Analysis
- max time kernel
93s - max time network
94s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
- submitted
06/10/2024, 01:01
General
- Target 151db88b9f1c5c2756961e29f92315334d24ee01e47ec548fb9e581098295feb.exe
- Size 796KB
- Sample241006-bdn4aasfjf
- SHA256 151db88b9f1c5c2756961e29f92315334d24ee01e47ec548fb9e581098295feb
Malware Config
Extracted
-
vipkeylogger
-
https://api.telegram.org/bot7781909828:AAGxf3G8mJh3__EDREqe-hOffvHxYbcsXBg/sendMessage?chat_id=2008065161
Signatures
- VIPKeylogger
VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.
- Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
- Disables Task Manager via registry modification
- 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).
- Program crash 1 IoCs
- System Location Discovery: System Language Discovery 1 TTPs 4 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 5 IoCs
- Suspicious behavior: RenamesItself 1 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\151db88b9f1c5c2756961e29f92315334d24ee01e47ec548fb9e581098295feb.exe"C:\Users\Admin\AppData\Local\Temp\151db88b9f1c5c2756961e29f92315334d24ee01e47ec548fb9e581098295feb.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\Roaming\LHTxZxNm.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\LHTxZxNm" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBD93.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
-
-
C:\Users\Admin\AppData\Local\Temp\151db88b9f1c5c2756961e29f92315334d24ee01e47ec548fb9e581098295feb.exe"C:\Users\Admin\AppData\Local\Temp\151db88b9f1c5c2756961e29f92315334d24ee01e47ec548fb9e581098295feb.exe"2⤵
- Accesses Microsoft Outlook profiles
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2228 -s 17643⤵
- Program crash
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2228 -ip 22281⤵
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
__PSScriptPolicyTest_pevomemz.cmx.ps1
tmpBD93.tmp
memory/208-28-0x0000000005430000-0x0000000005784000-memory.dmp
memory/208-17-0x0000000074B50000-0x0000000075300000-memory.dmp
memory/208-67-0x0000000074B50000-0x0000000075300000-memory.dmp
memory/208-64-0x00000000070A0000-0x00000000070A8000-memory.dmp
memory/208-63-0x00000000070C0000-0x00000000070DA000-memory.dmp
memory/208-62-0x0000000006FC0000-0x0000000006FD4000-memory.dmp
memory/208-61-0x0000000006FB0000-0x0000000006FBE000-memory.dmp
memory/208-60-0x0000000006F80000-0x0000000006F91000-memory.dmp
memory/208-59-0x0000000007000000-0x0000000007096000-memory.dmp
memory/208-15-0x0000000002170000-0x00000000021A6000-memory.dmp
memory/208-16-0x0000000074B50000-0x0000000075300000-memory.dmp
memory/208-58-0x0000000006DF0000-0x0000000006DFA000-memory.dmp
memory/208-19-0x0000000004C30000-0x0000000005258000-memory.dmp
memory/208-43-0x0000000070840000-0x000000007088C000-memory.dmp
memory/208-20-0x0000000074B50000-0x0000000075300000-memory.dmp
memory/208-57-0x0000000006D80000-0x0000000006D9A000-memory.dmp
memory/208-25-0x0000000004B50000-0x0000000004BB6000-memory.dmp
memory/208-26-0x0000000004BC0000-0x0000000004C26000-memory.dmp
memory/208-24-0x0000000004AB0000-0x0000000004AD2000-memory.dmp
memory/208-56-0x00000000073D0000-0x0000000007A4A000-memory.dmp
memory/208-54-0x0000000006A40000-0x0000000006AE3000-memory.dmp
memory/208-53-0x0000000006010000-0x000000000602E000-memory.dmp
memory/208-42-0x0000000006A00000-0x0000000006A32000-memory.dmp
memory/208-38-0x0000000005A40000-0x0000000005A5E000-memory.dmp
memory/208-39-0x0000000005AD0000-0x0000000005B1C000-memory.dmp
memory/1300-1-0x00000000000A0000-0x0000000000168000-memory.dmp
memory/1300-2-0x0000000005150000-0x00000000056F4000-memory.dmp
memory/1300-5-0x0000000074B50000-0x0000000075300000-memory.dmp
memory/1300-4-0x0000000004B50000-0x0000000004B5A000-memory.dmp
memory/1300-0-0x0000000074B5E000-0x0000000074B5F000-memory.dmp
memory/1300-3-0x0000000004BA0000-0x0000000004C32000-memory.dmp
memory/1300-6-0x0000000004E80000-0x0000000004F1C000-memory.dmp
memory/1300-27-0x0000000074B50000-0x0000000075300000-memory.dmp
memory/1300-7-0x0000000004E50000-0x0000000004E6A000-memory.dmp
memory/1300-8-0x0000000074B5E000-0x0000000074B5F000-memory.dmp
memory/1300-10-0x0000000007990000-0x0000000007A16000-memory.dmp
memory/1300-9-0x0000000074B50000-0x0000000075300000-memory.dmp
memory/2228-41-0x0000000006460000-0x00000000064B0000-memory.dmp
memory/2228-21-0x0000000000400000-0x0000000000444000-memory.dmp
memory/2228-55-0x0000000074B50000-0x0000000075300000-memory.dmp
memory/2228-40-0x0000000006630000-0x00000000067F2000-memory.dmp
memory/2228-23-0x0000000074B50000-0x0000000075300000-memory.dmp