Analysis

  • max time kernel
    150s
  • max time network
    159s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240221-en
  • resource tags

    arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    19-03-2024 18:47

General

  • Target

    50dc4263f4b99b452d70aba39f86e2c50cb11c0948488b001aefe61dc7069593.dll

  • Size

    1.0MB

  • MD5

    8862af832648036583401dc684dfb37e

  • SHA1

    303a5bb159021e54fac7ede1951ee77d3506cf7e

  • SHA256

    50dc4263f4b99b452d70aba39f86e2c50cb11c0948488b001aefe61dc7069593

  • SHA512

    78df17ff6609053ecec51cad8035c4ea767dcb1339c77029f689e2177cdc6ae7441c92146adbacea3904b8e66610629292d35e803ad044b8486d337560cdfb46

  • SSDEEP

    24576:e2c6WRTUUt+HxHGRivPX04OhWqVD6wKhGm31m:nW5tQHlvv0f5B6Vhv31

Malware Config

Extracted

Family

dridex

Botnet

10444

C2

192.46.210.220:443

143.244.140.214:808

45.77.0.96:6891

185.56.219.47:8116

rc4.plain
rc4.plain

Signatures

  • Dridex

    Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.

  • Blocklisted process makes network request 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\50dc4263f4b99b452d70aba39f86e2c50cb11c0948488b001aefe61dc7069593.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4772
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\50dc4263f4b99b452d70aba39f86e2c50cb11c0948488b001aefe61dc7069593.dll,#1
      2⤵
      • Blocklisted process makes network request
      • Checks whether UAC is enabled
      PID:4708

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/4708-0-0x0000000075230000-0x000000007534B000-memory.dmp

    Filesize

    1.1MB

  • memory/4708-1-0x0000000075230000-0x000000007534B000-memory.dmp

    Filesize

    1.1MB

  • memory/4708-3-0x0000000000AC0000-0x0000000000AC1000-memory.dmp

    Filesize

    4KB

  • memory/4708-4-0x0000000075230000-0x000000007534B000-memory.dmp

    Filesize

    1.1MB

  • memory/4708-5-0x0000000075230000-0x000000007534B000-memory.dmp

    Filesize

    1.1MB

  • memory/4708-7-0x0000000000AC0000-0x0000000000AC1000-memory.dmp

    Filesize

    4KB