Analysis
- max time kernel
65s - max time network
41s - platform
windows7_x64 - resource
win7-20220812-en - resource tags
- submitted
14/11/2022, 02:39
General
- Target SecuriteInfo.com.Generic.ML.PUA.9673.15791.exe
- Size 671KB
- Sample221114-c5aweaed62
- SHA256 ff861cbd5dd1021564dbd050ee3cc084a7cc05d45295b3abd3ceb1cf020b7a9a
Malware Config
Extracted
-
agenttesla
-
https://api.telegram.org/bot5349655878:AAGnMhpzchQYN5RbZ88-w3gvA1SNsxWo7ts/
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
- Looks for VMWare Tools registry key 2 TTPs 1 IoCs
- Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- Adds Run key to start application 2 TTPs 1 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
- Suspicious behavior: EnumeratesProcesses 3 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 12 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Generic.ML.PUA.9673.15791.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Generic.ML.PUA.9673.15791.exe"1⤵
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- 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/1656-56-0x0000000000400000-0x000000000046C000-memory.dmp
memory/1656-59-0x0000000000400000-0x000000000046C000-memory.dmp
memory/1656-61-0x0000000000400000-0x000000000046C000-memory.dmp
memory/1656-62-0x0000000075BD1000-0x0000000075BD3000-memory.dmp
memory/1672-54-0x0000000000980000-0x0000000000A2C000-memory.dmp
memory/1672-55-0x00000000021C0000-0x000000000226A000-memory.dmp