Analysis

  • max time kernel
    112s
  • max time network
    144s
  • 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 07:20

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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 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:632
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\HiHvTkZZ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1FEC.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4740
    • 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:4320

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp1FEC.tmp

    Filesize

    1KB

    MD5

    3f549c7ddfbc38f8c0f0fba113cda4a8

    SHA1

    22a783d635f0eeec973c1b0fe6264f65968bb2f9

    SHA256

    d4d1b9677272426c1657e726c9c99b4f73ce3b3db08a12b315e4e4e35d7f6028

    SHA512

    bcdd97889eabe8212654cf85e0645e8d65b958d524a79eef86fecd755e14ac2b61ac009bd404c8a7f830882257476ff3b82d3fff65491b4ba5e896efd9211e12

  • memory/632-132-0x0000000000DC0000-0x0000000000E8A000-memory.dmp

    Filesize

    808KB

  • memory/632-133-0x0000000005D50000-0x00000000062F4000-memory.dmp

    Filesize

    5.6MB

  • memory/632-134-0x0000000005840000-0x00000000058D2000-memory.dmp

    Filesize

    584KB

  • memory/632-135-0x00000000058E0000-0x000000000597C000-memory.dmp

    Filesize

    624KB

  • memory/632-136-0x0000000005A70000-0x0000000005A7A000-memory.dmp

    Filesize

    40KB

  • memory/4320-139-0x0000000000000000-mapping.dmp

  • memory/4320-140-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/4320-141-0x0000000006430000-0x0000000006496000-memory.dmp

    Filesize

    408KB

  • memory/4320-142-0x0000000006AC0000-0x0000000006B10000-memory.dmp

    Filesize

    320KB

  • memory/4740-137-0x0000000000000000-mapping.dmp