Resubmissions
24/12/2022, 20:34
221224-zcnccsdg6t1024/12/2022, 00:27
221224-arzaqsce911023/12/2022, 23:33
221223-3jva2ace7v10Analysis
- max time kernel
110s - max time network
135s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
- submitted
23/12/2022, 23:33
General
- Target SecuriteInfo.com.Win64.RATX-gen.30948.8275.exe
- Size 1.1MB
- Sample221223-3jva2ace7v
- SHA256 6f05a91cd30498cf1bc9b2e0058f1e3caa18b401b77d0a83b71a6df845430716
Malware Config
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- UAC bypass 3 TTPs 1 IoCs
- Windows security bypass 2 TTPs 2 IoCs
- Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
- Looks for VMWare Tools registry key 2 TTPs 1 IoCs
- Sets service image path in registry 2 TTPs 1 IoCs
- Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Windows security modification 2 TTPs 3 IoCs
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Checks whether UAC is enabled 1 TTPs 2 IoCs
- Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious behavior: EnumeratesProcesses 5 IoCs
- Suspicious behavior: LoadsDriver 1 IoCs
- Suspicious use of AdjustPrivilegeToken 5 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 10 IoCs
- System policy modification 1 TTPs 1 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win64.RATX-gen.30948.8275.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win64.RATX-gen.30948.8275.exe"1⤵
- UAC bypass
- Windows security bypass
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Sets service image path in registry
- Checks BIOS information in registry
- Checks computer location settings
- Windows security modification
- Adds Run key to start application
- Checks whether UAC is enabled
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: LoadsDriver
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
-
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win64.RATX-gen.30948.8275.exe" -Force2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/2636-132-0x000001CB98350000-0x000001CB98470000-memory.dmp
memory/2636-133-0x00007FFE49A00000-0x00007FFE4A4C1000-memory.dmp
memory/2636-139-0x00007FFE49A00000-0x00007FFE4A4C1000-memory.dmp
memory/2784-135-0x0000029128220000-0x0000029128242000-memory.dmp
memory/2784-136-0x00007FFE49A00000-0x00007FFE4A4C1000-memory.dmp
memory/3464-137-0x0000000000400000-0x000000000042E000-memory.dmp
memory/3464-140-0x0000000005C30000-0x00000000061D4000-memory.dmp
memory/3464-141-0x00000000057D0000-0x000000000586C000-memory.dmp
memory/3464-142-0x00000000064E0000-0x0000000006546000-memory.dmp
memory/3464-143-0x0000000006EC0000-0x0000000006F52000-memory.dmp
memory/3464-144-0x00000000070E0000-0x00000000070EA000-memory.dmp
memory/3464-145-0x0000000007170000-0x00000000071C0000-memory.dmp