Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-03-2024 12:27

General

  • Target

    b21e92cb3d9f6b107aa111c61202df03.dll

  • Size

    188KB

  • MD5

    b21e92cb3d9f6b107aa111c61202df03

  • SHA1

    950ee1d0cbbcb0fa4d5b96fb75619bfb27c47212

  • SHA256

    e275b2c44a7f3cb1145ac8124e5235f43958b557a2b914640f6f71aa9600c59c

  • SHA512

    14c8908b124444c6ec2621b13f6e380fc2d3af0bc4a0da41f27023d70ecfbc46073d45a3855e26aafb671fb326cbbf696338180f809b77d1f89037cd3e84c805

  • SSDEEP

    3072:1A8JmK7ATVfQeVqNFZa/9KzMXJ6jTFDlAwqWut5KZMzfeAAAobo:1zIqATVfQeV2FZalKq6jtGJWuTmd

Malware Config

Extracted

Family

dridex

Botnet

22201

C2

103.82.248.59:443

54.39.98.141:6602

103.109.247.8:10443

rc4.plain
rc4.plain

Signatures

  • Dridex

    Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.

  • Dridex Loader 2 IoCs

    Detects Dridex both x86 and x64 loader in memory.

  • Program crash 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\b21e92cb3d9f6b107aa111c61202df03.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4840
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\b21e92cb3d9f6b107aa111c61202df03.dll,#1
      2⤵
        PID:1544
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1544 -s 664
          3⤵
          • Program crash
          PID:640
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 1544 -ip 1544
      1⤵
        PID:2460

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/1544-0-0x0000000074920000-0x0000000074950000-memory.dmp

        Filesize

        192KB

      • memory/1544-1-0x00000000003F0000-0x00000000003F6000-memory.dmp

        Filesize

        24KB

      • memory/1544-2-0x0000000074920000-0x0000000074950000-memory.dmp

        Filesize

        192KB