Analysis

  • max time kernel
    142s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    04-03-2024 04:27

General

  • Target

    b1383298eee8f1ec7aea11638b1ef081.dll

  • Size

    188KB

  • MD5

    b1383298eee8f1ec7aea11638b1ef081

  • SHA1

    fa9c638d9589941c22e0bae134e23f5688a2a308

  • SHA256

    73af5f2718ca2946a052bb9b27a2373b29b1094ae7caeba9612c5a8a9095afd0

  • SHA512

    6c292c8e75f01c758c8d4e6d11e0594663ff646b5a08655bfa53f38f520e5c4c848946094c642c5a09f7a0df5ee410598480b30e4fc7fc2396c465c9ebac8342

  • SSDEEP

    3072:vH0uyjZqEpAK+Gf78TBdrXkTM5vhRg9Esf0DwvtyMpVnpA+z6tX8sxKViWW7dU:vUua/Pv7YNhRIEZDeXVpAxtMsxK

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\b1383298eee8f1ec7aea11638b1ef081.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1908
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\b1383298eee8f1ec7aea11638b1ef081.dll,#1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1052
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1052 -s 308
        3⤵
        • Program crash
        PID:2548

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/1052-1-0x0000000000180000-0x0000000000186000-memory.dmp

    Filesize

    24KB

  • memory/1052-0-0x0000000074B50000-0x0000000074B80000-memory.dmp

    Filesize

    192KB