Analysis

  • max time kernel
    120s
  • max time network
    125s
  • platform
    windows10_x64
  • resource
    win10-en-20211104
  • submitted
    24/11/2021, 16:49

General

  • Target
    SecuriteInfo.com.Drixed-FJX76C9558A0CD4.8758.9432.dll
  • Size 768KB
  • Sample211124-vbn52sgdd9
  • SHA256 fad0cecec2b7f448148ea2be04e59637b2439580d9c58d2d59c5bd44af33b4dd
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • dridex

Botnet
  • 22203

C2
  • 107.170.4.227:443

  • 178.128.222.53:8116

  • 185.148.168.15:4664

  • 64.251.25.156:6602

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 behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Drixed-FJX76C9558A0CD4.8758.9432.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3592
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Drixed-FJX76C9558A0CD4.8758.9432.dll,#1
      2⤵
        PID:3156
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3156 -s 660
          3⤵
          • Program crash
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:436

    Network

          MITRE ATT&CK Matrix

          Replay Monitor

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          Downloads

          memory/3156-119-0x0000000073D00000-0x0000000073DC2000-memory.dmp

          memory/3156-121-0x0000000001090000-0x0000000001096000-memory.dmp