Analysis

  • max time kernel
    37s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    11-06-2022 16:39

General

  • Target

    IDCRnINaaEmumCkkklgbtq.dll

  • Size

    512KB

  • MD5

    915aafdf0d410067666248efe8df8fcf

  • SHA1

    744b92941284e1164b608235b19c8f07f9dc6819

  • SHA256

    c5d21d0bab87488027c50dfe072831c77ff7c12f1c8bc0e5e6e3669a90c96ac3

  • SHA512

    93748ff5ff761150b4b32285515a6f7dea0bfe917c9a85e55849474b8b2392eff0e66d3c02395b3c4e4d77ed61aab00e9c0ff2b6bf09ceb99413f123becfed2c

Malware Config

Extracted

Family

dridex

Botnet

22203

C2

51.159.52.196:443

134.209.247.135:6602

194.233.68.48:5228

89.31.56.58:593

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\IDCRnINaaEmumCkkklgbtq.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1392
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\IDCRnINaaEmumCkkklgbtq.dll,#1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1364
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1364 -s 300
        3⤵
        • Program crash
        PID:1164

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/1164-60-0x0000000000000000-mapping.dmp

  • memory/1364-54-0x0000000000000000-mapping.dmp

  • memory/1364-55-0x0000000075951000-0x0000000075953000-memory.dmp

    Filesize

    8KB

  • memory/1364-56-0x00000000000D0000-0x00000000000D6000-memory.dmp

    Filesize

    24KB

  • memory/1364-57-0x0000000074C30000-0x0000000074CB1000-memory.dmp

    Filesize

    516KB

  • memory/1364-59-0x00000000000D0000-0x00000000000D6000-memory.dmp

    Filesize

    24KB