Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/03/2024, 08:50

General

  • Target
    b7038211339e4de465716e0bf3411c4c.dll
  • Size 188KB
  • Sample240306-krshasgf45
  • SHA256 1f13ebabed71c90669e3d3286d160165903829ffcf7575deabce4788ae3f8b0a
  • 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 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\b7038211339e4de465716e0bf3411c4c.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3964
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\b7038211339e4de465716e0bf3411c4c.dll,#1
      2⤵
        PID:4748
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4748 -s 688
          3⤵
          • Program crash
          PID:4124
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4748 -ip 4748
      1⤵
        PID:2196

      Network

            MITRE ATT&CK Matrix

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            memory/4748-0-0x0000000075010000-0x0000000075040000-memory.dmp

            memory/4748-1-0x0000000001250000-0x0000000001256000-memory.dmp

            memory/4748-2-0x0000000075010000-0x0000000075040000-memory.dmp