Analysis

  • max time kernel
    142s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    04-03-2024 10:14

General

  • Target

    b1df6bb731ecc9f3fb20857b2cfc559f.dll

  • Size

    188KB

  • MD5

    b1df6bb731ecc9f3fb20857b2cfc559f

  • SHA1

    48044789bef0bb6ebddc33a8c4b01fc157e157b2

  • SHA256

    006e0f57154580997395e919047510a08086edad9ea6759b23dde3e75b6d50b1

  • SHA512

    83ef43a1d6bbfcbd26d9afd8630b96f883a109894bf834aeda31fba522acfe48fa18c7e1bf4171908341b64be68217feb33ecee992f851b01e5d072d09bdf5d8

  • SSDEEP

    3072:TA8JmK7ATVfQeVqNFZa/9KzMXJ6jTFDlAwqWut5KZMzfeAAAo6o:TzIqATVfQeV2FZalKq6jtGJWuTmd

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 1 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\b1df6bb731ecc9f3fb20857b2cfc559f.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3068
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\b1df6bb731ecc9f3fb20857b2cfc559f.dll,#1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2024
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2024 -s 308
        3⤵
        • Program crash
        PID:1388

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2024-1-0x0000000074BF0000-0x0000000074C20000-memory.dmp

    Filesize

    192KB

  • memory/2024-0-0x00000000001E0000-0x00000000001E6000-memory.dmp

    Filesize

    24KB

  • memory/2024-4-0x00000000001E0000-0x00000000001E6000-memory.dmp

    Filesize

    24KB