Analysis

  • max time kernel
    141s
  • max time network
    157s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    14/09/2021, 04:32

General

  • Target
    attached wire transfer slip.exe
  • Size 777KB
  • Sample210914-e5z7eaege4
  • SHA256 1948960143fb7d0e3c56678a5bd8d0baee4fa0c87d82b6dff5d7a3ec2280191e
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    smtp

  • Host

    us2.smtp.mailhostbox.com

  • Port

    587

  • Password

    @ThQZ(R3

Signatures

  • AgentTesla

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

  • AgentTesla Payload 3 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\attached wire transfer slip.exe
    "C:\Users\Admin\AppData\Local\Temp\attached wire transfer slip.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1652
    • C:\Users\Admin\AppData\Local\Temp\attached wire transfer slip.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:520

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/520-66-0x0000000000400000-0x000000000043C000-memory.dmp

        memory/520-68-0x0000000000400000-0x000000000043C000-memory.dmp

        memory/520-70-0x00000000005C0000-0x00000000005C1000-memory.dmp

        memory/520-71-0x00000000005C1000-0x00000000005C2000-memory.dmp

        memory/1652-60-0x00000000008A0000-0x00000000008A1000-memory.dmp

        memory/1652-62-0x0000000004B40000-0x0000000004B41000-memory.dmp

        memory/1652-63-0x0000000000380000-0x000000000038E000-memory.dmp

        memory/1652-64-0x00000000058E0000-0x0000000005956000-memory.dmp

        memory/1652-65-0x0000000004CB0000-0x0000000004CEA000-memory.dmp