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General

  • Target

    BootStrapper.exe

  • Size

    149KB

  • Sample

    240903-n775gaxcrf

  • MD5

    dd742c42283806d63458be56a64ea254

  • SHA1

    bb252ef14c278321b1a6f474a686e224269dd457

  • SHA256

    cf4afbbe58f7a6d7f1888b0a0e2da4f57da6d3ea329dc577c230b806f74aba26

  • SHA512

    7b3a2ca8518f5cd27de93733bf20958053fac4bcd00039f8f73979fcf8fc2e6393dcc7f10bed0971cac15d090375b7292ad9fcc425e29687b04f8b033b197121

  • SSDEEP

    3072:+czkitvo4BpYN/6mBPry8TXROLdW5m4mURp9OOGF0kmGwY:+A4NCmBPry/N2NOOInw

Malware Config

Targets

    • Target

      BootStrapper.exe

    • Size

      149KB

    • MD5

      dd742c42283806d63458be56a64ea254

    • SHA1

      bb252ef14c278321b1a6f474a686e224269dd457

    • SHA256

      cf4afbbe58f7a6d7f1888b0a0e2da4f57da6d3ea329dc577c230b806f74aba26

    • SHA512

      7b3a2ca8518f5cd27de93733bf20958053fac4bcd00039f8f73979fcf8fc2e6393dcc7f10bed0971cac15d090375b7292ad9fcc425e29687b04f8b033b197121

    • SSDEEP

      3072:+czkitvo4BpYN/6mBPry8TXROLdW5m4mURp9OOGF0kmGwY:+A4NCmBPry/N2NOOInw

    • Downloads MZ/PE file

    • Event Triggered Execution: Image File Execution Options Injection

    • 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

    • Checks installed software on the system

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

    • Checks whether UAC is enabled

    • 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.

    • Checks system information in the registry

      System information is often read in order to detect sandboxing environments.

    • Drops file in System32 directory

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks