Analysis

  • max time kernel
    138s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/01/2023, 19:01

General

  • Target

    59f96b6392f723136ccad74732829f34ff4b9466.exe

  • Size

    817KB

  • MD5

    525d3818a894e22a88f2fa98ed14f3a1

  • SHA1

    59f96b6392f723136ccad74732829f34ff4b9466

  • SHA256

    7466aa2d482d74a4da0d1772009319a1507da78580178d9b2560586e53f99b74

  • SHA512

    797ea3e75742bb4023cc52143b74eed20cbde8849391c38c4a99f7bcb98d3f6245f126d3ec5985d61185cc725a6a4d4f892e90e9bcd689f2695eb331b4ba69a2

  • SSDEEP

    12288:3MUgbiZU6XgScm6mTGL0r/HXYxAWO2DPpfhdCsbxlZhhu6Y+9HvDZEYV0zMpz17i:LPXgVSTGLq/XYxAWFv4uD0

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.qualitysolutions.co.in
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    9873335231

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 WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\59f96b6392f723136ccad74732829f34ff4b9466.exe
    "C:\Users\Admin\AppData\Local\Temp\59f96b6392f723136ccad74732829f34ff4b9466.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3228
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\IFblStagVvJI" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD8B1.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2436
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "{path}"
      2⤵
        PID:3404
      • 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
        • outlook_office_path
        • outlook_win_path
        PID:5028

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\tmpD8B1.tmp

            Filesize

            1KB

            MD5

            9e4750748228cb31612920ae7efd5614

            SHA1

            6a5e58cac2826f5ae2e275c8f0b8ae78bfa46337

            SHA256

            c5200646d0720f61745dc306a9fe12b44cd60151b4627f9c123c5df93b86e422

            SHA512

            b2eabaaaca7c0557c6e5aea1bfd0dae03cbac923c15e1a070b3abb6d52515017db9ba2ba03ed185687b03a09c3627e2a6e9b0f868b451c8775f5db3997da3763

          • memory/3228-132-0x00000000000C0000-0x0000000000192000-memory.dmp

            Filesize

            840KB

          • memory/3228-133-0x00000000051A0000-0x0000000005744000-memory.dmp

            Filesize

            5.6MB

          • memory/3228-134-0x0000000004B20000-0x0000000004BB2000-memory.dmp

            Filesize

            584KB

          • memory/3228-135-0x0000000004C90000-0x0000000004D2C000-memory.dmp

            Filesize

            624KB

          • memory/3228-136-0x0000000004BD0000-0x0000000004BDA000-memory.dmp

            Filesize

            40KB

          • memory/5028-141-0x0000000000400000-0x000000000043A000-memory.dmp

            Filesize

            232KB

          • memory/5028-142-0x0000000005AB0000-0x0000000005B16000-memory.dmp

            Filesize

            408KB

          • memory/5028-143-0x00000000060C0000-0x0000000006110000-memory.dmp

            Filesize

            320KB