Analysis

  • max time kernel
    143s
  • max time network
    168s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220310-en
  • submitted
    14-04-2022 12:41

General

  • Target

    95f681200dfbd3eaf68c085f87e87ddf786a725ab31211227327b8a9566a1bfb.exe

  • Size

    757KB

  • MD5

    dba310df7fa68c507ea725782f8498e7

  • SHA1

    e6594715dd314019785cfc40e609d65a7438a13c

  • SHA256

    95f681200dfbd3eaf68c085f87e87ddf786a725ab31211227327b8a9566a1bfb

  • SHA512

    c5a2acae1246ea0be0797af0a3bb7d97cf66c80046ce94652995c95826ff48e1d62856a4eab44101c5bb3010901764b206fffc3af35149211f6965c1cd242b2d

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    us2.smtp.mailhostbox.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    t$KMOPJ9

Signatures

  • AgentTesla

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

  • Meta Stealer Stealer

    Meta Stealer steals passwords stored in browsers, written in C++.

  • AgentTesla Payload 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\95f681200dfbd3eaf68c085f87e87ddf786a725ab31211227327b8a9566a1bfb.exe
    "C:\Users\Admin\AppData\Local\Temp\95f681200dfbd3eaf68c085f87e87ddf786a725ab31211227327b8a9566a1bfb.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2328
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\VncNkDrkxJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2DF2.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1608
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "{path}"
      2⤵
        PID:1764
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "{path}"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3084

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp2DF2.tmp

      Filesize

      1KB

      MD5

      0a69a32a458589fe87b33471b1b3bf07

      SHA1

      4c087c0bda8f6e01838e8761ff5c33bce4e5ffc8

      SHA256

      288c042fc4a255b868b76d3091638eda0d8bc940e673dc5a8a398e8704aad815

      SHA512

      03adb5cf5949168fd96b3715cbd56b064e1fb2f00142d419f94e5207b806d398877b316667ad5fd74424bea07ee89a1f92cd50f901ae5417a2ccf130fd09825b

    • memory/2328-134-0x0000000000310000-0x00000000003D4000-memory.dmp

      Filesize

      784KB

    • memory/2328-135-0x00000000097B0000-0x0000000009D54000-memory.dmp

      Filesize

      5.6MB

    • memory/2328-136-0x0000000004F20000-0x0000000004FB2000-memory.dmp

      Filesize

      584KB

    • memory/2328-137-0x0000000004EC0000-0x0000000004ECA000-memory.dmp

      Filesize

      40KB

    • memory/2328-138-0x0000000008730000-0x0000000008C5C000-memory.dmp

      Filesize

      5.2MB

    • memory/2328-139-0x00000000085E0000-0x000000000867C000-memory.dmp

      Filesize

      624KB

    • memory/3084-144-0x0000000000400000-0x000000000043C000-memory.dmp

      Filesize

      240KB

    • memory/3084-145-0x00000000060D0000-0x0000000006136000-memory.dmp

      Filesize

      408KB