Analysis

  • max time kernel
    120s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    21/05/2024, 01:58

General

  • Target

    scan0085..exe

  • Size

    731KB

  • MD5

    9c5cf8df3c25ba48acfae10528a0289e

  • SHA1

    d0185f4e2b1796862d291fe2fe781f02a18af85b

  • SHA256

    48d1ff7448d143804637331fbdd977a19fce92f578c6cba71a6593162da4a0cb

  • SHA512

    78b801a455d29b08c03ea6cecc919907eef15ae6bd2088b05c2d5c21e838fc60bb64ca5d841642c17e3812b239f3b602980024522b84529d46fd3e40608afba8

  • SSDEEP

    12288:4WET/mr9KGPuvBFYsXjje3A3hmcY+zoxTmEJJf4l1ITkdUKaeEozOkR:4WtvuJFZXe3AAiS7Jx49bV

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • 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.

  • 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).

  • 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\scan0085..exe
    "C:\Users\Admin\AppData\Local\Temp\scan0085..exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2380
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\scan0085..exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2512
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ayybCeIBnYVSQ.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2768
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ayybCeIBnYVSQ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA45A.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2652
    • C:\Users\Admin\AppData\Local\Temp\scan0085..exe
      "C:\Users\Admin\AppData\Local\Temp\scan0085..exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2544

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\tmpA45A.tmp

          Filesize

          1KB

          MD5

          8f0050ad29af5416c835491d3ef569e5

          SHA1

          c2f86ab47a44fe438b2f9ab969efce573276ce47

          SHA256

          14c1ee7abb6997084851395df2e3b864706db05d20018368057fbdddd78323bf

          SHA512

          25d4841a6881fd128b524d7f5600862dc184d707c72f816bb36ad1afb67e3c0c360145df95472a1f7220e249a92c2afa7ea7c6b40bcec2887129524316cabe63

        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\WW7DVRYYDK8SIQOKJ7IT.temp

          Filesize

          7KB

          MD5

          53fbf63df11606df662597cbc123d76e

          SHA1

          982b9db2c2253a551787fb8aa0ab91ddfc86238d

          SHA256

          0296fea8bdec842b3db29034c3c4ad5d5519d3d78c89599abdbbb565e0e59a6a

          SHA512

          5002906a91cd444c8af2eed5a50c5357a5cdf00c514447499574eb12c3b9c4ffb718a510bf2bcce015308428440df810cf7ee5a1f1a14bcbd4a06efa65506e59

        • memory/2380-4-0x0000000000320000-0x000000000032C000-memory.dmp

          Filesize

          48KB

        • memory/2380-31-0x0000000074860000-0x0000000074F4E000-memory.dmp

          Filesize

          6.9MB

        • memory/2380-0-0x000000007486E000-0x000000007486F000-memory.dmp

          Filesize

          4KB

        • memory/2380-5-0x00000000004A0000-0x00000000004B0000-memory.dmp

          Filesize

          64KB

        • memory/2380-6-0x0000000000670000-0x00000000006F4000-memory.dmp

          Filesize

          528KB

        • memory/2380-2-0x0000000074860000-0x0000000074F4E000-memory.dmp

          Filesize

          6.9MB

        • memory/2380-1-0x0000000000150000-0x000000000020A000-memory.dmp

          Filesize

          744KB

        • memory/2380-3-0x00000000004F0000-0x0000000000512000-memory.dmp

          Filesize

          136KB

        • memory/2544-19-0x0000000000400000-0x0000000000442000-memory.dmp

          Filesize

          264KB

        • memory/2544-30-0x0000000000400000-0x0000000000442000-memory.dmp

          Filesize

          264KB

        • memory/2544-29-0x0000000000400000-0x0000000000442000-memory.dmp

          Filesize

          264KB

        • memory/2544-25-0x0000000000400000-0x0000000000442000-memory.dmp

          Filesize

          264KB

        • memory/2544-23-0x0000000000400000-0x0000000000442000-memory.dmp

          Filesize

          264KB

        • memory/2544-21-0x0000000000400000-0x0000000000442000-memory.dmp

          Filesize

          264KB

        • memory/2544-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          Filesize

          4KB

        • memory/2544-28-0x0000000000400000-0x0000000000442000-memory.dmp

          Filesize

          264KB