Analysis

  • max time kernel
    139s
  • 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
    04-03-2024 09:01

General

  • Target

    b1bb5e9210396ecbfd08ef467d98c428.dll

  • Size

    188KB

  • MD5

    b1bb5e9210396ecbfd08ef467d98c428

  • SHA1

    b00af77b70162464fe624bc97ff8023f2dd4c0e6

  • SHA256

    888a4bb75406a0478869d794986ed082254a53cfbe772dea1051044859f8ba4d

  • SHA512

    28d5a75add5ac35da5dad2132076ff7c7aecfa1151391effe229b17da47b26be2351304834c12d5e30c2d6606c5f506d703115b5386e3f611afa262dedd66fd9

  • SSDEEP

    3072:/A8JmK7ATVfQeVqNFZa/9KzMXJ6jTFDlAwqWut5KZMzfeAAAoXo:/zIqATVfQeV2FZalKq6jtGJWuTmd

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 2 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\b1bb5e9210396ecbfd08ef467d98c428.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3748
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\b1bb5e9210396ecbfd08ef467d98c428.dll,#1
      2⤵
        PID:4056
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4056 -s 692
          3⤵
          • Program crash
          PID:2352
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 4056 -ip 4056
      1⤵
        PID:1504
      • 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=4068 --field-trial-handle=2236,i,5367110156796017614,12594004256180761011,262144 --variations-seed-version /prefetch:8
        1⤵
          PID:4800

        Network

        MITRE ATT&CK Matrix

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/4056-1-0x0000000074A00000-0x0000000074A30000-memory.dmp

          Filesize

          192KB

        • memory/4056-0-0x0000000074A00000-0x0000000074A30000-memory.dmp

          Filesize

          192KB

        • memory/4056-2-0x0000000000840000-0x0000000000846000-memory.dmp

          Filesize

          24KB