Analysis
- max time kernel
125s - max time network
142s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
07/10/2024, 20:40
General
- Target a3939099773cda5b2c94a6f1061ffa19.exe
- Size 747KB
- Sample241007-zfwsxasgrm
- SHA256 178ebc7a9fb6e2a0b5c0da522572f14ff56fa50e60507d552940256dbe596645
Malware Config
Extracted
-
vipkeylogger
-
https://api.telegram.org/bot7207203688:AAH7zD-WPsi2BXK6KyZWdSEeTTm6Kjd9c5o/sendMessage?chat_id=1193226784
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
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- 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 4 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\a3939099773cda5b2c94a6f1061ffa19.exe"C:\Users\Admin\AppData\Local\Temp\a3939099773cda5b2c94a6f1061ffa19.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- 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\qggKEJlcsFa.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\qggKEJlcsFa" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAB92.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
-
-
C:\Users\Admin\AppData\Local\Temp\a3939099773cda5b2c94a6f1061ffa19.exe"C:\Users\Admin\AppData\Local\Temp\a3939099773cda5b2c94a6f1061ffa19.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_tt4l4qiv.nxe.ps1
tmpAB92.tmp
memory/2228-67-0x0000000075350000-0x0000000075B00000-memory.dmp
memory/2228-66-0x0000000007070000-0x000000000759C000-memory.dmp
memory/2228-65-0x00000000067F0000-0x0000000006840000-memory.dmp
memory/2228-64-0x0000000006970000-0x0000000006B32000-memory.dmp
memory/2228-26-0x0000000075350000-0x0000000075B00000-memory.dmp
memory/2228-21-0x0000000000400000-0x000000000044C000-memory.dmp
memory/2352-33-0x00000000061E0000-0x0000000006534000-memory.dmp
memory/2352-40-0x0000000006DD0000-0x0000000006E02000-memory.dmp
memory/2352-63-0x0000000075350000-0x0000000075B00000-memory.dmp
memory/2352-15-0x0000000005240000-0x0000000005276000-memory.dmp
memory/2352-16-0x0000000075350000-0x0000000075B00000-memory.dmp
memory/2352-17-0x00000000059D0000-0x0000000005FF8000-memory.dmp
memory/2352-18-0x0000000075350000-0x0000000075B00000-memory.dmp
memory/2352-61-0x0000000007E30000-0x0000000007E38000-memory.dmp
memory/2352-20-0x0000000075350000-0x0000000075B00000-memory.dmp
memory/2352-60-0x0000000007E50000-0x0000000007E6A000-memory.dmp
memory/2352-25-0x0000000006170000-0x00000000061D6000-memory.dmp
memory/2352-59-0x0000000007D50000-0x0000000007D64000-memory.dmp
memory/2352-58-0x0000000007D40000-0x0000000007D4E000-memory.dmp
memory/2352-57-0x0000000007D10000-0x0000000007D21000-memory.dmp
memory/2352-56-0x0000000007D90000-0x0000000007E26000-memory.dmp
memory/2352-24-0x0000000006100000-0x0000000006166000-memory.dmp
memory/2352-23-0x0000000005920000-0x0000000005942000-memory.dmp
memory/2352-38-0x00000000067D0000-0x00000000067EE000-memory.dmp
memory/2352-39-0x0000000006880000-0x00000000068CC000-memory.dmp
memory/2352-55-0x0000000007B80000-0x0000000007B8A000-memory.dmp
memory/2352-41-0x0000000071180000-0x00000000711CC000-memory.dmp
memory/2352-51-0x0000000006DB0000-0x0000000006DCE000-memory.dmp
memory/2352-52-0x00000000079D0000-0x0000000007A73000-memory.dmp
memory/2352-53-0x0000000008160000-0x00000000087DA000-memory.dmp
memory/2352-54-0x0000000007B10000-0x0000000007B2A000-memory.dmp
memory/4396-9-0x0000000075350000-0x0000000075B00000-memory.dmp
memory/4396-0-0x000000007535E000-0x000000007535F000-memory.dmp
memory/4396-5-0x0000000004DD0000-0x0000000004DDA000-memory.dmp
memory/4396-6-0x00000000050B0000-0x000000000514C000-memory.dmp
memory/4396-27-0x0000000075350000-0x0000000075B00000-memory.dmp
memory/4396-7-0x0000000005070000-0x0000000005088000-memory.dmp
memory/4396-8-0x000000007535E000-0x000000007535F000-memory.dmp
memory/4396-10-0x0000000006130000-0x00000000061BE000-memory.dmp
memory/4396-4-0x0000000075350000-0x0000000075B00000-memory.dmp
memory/4396-3-0x0000000004DE0000-0x0000000004E72000-memory.dmp
memory/4396-2-0x00000000052F0000-0x0000000005894000-memory.dmp
memory/4396-1-0x0000000000330000-0x00000000003F0000-memory.dmp