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Analysis

  • max time kernel
    56s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    05/01/2023, 13:41

General

  • Target

    395b72299c5bf7155600b796385d06839c60239abd8ac93dc3383100bd75dca2.exe

  • Size

    846KB

  • MD5

    c68a796a0096cb46db8fb3e8ad120e6c

  • SHA1

    9ecf7ea3b8164f2c428e652f67c5cc2f13b854a6

  • SHA256

    395b72299c5bf7155600b796385d06839c60239abd8ac93dc3383100bd75dca2

  • SHA512

    cc346b6b3819e77d7747bf60646ad2b8222fa3ea01f5b9e0e299faf088ff3740d7ff62f7f07188960a331739130697b5582bd135ee615894cf34bdef2c81f10b

  • SSDEEP

    12288:ZsoQgKZ/nXt7virmWhlGLaQYI4glQ1ivb+jnHAbzeSZ5qTkXoXyD9dmLw5qgls2T:Zi9begbzdZ5Cm2yDDSwUYaO

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.crownoffice.xyz
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    GRACEoverflow123@

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 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Creates scheduled task(s) 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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\395b72299c5bf7155600b796385d06839c60239abd8ac93dc3383100bd75dca2.exe
    "C:\Users\Admin\AppData\Local\Temp\395b72299c5bf7155600b796385d06839c60239abd8ac93dc3383100bd75dca2.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:852
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\JVQskRqUDiJgyn.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1352
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\JVQskRqUDiJgyn" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA861.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:324
    • C:\Users\Admin\AppData\Local\Temp\395b72299c5bf7155600b796385d06839c60239abd8ac93dc3383100bd75dca2.exe
      "C:\Users\Admin\AppData\Local\Temp\395b72299c5bf7155600b796385d06839c60239abd8ac93dc3383100bd75dca2.exe"
      2⤵
        PID:936
      • C:\Users\Admin\AppData\Local\Temp\395b72299c5bf7155600b796385d06839c60239abd8ac93dc3383100bd75dca2.exe
        "C:\Users\Admin\AppData\Local\Temp\395b72299c5bf7155600b796385d06839c60239abd8ac93dc3383100bd75dca2.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
        PID:604

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmpA861.tmp

      Filesize

      1KB

      MD5

      54454c7888eba72fa753ca43890b27ec

      SHA1

      db5fb195dbd8590d3751c552fab61e849bc8449a

      SHA256

      c93a225c9af506a1cc8ca4d0bbdc86903d202db4ef2a503653117fa1e42e2147

      SHA512

      8234ead4f3fa9974299925002048aa9fadd058d9a6b375297c49c0319fd9979f3a44bdf36d8bafec0807fa33d6abfb0585a0d4f36fced470bb343e4eb96fdf98

    • memory/604-68-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

    • memory/604-74-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

    • memory/604-72-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

    • memory/604-69-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

    • memory/604-64-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

    • memory/604-67-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

    • memory/604-65-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

    • memory/852-58-0x0000000005DF0000-0x0000000005E7E000-memory.dmp

      Filesize

      568KB

    • memory/852-63-0x0000000007F00000-0x0000000007F54000-memory.dmp

      Filesize

      336KB

    • memory/852-54-0x0000000001270000-0x000000000134A000-memory.dmp

      Filesize

      872KB

    • memory/852-57-0x00000000005C0000-0x00000000005CE000-memory.dmp

      Filesize

      56KB

    • memory/852-56-0x00000000004D0000-0x00000000004E6000-memory.dmp

      Filesize

      88KB

    • memory/852-55-0x0000000075FF1000-0x0000000075FF3000-memory.dmp

      Filesize

      8KB

    • memory/1352-76-0x000000006F150000-0x000000006F6FB000-memory.dmp

      Filesize

      5.7MB

    • memory/1352-77-0x000000006F150000-0x000000006F6FB000-memory.dmp

      Filesize

      5.7MB