Analysis

  • max time kernel
    90s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-01-2023 13:12

General

  • Target

    63d8c6d5aa91ded15e59599571aff23a5713be59.exe

  • Size

    783KB

  • MD5

    9bd05e2bf750cef915157ceebf7478cb

  • SHA1

    63d8c6d5aa91ded15e59599571aff23a5713be59

  • SHA256

    9a925e5f7a296bce2b8c8a0f84fbc2eb25567569586e7deac35ae8290589eb08

  • SHA512

    7c1290b3ddacb7396412341b75645de045158d51c8f3b6af4b0e76efa587dace542faa0d794b041ae2b5d60e9a9aef37137b634421ba8f2967ee98a5a28e8b08

  • SSDEEP

    12288:G22ULyS1sOE7Gks45yfO/xIVulhbaL7ZemY:GoyS1sVGke6qol9aXZPY

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.clipjoint.co.nz
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    melandloz64

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Drops file in Drivers directory 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\63d8c6d5aa91ded15e59599571aff23a5713be59.exe
    "C:\Users\Admin\AppData\Local\Temp\63d8c6d5aa91ded15e59599571aff23a5713be59.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2672
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\HiHvTkZZ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3BB1.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3752
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "{path}"
      2⤵
        PID:1728
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "{path}"
        2⤵
        • Drops file in Drivers directory
        • 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:3720

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp3BB1.tmp

      Filesize

      1KB

      MD5

      3f549c7ddfbc38f8c0f0fba113cda4a8

      SHA1

      22a783d635f0eeec973c1b0fe6264f65968bb2f9

      SHA256

      d4d1b9677272426c1657e726c9c99b4f73ce3b3db08a12b315e4e4e35d7f6028

      SHA512

      bcdd97889eabe8212654cf85e0645e8d65b958d524a79eef86fecd755e14ac2b61ac009bd404c8a7f830882257476ff3b82d3fff65491b4ba5e896efd9211e12

    • memory/2672-132-0x00000000000C0000-0x000000000018A000-memory.dmp

      Filesize

      808KB

    • memory/2672-133-0x0000000004F70000-0x0000000005514000-memory.dmp

      Filesize

      5.6MB

    • memory/2672-134-0x0000000004A60000-0x0000000004AF2000-memory.dmp

      Filesize

      584KB

    • memory/2672-135-0x0000000004B00000-0x0000000004B9C000-memory.dmp

      Filesize

      624KB

    • memory/2672-136-0x00000000049E0000-0x00000000049EA000-memory.dmp

      Filesize

      40KB

    • memory/3720-141-0x0000000000400000-0x000000000043A000-memory.dmp

      Filesize

      232KB

    • memory/3720-142-0x0000000006670000-0x00000000066D6000-memory.dmp

      Filesize

      408KB

    • memory/3720-143-0x0000000006C50000-0x0000000006CA0000-memory.dmp

      Filesize

      320KB