Analysis

  • max time kernel
    129s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 00:11

General

  • Target

    3454345665432_PDF.exe

  • Size

    453KB

  • MD5

    b6ad45078bf162c1023f1abe6f5c2ee6

  • SHA1

    24986c2c848710286f23dfbadffeb4cd5eda6648

  • SHA256

    51161728627b1ccdf0ad9b9228e0d0e1bdaecb11530c53dcc10df9f31ec2255f

  • SHA512

    929c2f81fc088dda6107892e7871653ce1b3f300f63a3e761791697e6e3b3e5f715e9b1357d6b6c71476d0c6bac063a80c826eae4453b1ee700fec4e64609cbf

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.ru
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    sample12

Signatures

  • AgentTesla

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

  • AgentTesla Payload 6 IoCs
  • 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
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3454345665432_PDF.exe
    "C:\Users\Admin\AppData\Local\Temp\3454345665432_PDF.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:864
    • C:\Users\Admin\AppData\Local\Temp\3454345665432_PDF.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1704

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/864-54-0x0000000000900000-0x0000000000978000-memory.dmp

    Filesize

    480KB

  • memory/864-55-0x00000000003E0000-0x00000000003EA000-memory.dmp

    Filesize

    40KB

  • memory/864-56-0x0000000004660000-0x00000000046C8000-memory.dmp

    Filesize

    416KB

  • memory/864-57-0x0000000001FE0000-0x000000000202C000-memory.dmp

    Filesize

    304KB

  • memory/1704-58-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/1704-59-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/1704-61-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/1704-62-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/1704-63-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/1704-64-0x000000000044761E-mapping.dmp

  • memory/1704-66-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/1704-68-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/1704-69-0x00000000755A1000-0x00000000755A3000-memory.dmp

    Filesize

    8KB