Analysis

  • max time kernel
    144s
  • max time network
    160s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/03/2024, 23:04

General

  • Target
    c9db63e8511c93121e836756cc6d647b.dll
  • Size 188KB
  • Sample240314-22fd6abh64
  • SHA256 b679c04afcf77a79a8facd9a3667c962c852013141d19084dc1b03b2966c9293
  • MD5 SHA1 SHA512 SSDEEP

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\c9db63e8511c93121e836756cc6d647b.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1312
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\c9db63e8511c93121e836756cc6d647b.dll,#1
      2⤵
        PID:2964
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2964 -s 688
          3⤵
          • Program crash
          PID:1108
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4032 --field-trial-handle=2900,i,14549994492153927475,12895178890800740987,262144 --variations-seed-version /prefetch:8
      1⤵
        PID:4468
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 2964 -ip 2964
        1⤵
          PID:756

        Network

              MITRE ATT&CK Matrix

              Replay Monitor

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              Downloads

              memory/2964-0-0x0000000075450000-0x0000000075480000-memory.dmp

              memory/2964-2-0x0000000000DD0000-0x0000000000DD6000-memory.dmp