Analysis

  • max time kernel
    142s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-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 11 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\b21e92cb3d9f6b107aa111c61202df03.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3020
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\b21e92cb3d9f6b107aa111c61202df03.dll,#1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3044
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3044 -s 308
        3⤵
        • Program crash
        PID:2988

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/3044-0-0x0000000074940000-0x0000000074970000-memory.dmp

    Filesize

    192KB

  • memory/3044-1-0x0000000000130000-0x0000000000136000-memory.dmp

    Filesize

    24KB

  • memory/3044-2-0x0000000074940000-0x0000000074970000-memory.dmp

    Filesize

    192KB