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Analysis

  • max time kernel
    132s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/02/2024, 01:45

General

  • Target

    859ab25dd3293afd3340bcf184ffde56.exe

  • Size

    1.3MB

  • MD5

    859ab25dd3293afd3340bcf184ffde56

  • SHA1

    bafb31af0c29dbfd048e99220c59e7d133c45aec

  • SHA256

    c9f4f657e5c919e79eb5eaae5b0ac38683497288f7671f843d5097bf8fe96bf4

  • SHA512

    882324787b8662f66de3d06ff5fbc53f216ef89dc81c4b0e9006fe0107050cc11b599fa4db1d45a4072741cb3032bc33e982166e32f7ce6a189afbac5340adaa

  • SSDEEP

    24576:NU6nWI0raIi1Vfch/9K/4PMavESaoWV/Nm/y12NhmSO:NUTIKaV1Vfm82MavzVyYY

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.carryfastagencies.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    jim$7257

Signatures

  • AgentTesla

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

  • AgentTesla payload 2 IoCs
  • 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.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • 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).

  • 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 4 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\859ab25dd3293afd3340bcf184ffde56.exe
    "C:\Users\Admin\AppData\Local\Temp\859ab25dd3293afd3340bcf184ffde56.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5036
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\JkzrgbeDyboeo" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFA3E.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1980
    • C:\Users\Admin\AppData\Local\Temp\859ab25dd3293afd3340bcf184ffde56.exe
      "C:\Users\Admin\AppData\Local\Temp\859ab25dd3293afd3340bcf184ffde56.exe"
      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:2456

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2456-17-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/2456-29-0x0000000005080000-0x0000000005090000-memory.dmp

    Filesize

    64KB

  • memory/2456-28-0x0000000006290000-0x00000000062E0000-memory.dmp

    Filesize

    320KB

  • memory/2456-26-0x0000000005080000-0x0000000005090000-memory.dmp

    Filesize

    64KB

  • memory/2456-25-0x0000000074980000-0x0000000075130000-memory.dmp

    Filesize

    7.7MB

  • memory/2456-23-0x0000000005D60000-0x0000000005DC6000-memory.dmp

    Filesize

    408KB

  • memory/2456-22-0x00000000050B0000-0x00000000050C8000-memory.dmp

    Filesize

    96KB

  • memory/2456-21-0x0000000005080000-0x0000000005090000-memory.dmp

    Filesize

    64KB

  • memory/2456-19-0x0000000074980000-0x0000000075130000-memory.dmp

    Filesize

    7.7MB

  • memory/5036-5-0x0000000005940000-0x000000000594A000-memory.dmp

    Filesize

    40KB

  • memory/5036-10-0x00000000086F0000-0x0000000008780000-memory.dmp

    Filesize

    576KB

  • memory/5036-11-0x000000000AE20000-0x000000000AE84000-memory.dmp

    Filesize

    400KB

  • memory/5036-9-0x00000000058F0000-0x0000000005900000-memory.dmp

    Filesize

    64KB

  • memory/5036-8-0x0000000074980000-0x0000000075130000-memory.dmp

    Filesize

    7.7MB

  • memory/5036-20-0x0000000074980000-0x0000000075130000-memory.dmp

    Filesize

    7.7MB

  • memory/5036-7-0x0000000006C40000-0x0000000006CDC000-memory.dmp

    Filesize

    624KB

  • memory/5036-6-0x0000000005EC0000-0x0000000005EDC000-memory.dmp

    Filesize

    112KB

  • memory/5036-1-0x0000000074980000-0x0000000075130000-memory.dmp

    Filesize

    7.7MB

  • memory/5036-4-0x00000000058F0000-0x0000000005900000-memory.dmp

    Filesize

    64KB

  • memory/5036-3-0x00000000059E0000-0x0000000005A72000-memory.dmp

    Filesize

    584KB

  • memory/5036-2-0x0000000005EF0000-0x0000000006494000-memory.dmp

    Filesize

    5.6MB

  • memory/5036-0-0x0000000000DF0000-0x0000000000F46000-memory.dmp

    Filesize

    1.3MB