Analysis

  • max time kernel
    134s
  • max time network
    105s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/05/2024, 10:31

General

  • Target

    b74fb1e2d98a6571996728e61309ea9ff7f74107798e9336190d8f08a1e43b91.dll

  • Size

    2.0MB

  • MD5

    91e79eb94adfd8eb06b9700fac3fe29e

  • SHA1

    40050fd16b571a2c13db055a2cf083194952f094

  • SHA256

    b74fb1e2d98a6571996728e61309ea9ff7f74107798e9336190d8f08a1e43b91

  • SHA512

    96e3981ce30c3a8d36afd4714be91c267933cf0a28a4344f4916bb80c7cee26e6554a40299a6bdedd38d6a6f08543a4766280c71f4d4f549154974beeda1c6ae

  • SSDEEP

    49152:iCdfr4mv+IzkEA3sG43+gtglo3b1kGbyS+xoI99FtA:iCdfr4mv+IzlZOgtDVMT7

Malware Config

Signatures

  • Blackmoon, KrBanker

    Blackmoon also known as KrBanker is banking trojan first discovered in early 2014.

  • Detect Blackmoon payload 1 IoCs
  • Blocklisted process makes network request 1 IoCs
  • Writes to the Master Boot Record (MBR) 1 TTPs 2 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\b74fb1e2d98a6571996728e61309ea9ff7f74107798e9336190d8f08a1e43b91.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4468
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\b74fb1e2d98a6571996728e61309ea9ff7f74107798e9336190d8f08a1e43b91.dll,#1
      2⤵
      • Blocklisted process makes network request
      • Writes to the Master Boot Record (MBR)
      • Suspicious use of AdjustPrivilegeToken
      PID:2392

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/2392-0-0x0000000010000000-0x00000000103FE000-memory.dmp

          Filesize

          4.0MB

        • memory/2392-1-0x0000000010000000-0x00000000103FE000-memory.dmp

          Filesize

          4.0MB