
-
Host
mail.tksteels.com
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Port
587
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Username
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Password
24eatkpr$
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Email to
Signatures
- VIPKeylogger
VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.
- Vipkeylogger family
- Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
- 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 SetThreadContext 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 5 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 7 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- Suspicious use of WriteProcessMemory 21 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\8feed4062b93ff232c8d624baf73699d1e25e2a745717d73ec648d498c44bc45.exe"C:\Users\Admin\AppData\Local\Temp\8feed4062b93ff232c8d624baf73699d1e25e2a745717d73ec648d498c44bc45.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\8feed4062b93ff232c8d624baf73699d1e25e2a745717d73ec648d498c44bc45.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\mZLKvoVOr.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\mZLKvoVOr" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1758.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
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C:\Users\Admin\AppData\Local\Temp\8feed4062b93ff232c8d624baf73699d1e25e2a745717d73ec648d498c44bc45.exe"C:\Users\Admin\AppData\Local\Temp\8feed4062b93ff232c8d624baf73699d1e25e2a745717d73ec648d498c44bc45.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
-
Network
MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
2Credentials In Files
2Replay Monitor
Loading Replay Monitor...
Downloads
tmp1758.tmp
d93f411851d7c929.customDestinations-ms
memory/740-4-0x0000000074E5E000-0x0000000074E5F000-memory.dmp
memory/740-31-0x0000000074E50000-0x000000007553E000-memory.dmp
memory/740-0-0x0000000074E5E000-0x0000000074E5F000-memory.dmp
memory/740-5-0x0000000074E50000-0x000000007553E000-memory.dmp
memory/740-6-0x0000000000830000-0x00000000008BC000-memory.dmp
memory/740-2-0x0000000074E50000-0x000000007553E000-memory.dmp
memory/740-1-0x0000000000E80000-0x0000000000F46000-memory.dmp
memory/740-3-0x0000000000950000-0x000000000096E000-memory.dmp
memory/2936-19-0x0000000000400000-0x0000000000448000-memory.dmp
memory/2936-29-0x0000000000400000-0x0000000000448000-memory.dmp
memory/2936-32-0x0000000000400000-0x0000000000448000-memory.dmp
memory/2936-28-0x0000000000400000-0x0000000000448000-memory.dmp
memory/2936-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2936-25-0x0000000000400000-0x0000000000448000-memory.dmp
memory/2936-23-0x0000000000400000-0x0000000000448000-memory.dmp
memory/2936-21-0x0000000000400000-0x0000000000448000-memory.dmp