Analysis

  • max time kernel
    91s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    26-06-2022 05:43

General

  • Target

    lAEJRQoZtqYkkklgbtq.dll

  • Size

    512KB

  • MD5

    a687ea0b2be93962b8d30ffc96e7dd67

  • SHA1

    ee893e43858207608087f9e09aa51cc1d1cef32b

  • SHA256

    2ed4c30203ad5091fac0cb694f5dca3af5a591e0de6a56a0dfb51f20ba82fbc9

  • SHA512

    2e6931deaa953065cf9ee488b398a424987777292ec968a4700b08ec7d0b2e96bbc8dde13b57b3c6189f5b1dac9c3dd78905809d9c169c6d3f0c5491cd2bdf71

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 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\lAEJRQoZtqYkkklgbtq.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4836
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\lAEJRQoZtqYkkklgbtq.dll,#1
      2⤵
        PID:4480
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4480 -s 652
          3⤵
          • Program crash
          PID:2620
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4480 -ip 4480
      1⤵
        PID:332

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/4480-130-0x0000000000000000-mapping.dmp
      • memory/4480-131-0x0000000075630000-0x00000000756B1000-memory.dmp
        Filesize

        516KB

      • memory/4480-133-0x0000000000950000-0x0000000000956000-memory.dmp
        Filesize

        24KB