Analysis
- max time kernel
118s - max time network
120s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
09/10/2024, 10:59
General
- Target Commercial_Invoice_Remittance_Copies_PDF.exe
- Size 852KB
- Sample241009-m3dvdsxdlf
- SHA256 94e9cd4c7125bdf859f682930ceaafc0d5177deeb16e4e2156ff677a01d80fcc
Malware Config
Extracted
-
vipkeylogger
-
https://api.telegram.org/bot7799499545:AAEerwdX3sXYjlnt9J5Vw428iYgRmabJfoY/sendMessage?chat_id=6595599138
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.
- 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 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 8 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Commercial_Invoice_Remittance_Copies_PDF.exe"C:\Users\Admin\AppData\Local\Temp\Commercial_Invoice_Remittance_Copies_PDF.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\ArvtDfKRFZd.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\ArvtDfKRFZd" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA354.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
-
-
C:\Users\Admin\AppData\Local\Temp\Commercial_Invoice_Remittance_Copies_PDF.exe"C:\Users\Admin\AppData\Local\Temp\Commercial_Invoice_Remittance_Copies_PDF.exe"2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\Commercial_Invoice_Remittance_Copies_PDF.exe"C:\Users\Admin\AppData\Local\Temp\Commercial_Invoice_Remittance_Copies_PDF.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
__PSScriptPolicyTest_ekcj5ath.mja.ps1
tmpA354.tmp
memory/2964-66-0x0000000074C90000-0x0000000075440000-memory.dmp
memory/2964-65-0x0000000006680000-0x00000000066D0000-memory.dmp
memory/2964-64-0x0000000006800000-0x00000000069C2000-memory.dmp
memory/2964-25-0x0000000074C90000-0x0000000075440000-memory.dmp
memory/2964-20-0x0000000000400000-0x0000000000448000-memory.dmp
memory/3900-58-0x0000000007630000-0x0000000007644000-memory.dmp
memory/3900-22-0x0000000005860000-0x00000000058C6000-memory.dmp
memory/3900-56-0x00000000075F0000-0x0000000007601000-memory.dmp
memory/3900-55-0x0000000007670000-0x0000000007706000-memory.dmp
memory/3900-15-0x0000000074C90000-0x0000000075440000-memory.dmp
memory/3900-53-0x00000000073F0000-0x000000000740A000-memory.dmp
memory/3900-16-0x0000000004B20000-0x0000000004B56000-memory.dmp
memory/3900-18-0x0000000074C90000-0x0000000075440000-memory.dmp
memory/3900-19-0x00000000051C0000-0x00000000057E8000-memory.dmp
memory/3900-59-0x0000000007730000-0x000000000774A000-memory.dmp
memory/3900-23-0x0000000005A80000-0x0000000005AE6000-memory.dmp
memory/3900-57-0x0000000007620000-0x000000000762E000-memory.dmp
memory/3900-26-0x0000000005AF0000-0x0000000005E44000-memory.dmp
memory/3900-54-0x0000000007460000-0x000000000746A000-memory.dmp
memory/3900-60-0x0000000007710000-0x0000000007718000-memory.dmp
memory/3900-63-0x0000000074C90000-0x0000000075440000-memory.dmp
memory/3900-21-0x0000000005000000-0x0000000005022000-memory.dmp
memory/3900-37-0x00000000060D0000-0x00000000060EE000-memory.dmp
memory/3900-38-0x0000000006100000-0x000000000614C000-memory.dmp
memory/3900-39-0x0000000007080000-0x00000000070B2000-memory.dmp
memory/3900-40-0x0000000075540000-0x000000007558C000-memory.dmp
memory/3900-50-0x0000000006680000-0x000000000669E000-memory.dmp
memory/3900-51-0x00000000072C0000-0x0000000007363000-memory.dmp
memory/3900-52-0x0000000007A30000-0x00000000080AA000-memory.dmp
memory/5016-10-0x000000000A600000-0x000000000A69C000-memory.dmp
memory/5016-27-0x0000000074C90000-0x0000000075440000-memory.dmp
memory/5016-0-0x0000000074C9E000-0x0000000074C9F000-memory.dmp
memory/5016-9-0x0000000006A90000-0x0000000006B1A000-memory.dmp
memory/5016-8-0x0000000074C90000-0x0000000075440000-memory.dmp
memory/5016-7-0x0000000074C9E000-0x0000000074C9F000-memory.dmp
memory/5016-6-0x0000000005A20000-0x0000000005A38000-memory.dmp
memory/5016-5-0x0000000005690000-0x000000000569A000-memory.dmp
memory/5016-4-0x0000000074C90000-0x0000000075440000-memory.dmp
memory/5016-3-0x00000000056C0000-0x0000000005752000-memory.dmp
memory/5016-2-0x0000000005C70000-0x0000000006214000-memory.dmp
memory/5016-1-0x0000000000C00000-0x0000000000CD8000-memory.dmp