Analysis

  • max time kernel
    80s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    26-06-2022 05:36

General

  • Target

    hu8y3z.dll

  • Size

    476KB

  • MD5

    cdf3b326951bd5cd55254e5599302183

  • SHA1

    217316d0d637d818e2d2d22397222d715ed7b64c

  • SHA256

    d0681c030a51811edc6f19b6cc418043ef928e251c681cdf75a05949f932340b

  • SHA512

    e7d0f735dfd665199acbc0a0d409d5494ab9649cd97809cf7727aa8d86f2695fa516f42ad9943d59ff1754629900590081c2d63c38cfc6a856b6a4902f600071

Malware Config

Extracted

Family

dridex

Botnet

10444

C2

23.246.204.126:443

151.106.39.36:8116

103.124.144.123:6891

172.105.78.60:4664

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\hu8y3z.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1728
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\hu8y3z.dll,#1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1712
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1712 -s 344
        3⤵
        • Program crash
        PID:1284

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/1284-59-0x0000000000000000-mapping.dmp

  • memory/1712-54-0x0000000000000000-mapping.dmp

  • memory/1712-55-0x0000000076461000-0x0000000076463000-memory.dmp

    Filesize

    8KB

  • memory/1712-56-0x00000000001B0000-0x00000000001B6000-memory.dmp

    Filesize

    24KB

  • memory/1712-57-0x00000000753F0000-0x0000000075469000-memory.dmp

    Filesize

    484KB

  • memory/1712-60-0x00000000001B0000-0x00000000001B6000-memory.dmp

    Filesize

    24KB