General

  • Target
    nikkeminiloader_aq84jigzveb.wg.intl.exe
  • Size 9.0MB
  • Sample260712-ta9vpacw7k
  • SHA256 f644e5c0ebeeca10069d5cf0c68af17240c9894d95923bc287a7bdd36b9280fe
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      nikkeminiloader_aq84jigzveb.wg.intl.exe
    • Size 9.0MB
    • SHA256 f644e5c0ebeeca10069d5cf0c68af17240c9894d95923bc287a7bdd36b9280fe
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Drops file in Drivers directory

    • Adds Run key to start application

    • Enumerates connected drives

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

    • Writes to the Master Boot Record (MBR)

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

    • Checks computer location settings

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

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Target
      $PLUGINSDIR/NSISPlugin.dll
    • Size 1.0MB
    • SHA256 1b9a09720ab5f6fed43d366cdf1d314b15e29e4eeabefdc528bf4053a0c1b0ef
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Boot or Logon Autostart Execution: Active Setup

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

    • Enumerates connected drives

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

    • Target
      nikkeminiloader.exe
    • Size 5.1MB
    • SHA256 ba944005a99ea940ae08b53374291b78263f61cda594840a48a59b037c266da6
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    6/10
    • Enumerates connected drives

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

    • Target
      tiny_dl/VersionService.exe
    • Size 10.3MB
    • SHA256 b00b12163469e0de8ff5a95edf53af3dfdcd04a13d55602b2709f72e1d93f189
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    • Target
      tiny_dl/VersionServiceProxy.dll
    • Size 1.8MB
    • SHA256 57834ebb0c81779e8a63140648dd3aa947a1f6f6494a43f666881df4014c7890
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Boot or Logon Autostart Execution: Active Setup

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

    • Enumerates connected drives

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

MITRE ATT&CK Enterprise v16

Tasks