Resubmissions

21/01/2025, 10:15

250121-maa8ssykfs 10

21/01/2025, 09:11

250121-k55d1swlft 10

General

  • Target

    final.exe

  • Size

    30.0MB

  • Sample

    250121-k55d1swlft

  • MD5

    b99c03cd9b08cab0486408adda2ed578

  • SHA1

    7cc84c2d0f9bd4141eff8791a5aea694022eaa56

  • SHA256

    a65610a00b2d16c046d140cc4bd9e634e62b1de6367c496221b9631545b8736a

  • SHA512

    5195d12028cff6543663c54426da9dcbfd1df89e4a2fc7f208d5a60817b325ca3189820bf9b2da39fafc1e2515e9b5e97881aeff94f809160bede5678eae3f7f

  • SSDEEP

    786432:1VBx9Yidhz2W8A1YEA8o1QtIYa8DZcUTOl8fVGdO+TKPHmEakjN06tcDIx:1VBx9JaWfuskiIp61HF+TOHhakJ06tB

Malware Config

Targets

    • Target

      final.exe

    • Size

      30.0MB

    • MD5

      b99c03cd9b08cab0486408adda2ed578

    • SHA1

      7cc84c2d0f9bd4141eff8791a5aea694022eaa56

    • SHA256

      a65610a00b2d16c046d140cc4bd9e634e62b1de6367c496221b9631545b8736a

    • SHA512

      5195d12028cff6543663c54426da9dcbfd1df89e4a2fc7f208d5a60817b325ca3189820bf9b2da39fafc1e2515e9b5e97881aeff94f809160bede5678eae3f7f

    • SSDEEP

      786432:1VBx9Yidhz2W8A1YEA8o1QtIYa8DZcUTOl8fVGdO+TKPHmEakjN06tcDIx:1VBx9JaWfuskiIp61HF+TOHhakJ06tB

    • Modifies Windows Defender Real-time Protection settings

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Disables RegEdit via registry modification

    • Disables Task Manager via registry modification

    • Disables cmd.exe use via registry modification

    • Drops file in Drivers directory

    • Possible privilege escalation attempt

    • Drops startup file

    • Executes dropped EXE

    • Impair Defenses: Safe Mode Boot

    • Loads dropped DLL

    • Modifies file permissions

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Drops desktop.ini file(s)

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

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

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

    • Enumerates processes with tasklist

    • Hide Artifacts: Hidden Files and Directories

MITRE ATT&CK Enterprise v15

Tasks