Analysis

  • max time kernel
    144s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    29/09/2021, 12:54

General

  • Target
    PO098765KJHGHJ.exe
  • Size 720KB
  • Sample210929-p4832afaa4
  • SHA256 d0f903248ef8d04bc3f51ec058656ffedc3c72beaf65c9142f4f1978c55829d9
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • agenttesla

C2
  • https://api.telegram.org/bot1335107831:AAGZPoo67JukV78LJI16BeQqy3whx-zI59g/sendDocument

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\PO098765KJHGHJ.exe
    "C:\Users\Admin\AppData\Local\Temp\PO098765KJHGHJ.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1128
    • 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:924

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/924-61-0x0000000000400000-0x000000000043C000-memory.dmp

        memory/924-63-0x0000000000400000-0x000000000043C000-memory.dmp

        memory/924-65-0x0000000004990000-0x0000000004991000-memory.dmp

        memory/924-66-0x0000000004991000-0x0000000004992000-memory.dmp

        memory/1128-54-0x0000000000DE0000-0x0000000000DE1000-memory.dmp

        memory/1128-56-0x0000000004CF0000-0x0000000004CF1000-memory.dmp

        memory/1128-57-0x0000000000390000-0x00000000003A3000-memory.dmp

        memory/1128-58-0x0000000007DF0000-0x0000000007E5C000-memory.dmp

        memory/1128-59-0x00000000003C0000-0x00000000003C2000-memory.dmp

        memory/1128-60-0x00000000005E0000-0x0000000000627000-memory.dmp