Analysis

  • max time kernel
    43s
  • max time network
    141s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    17/03/2023, 09:21

General

  • Target
    0e62cc35e2e3e587f0ccba39e1cb502e.exe
  • Size 3.8MB
  • Sample230317-lbbqaafd43
  • SHA256 462b121f72bc42fcefcfc67174e4de53083b977458c7ed3d4009eec6bddd3f1b
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • agenttesla

C2
  • https://api.telegram.org/bot6186081135:AAE-pyeAPznTgw_kOutx39khc9POE425kWU/

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • 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 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 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.

  • 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 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0e62cc35e2e3e587f0ccba39e1cb502e.exe
    "C:\Users\Admin\AppData\Local\Temp\0e62cc35e2e3e587f0ccba39e1cb502e.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1076
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1992
    • C:\Users\Admin\AppData\Local\Temp\0e62cc35e2e3e587f0ccba39e1cb502e.exe
      C:\Users\Admin\AppData\Local\Temp\0e62cc35e2e3e587f0ccba39e1cb502e.exe
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:1728

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/1076-62-0x00000000025C0000-0x0000000002600000-memory.dmp

        memory/1076-55-0x0000000004CA0000-0x0000000004DF6000-memory.dmp

        memory/1076-56-0x00000000025C0000-0x0000000002600000-memory.dmp

        memory/1076-57-0x0000000004670000-0x0000000004702000-memory.dmp

        memory/1076-54-0x0000000000960000-0x0000000000D28000-memory.dmp

        memory/1728-70-0x0000000000400000-0x0000000000430000-memory.dmp

        memory/1728-74-0x0000000000400000-0x0000000000430000-memory.dmp

        memory/1728-96-0x0000000005100000-0x0000000005140000-memory.dmp

        memory/1728-77-0x0000000005100000-0x0000000005140000-memory.dmp

        memory/1728-76-0x0000000000400000-0x0000000000430000-memory.dmp

        memory/1728-67-0x0000000000400000-0x0000000000430000-memory.dmp

        memory/1728-68-0x0000000000400000-0x0000000000430000-memory.dmp

        memory/1728-69-0x0000000000400000-0x0000000000430000-memory.dmp

        memory/1728-71-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        memory/1728-72-0x0000000000400000-0x0000000000430000-memory.dmp

        memory/1992-65-0x00000000021D0000-0x0000000002210000-memory.dmp

        memory/1992-60-0x00000000021D0000-0x0000000002210000-memory.dmp

        memory/1992-61-0x00000000021D0000-0x0000000002210000-memory.dmp

        memory/1992-64-0x00000000021D0000-0x0000000002210000-memory.dmp

        memory/1992-63-0x00000000021D0000-0x0000000002210000-memory.dmp