Analysis
- max time kernel
125s - max time network
139s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
06/11/2024, 15:10
General
- Target 8feed4062b93ff232c8d624baf73699d1e25e2a745717d73ec648d498c44bc45.exe
- Size 776KB
- Sample241106-sj1spsshqq
- SHA256 8feed4062b93ff232c8d624baf73699d1e25e2a745717d73ec648d498c44bc45
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.tksteels.com
-
Port
587
-
Username
-
Password
24eatkpr$
Extracted
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vipkeylogger
-
Protocol
smtp
-
Host
mail.tksteels.com
-
Port
587
-
Username
-
Password
24eatkpr$
-
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.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- 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 9 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\8feed4062b93ff232c8d624baf73699d1e25e2a745717d73ec648d498c44bc45.exe"C:\Users\Admin\AppData\Local\Temp\8feed4062b93ff232c8d624baf73699d1e25e2a745717d73ec648d498c44bc45.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
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
-
-
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
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\mZLKvoVOr" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFCFD.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
-
-
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
powershell.exe.log
StartupProfileData-NonInteractive
__PSScriptPolicyTest_ppkamrms.mcj.ps1
tmpFCFD.tmp
memory/1804-45-0x0000000074C90000-0x0000000075440000-memory.dmp
memory/1804-78-0x0000000007130000-0x0000000007141000-memory.dmp
memory/1804-88-0x0000000074C90000-0x0000000075440000-memory.dmp
memory/1804-50-0x0000000006180000-0x00000000061CC000-memory.dmp
memory/1804-81-0x0000000007270000-0x000000000728A000-memory.dmp
memory/1804-80-0x0000000007170000-0x0000000007184000-memory.dmp
memory/1804-79-0x0000000007160000-0x000000000716E000-memory.dmp
memory/1804-15-0x00000000022E0000-0x0000000002316000-memory.dmp
memory/1804-16-0x0000000004EC0000-0x00000000054E8000-memory.dmp
memory/1804-17-0x0000000074C90000-0x0000000075440000-memory.dmp
memory/1804-18-0x0000000074C90000-0x0000000075440000-memory.dmp
memory/1804-20-0x00000000054F0000-0x0000000005556000-memory.dmp
memory/1804-19-0x0000000004C60000-0x0000000004C82000-memory.dmp
memory/1804-21-0x00000000055D0000-0x0000000005636000-memory.dmp
memory/1804-77-0x00000000071B0000-0x0000000007246000-memory.dmp
memory/1804-49-0x0000000005C10000-0x0000000005C2E000-memory.dmp
memory/1804-76-0x0000000006FA0000-0x0000000006FAA000-memory.dmp
memory/1804-26-0x0000000005640000-0x0000000005994000-memory.dmp
memory/1804-64-0x0000000007590000-0x0000000007C0A000-memory.dmp
memory/1804-65-0x0000000006F30000-0x0000000006F4A000-memory.dmp
memory/1804-63-0x0000000006E60000-0x0000000006F03000-memory.dmp
memory/1804-62-0x00000000061D0000-0x00000000061EE000-memory.dmp
memory/1804-51-0x0000000006E20000-0x0000000006E52000-memory.dmp
memory/1804-52-0x0000000075520000-0x000000007556C000-memory.dmp
memory/1804-82-0x0000000007250000-0x0000000007258000-memory.dmp
memory/2220-22-0x0000000074C90000-0x0000000075440000-memory.dmp
memory/2220-89-0x0000000074C90000-0x0000000075440000-memory.dmp
memory/2220-66-0x0000000075520000-0x000000007556C000-memory.dmp
memory/2220-25-0x0000000074C90000-0x0000000075440000-memory.dmp
memory/2220-23-0x0000000074C90000-0x0000000075440000-memory.dmp
memory/2428-92-0x0000000007170000-0x000000000769C000-memory.dmp
memory/2428-46-0x0000000000400000-0x0000000000448000-memory.dmp
memory/2428-91-0x0000000006910000-0x0000000006960000-memory.dmp
memory/2428-90-0x0000000006A70000-0x0000000006C32000-memory.dmp
memory/2688-10-0x0000000004E00000-0x0000000004E8C000-memory.dmp
memory/2688-48-0x0000000074C90000-0x0000000075440000-memory.dmp
memory/2688-9-0x0000000074C90000-0x0000000075440000-memory.dmp
memory/2688-8-0x0000000074C9E000-0x0000000074C9F000-memory.dmp
memory/2688-7-0x0000000005850000-0x000000000586E000-memory.dmp
memory/2688-2-0x0000000005960000-0x0000000005F04000-memory.dmp
memory/2688-1-0x0000000000970000-0x0000000000A36000-memory.dmp
memory/2688-6-0x00000000056B0000-0x000000000574C000-memory.dmp
memory/2688-4-0x0000000005430000-0x000000000543A000-memory.dmp
memory/2688-3-0x0000000005450000-0x00000000054E2000-memory.dmp
memory/2688-0-0x0000000074C9E000-0x0000000074C9F000-memory.dmp
memory/2688-5-0x0000000074C90000-0x0000000075440000-memory.dmp