Analysis

  • max time kernel
    64s
  • max time network
    69s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    10/07/2020, 13:29

General

  • Target
    Contract.exe
  • Size 819KB
  • Sample200710-84g7fevete
  • SHA256 e47f1419ace154d1aa7057058e82c5cc21326f1e9502328588261cb31eb0a372
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    smtp

  • Host

    mail.kgroupindia.com

  • Port

    587

  • Password

    KgrP@764.@

Signatures

  • AgentTesla

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

  • AgentTesla Payload 3 IoCs
  • UPX packed file 3 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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 3 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Contract.exe
    "C:\Users\Admin\AppData\Local\Temp\Contract.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:284
    • C:\Users\Admin\AppData\Local\Temp\Contract.exe
      "C:\Users\Admin\AppData\Local\Temp\Contract.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:308

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/308-0-0x0000000000400000-0x00000000004A4000-memory.dmp

        memory/308-2-0x0000000000400000-0x00000000004A4000-memory.dmp

        memory/308-3-0x0000000000400000-0x00000000004A4000-memory.dmp

        memory/308-4-0x00000000003B0000-0x00000000003FC000-memory.dmp

        memory/308-5-0x0000000001E62000-0x0000000001E63000-memory.dmp

        memory/308-6-0x00000000002C0000-0x0000000000306000-memory.dmp