Analysis

  • max time kernel
    70s
  • max time network
    57s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    04/01/2023, 07:04

General

  • Target

    63d8c6d5aa91ded15e59599571aff23a5713be59.exe

  • Size

    783KB

  • MD5

    9bd05e2bf750cef915157ceebf7478cb

  • SHA1

    63d8c6d5aa91ded15e59599571aff23a5713be59

  • SHA256

    9a925e5f7a296bce2b8c8a0f84fbc2eb25567569586e7deac35ae8290589eb08

  • SHA512

    7c1290b3ddacb7396412341b75645de045158d51c8f3b6af4b0e76efa587dace542faa0d794b041ae2b5d60e9a9aef37137b634421ba8f2967ee98a5a28e8b08

  • SSDEEP

    12288:G22ULyS1sOE7Gks45yfO/xIVulhbaL7ZemY:GoyS1sVGke6qol9aXZPY

Malware Config

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
  • 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 16 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⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:108
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\HiHvTkZZ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp84F9.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1756
    • 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:1712

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\tmp84F9.tmp

          Filesize

          1KB

          MD5

          6b0aee6bbd7b885ef4a799a4dbe2b935

          SHA1

          1c32f55f1fd6bed2478d3d9c9dc8d7afc1fb2e9a

          SHA256

          ce99076adb4321ebb0b71e6c16a6f8027e322614d31d82e982095ed2a7aa62e8

          SHA512

          c5f2e067ba3f98d6f6aeb236fd23be0a586969c3688d8357b73ba5d7a64b9c4f8dba3f1cc2ff3f5f86e54ea7dcd64a3eaa4ed88c8c7412e87f62928583b1460a

        • memory/108-57-0x0000000004FF0000-0x0000000005072000-memory.dmp

          Filesize

          520KB

        • memory/108-55-0x0000000075B41000-0x0000000075B43000-memory.dmp

          Filesize

          8KB

        • memory/108-54-0x0000000000050000-0x000000000011A000-memory.dmp

          Filesize

          808KB

        • memory/108-58-0x00000000040C0000-0x00000000040FA000-memory.dmp

          Filesize

          232KB

        • memory/108-56-0x0000000000500000-0x0000000000512000-memory.dmp

          Filesize

          72KB

        • memory/1712-62-0x0000000000400000-0x000000000043A000-memory.dmp

          Filesize

          232KB

        • memory/1712-61-0x0000000000400000-0x000000000043A000-memory.dmp

          Filesize

          232KB

        • memory/1712-64-0x0000000000400000-0x000000000043A000-memory.dmp

          Filesize

          232KB

        • memory/1712-65-0x0000000000400000-0x000000000043A000-memory.dmp

          Filesize

          232KB

        • memory/1712-66-0x0000000000400000-0x000000000043A000-memory.dmp

          Filesize

          232KB

        • memory/1712-69-0x0000000000400000-0x000000000043A000-memory.dmp

          Filesize

          232KB

        • memory/1712-71-0x0000000000400000-0x000000000043A000-memory.dmp

          Filesize

          232KB