Analysis

  • max time kernel
    89s
  • max time network
    48s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 11:53

General

  • Target

    Qualification details.exe

  • Size

    582KB

  • MD5

    5c7d36f450111107aff25b1d090062c2

  • SHA1

    752870a941f6145c37a49992dbf1a6decfd2292f

  • SHA256

    5a2965c63c2c74a0e8d06008ead3a82354dfd319468074823d5224a63e1a5c52

  • SHA512

    2d8968fb0380755929c08794b963e8c3aed8729121ca95db6c4c5b34c74e3ec8407a3bb31ac7d49b2a8b0367f7b0994f14d59da52b0912458a8699cf7984825c

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.1and1.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    $Hari@prasad%2020

Signatures

  • AgentTesla

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

  • AgentTesla Payload 6 IoCs
  • ReZer0 packer 1 IoCs

    Detects ReZer0, a packer with multiple versions used in various campaigns.

  • 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Qualification details.exe
    "C:\Users\Admin\AppData\Local\Temp\Qualification details.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1992
    • C:\Users\Admin\AppData\Local\Temp\Qualification details.exe
      "{path}"
      2⤵
        PID:952
      • C:\Users\Admin\AppData\Local\Temp\Qualification details.exe
        "{path}"
        2⤵
          PID:1384
        • C:\Users\Admin\AppData\Local\Temp\Qualification details.exe
          "{path}"
          2⤵
          • Accesses Microsoft Outlook profiles
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • outlook_office_path
          • outlook_win_path
          PID:1232

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/1232-58-0x0000000000400000-0x0000000000452000-memory.dmp

        Filesize

        328KB

      • memory/1232-59-0x0000000000400000-0x0000000000452000-memory.dmp

        Filesize

        328KB

      • memory/1232-61-0x0000000000400000-0x0000000000452000-memory.dmp

        Filesize

        328KB

      • memory/1232-62-0x0000000000400000-0x0000000000452000-memory.dmp

        Filesize

        328KB

      • memory/1232-63-0x0000000000400000-0x0000000000452000-memory.dmp

        Filesize

        328KB

      • memory/1232-64-0x000000000044C82E-mapping.dmp

      • memory/1232-66-0x0000000000400000-0x0000000000452000-memory.dmp

        Filesize

        328KB

      • memory/1232-68-0x0000000000400000-0x0000000000452000-memory.dmp

        Filesize

        328KB

      • memory/1992-54-0x0000000000110000-0x00000000001A8000-memory.dmp

        Filesize

        608KB

      • memory/1992-55-0x0000000075DB1000-0x0000000075DB3000-memory.dmp

        Filesize

        8KB

      • memory/1992-56-0x00000000005A0000-0x00000000005A8000-memory.dmp

        Filesize

        32KB

      • memory/1992-57-0x0000000001F20000-0x0000000001F78000-memory.dmp

        Filesize

        352KB