Analysis

  • max time kernel
    136s
  • max time network
    138s
  • platform
    windows7_x64
  • resource
    win7-en
  • submitted
    16/09/2021, 04:31

General

  • Target
    gnLE3LyYFEOTSOh.exe
  • Size 424KB
  • Sample210916-e5dneacaa5
  • SHA256 8b36540feb94ebd4cc8347be22a49fd4cf480ca9b65678744197af3fb9814616
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    smtp

  • Host

    mail.priserveinfra.com

  • Port

    587

  • Password

    oppipl121019

Signatures

  • AgentTesla

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

  • AgentTesla Payload 3 IoCs
  • Drops file in Drivers directory 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\gnLE3LyYFEOTSOh.exe
    "C:\Users\Admin\AppData\Local\Temp\gnLE3LyYFEOTSOh.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1936
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
      • Drops file in Drivers directory
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:560

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/560-59-0x0000000000400000-0x000000000043C000-memory.dmp

        memory/560-61-0x0000000000400000-0x000000000043C000-memory.dmp

        memory/560-63-0x0000000004830000-0x0000000004831000-memory.dmp

        memory/560-64-0x0000000004831000-0x0000000004832000-memory.dmp

        memory/1936-53-0x00000000010F0000-0x00000000010F1000-memory.dmp

        memory/1936-55-0x0000000004E40000-0x0000000004E41000-memory.dmp

        memory/1936-56-0x00000000003F0000-0x00000000003F7000-memory.dmp

        memory/1936-57-0x0000000005040000-0x00000000050A3000-memory.dmp

        memory/1936-58-0x0000000000B40000-0x0000000000B78000-memory.dmp