Analysis

  • max time kernel
    115s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/12/2023, 21:43

General

  • Target

    1d6a38146b9119b8a6508f6d3d51d514.dll

  • Size

    188KB

  • MD5

    1d6a38146b9119b8a6508f6d3d51d514

  • SHA1

    5f73e25fcf2d21ee979197f1411375ed6e919cbc

  • SHA256

    3d32f3e85d487546d0abba75c527987b30ab14b4cae2dd17bde53a3a314cf4c6

  • SHA512

    9a45d0e675a6174ca6c72fb0b88cabca300f93d644cf1690e01cb7374d60be957f3534da22476e9a55ca5586a0d0bfa40bbb3cb2f58e5f31c722090f7e4ec4f1

  • SSDEEP

    3072:+A8JmK7ATVfQeVqNFZa/9KzMXJ6jTFDlAwqWut5KZMzfeAAAoto:+zIqATVfQeV2FZalKq6jtGJWuTmd

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 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\1d6a38146b9119b8a6508f6d3d51d514.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2704
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\1d6a38146b9119b8a6508f6d3d51d514.dll,#1
      2⤵
        PID:4048
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4048 -s 688
          3⤵
          • Program crash
          PID:1488
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4048 -ip 4048
      1⤵
        PID:1500

      Network

            MITRE ATT&CK Matrix

            Replay Monitor

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            Downloads

            • memory/4048-0-0x0000000075540000-0x0000000075570000-memory.dmp

              Filesize

              192KB

            • memory/4048-1-0x0000000001320000-0x0000000001326000-memory.dmp

              Filesize

              24KB