Analysis

  • max time kernel
    145s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    18/08/2020, 11:19

General

  • Target
    Tax_Invoice 965496112.exe
  • Size 1.0MB
  • Sample200818-9azblb4rhx
  • SHA256 254920e6788f4cb4975f08c5deef07e932f4a370a38c5197d7a4fb7846ea63ae
  • MD5 SHA1 SHA512

Malware Config

Signatures

  • AgentTesla

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

  • AgentTesla Payload 9 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 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\Tax_Invoice 965496112.exe
    "C:\Users\Admin\AppData\Local\Temp\Tax_Invoice 965496112.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1124
    • C:\Users\Admin\AppData\Local\Temp\Tax_Invoice 965496112.exe
      "C:\Users\Admin\AppData\Local\Temp\Tax_Invoice 965496112.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1320

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/1320-0-0x0000000000400000-0x00000000004D5000-memory.dmp

        memory/1320-2-0x0000000000400000-0x00000000004D5000-memory.dmp

        memory/1320-3-0x0000000000690000-0x00000000006F6000-memory.dmp

        memory/1320-4-0x0000000000242000-0x0000000000243000-memory.dmp

        memory/1320-5-0x00000000002E0000-0x0000000000340000-memory.dmp