Analysis

  • max time kernel
    149s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-11-2022 09:24

General

  • Target

    a6cb24ec48c182bfa461e9a8a07bf66de2ded535473b5e5e5c6abca513132197.exe

  • Size

    1013KB

  • MD5

    a8cf327f63f544a6af4510fa03f74ccd

  • SHA1

    88a50f86cce5e13908926255fed532037831e389

  • SHA256

    a6cb24ec48c182bfa461e9a8a07bf66de2ded535473b5e5e5c6abca513132197

  • SHA512

    bf22da3f713be75aa0f8cc3a75ed24b982b4dd552080e961ed7d206b604417e9109a03511d7fa3044a6a90d1fd68414e20d198a632e2e7e25a29b6ef20666ebd

  • SSDEEP

    12288:nGFXPgj5yV2DFFXQeqwYX1XpgztJdszAcBoTCovmUCSFkgO/g7dAk+ude/icqchC:n4gWqQeSrWpV+otvmazO/gBAn

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    server122.web-hosting.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    OJZg,yx3yFHQ

Signatures

  • AgentTesla

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

  • AgentTesla payload 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
  • 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\a6cb24ec48c182bfa461e9a8a07bf66de2ded535473b5e5e5c6abca513132197.exe
    "C:\Users\Admin\AppData\Local\Temp\a6cb24ec48c182bfa461e9a8a07bf66de2ded535473b5e5e5c6abca513132197.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3108
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\APXlexmRNedQ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4C27.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4616
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:4624

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp4C27.tmp

    Filesize

    1KB

    MD5

    6b7cfcaee824b2c63d82d97010eb33f7

    SHA1

    8a9325559ae4b132201a9f2339c78ab5a490fc21

    SHA256

    77854836f388231423efee390b963d5b460ca768e739f7ece7653448a4b8cef2

    SHA512

    ad00a1b1f4e00aab38b5b40721b75075b9ae6f7e0f55921ca95ad9eea021050d4e2a374ce3d1acf54006e5a22e22ffa91a038482e12d8100413b5a488b2fe6c8

  • memory/3108-132-0x00000000004D0000-0x00000000005D2000-memory.dmp

    Filesize

    1.0MB

  • memory/3108-133-0x0000000004F10000-0x0000000004FAC000-memory.dmp

    Filesize

    624KB

  • memory/3108-134-0x0000000005610000-0x0000000005BB4000-memory.dmp

    Filesize

    5.6MB

  • memory/3108-135-0x0000000005060000-0x00000000050F2000-memory.dmp

    Filesize

    584KB

  • memory/3108-136-0x0000000005010000-0x000000000501A000-memory.dmp

    Filesize

    40KB

  • memory/3108-137-0x0000000005280000-0x00000000052D6000-memory.dmp

    Filesize

    344KB

  • memory/4616-138-0x0000000000000000-mapping.dmp

  • memory/4624-140-0x0000000000000000-mapping.dmp

  • memory/4624-141-0x0000000000400000-0x000000000045A000-memory.dmp

    Filesize

    360KB

  • memory/4624-142-0x0000000005E80000-0x0000000005EE6000-memory.dmp

    Filesize

    408KB

  • memory/4624-143-0x00000000065C0000-0x0000000006610000-memory.dmp

    Filesize

    320KB