Extracted

• • Target
    agent-windows-amd64-b566e61d.exe
  • Size 12.3MB
  • SHA256 c7e6d6b34b204dfafd8f0f4fc452b56ea840a2280ff5542ecbc971cc4c02b067
  • MD5 bdda86069104d979dfedafc63c3a6b39
  • SHA1 18208dbc8de4ea2a10a6f4dabd0a7210ceb9f4f7
  • SHA512 999f47b523f1f64330c4ddf1d829615c58ab19d09bdc79672b015001fede7f15e13ab410ceb754c23bc6668441df609aea9b3a8f41850b9712b64ff7770b7777
  • SSDEEP 98304:Sl7GHqtBHGB6E17YmbQ4KqrF3QE/669XLUUs2R/DdiHcMJ3Yf6T2:S4KtBcF84KqrppXDdKdw
  • TLSH
    T117D64947ED6A09E9C4ADD530C57692637B713C885F2123D72B60B6782F72BE06EB9304
  • MD5 SHA1 SHA512 SSDEEP TLSH

  Score

  10^/10

  costuradefense_evasiondiscoveryexecutionoverlordpackerpersistenceprivilege_escalationransomwareratspywaretrojan

  • Family: Overlord

    Overlord is an open-source Windows RAT written in Golang.

    ratoverlord

  • Modifies WinLogon for persistence

    persistence

  • Renames multiple (6114) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

    ransomware

  • Downloads MZ/PE file

  • Event Triggered Execution: AppInit DLLs

    Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.

    persistenceprivilege_escalation

  • Drops startup file

  • Executes dropped EXE

  • Loads dropped DLL

  • Adds Run key to start application

    persistence

  • Checks installed software on the system

    Looks up Uninstall key entries in the registry to enumerate software on the system.

    discovery

  • Looks up external IP address via web service

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Command and Scripting Interpreter: PowerShell

    Start PowerShell.

    execution

  • Drops file in System32 directory

  behavioral1