General

  • Target

    lmlmdos.exe

  • Size

    23KB

  • Sample

    250208-j2ztpatqes

  • MD5

    5eb67cac2f9ef8a548ba327896909cda

  • SHA1

    b8f3612f2d00c581387b02a615ad178874b51329

  • SHA256

    f5c542679e18756fcaaf434a1df9ecee261c8fa6788b75dc64c458e4eef15f2d

  • SHA512

    40665518a5451f7bd86ca1e3ad58cec178566c0f45fde647e76c2bb8d81611ca61fe1974cb97988065239005ca63fc9de0c449d45357ee90a8a99ccd30a5415f

  • SSDEEP

    384:XweXCQIreJig/8Z7SS1fEBpng6tgL2IBPZVmRvR6JZlbw8hqIusZzZQy:oLq411eRpcnuI

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

3skr.uncofig.com:9999

Mutex

052a8691abcf06ff30b5f4c68922a91f

Attributes
  • reg_key

    052a8691abcf06ff30b5f4c68922a91f

  • splitter

    |'|'|

Targets

    • Target

      lmlmdos.exe

    • Size

      23KB

    • MD5

      5eb67cac2f9ef8a548ba327896909cda

    • SHA1

      b8f3612f2d00c581387b02a615ad178874b51329

    • SHA256

      f5c542679e18756fcaaf434a1df9ecee261c8fa6788b75dc64c458e4eef15f2d

    • SHA512

      40665518a5451f7bd86ca1e3ad58cec178566c0f45fde647e76c2bb8d81611ca61fe1974cb97988065239005ca63fc9de0c449d45357ee90a8a99ccd30a5415f

    • SSDEEP

      384:XweXCQIreJig/8Z7SS1fEBpng6tgL2IBPZVmRvR6JZlbw8hqIusZzZQy:oLq411eRpcnuI

    • Njrat family

    • njRAT/Bladabindi

      Widely used RAT written in .NET.

    • Boot or Logon Autostart Execution: Active Setup

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

    • Downloads MZ/PE file

    • Modifies Windows Firewall

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Drops startup file

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Checks installed software on the system

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

    • Installs/modifies Browser Helper Object

      BHOs are DLL modules which act as plugins for Internet Explorer.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks