Analysis

  • max time kernel
    147s
  • max time network
    152s
  • 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 08:19

General

  • Target

    b1a5be1fe5e0c72d9b24056cbda7630a.dll

  • Size

    188KB

  • MD5

    b1a5be1fe5e0c72d9b24056cbda7630a

  • SHA1

    fe75703556b6721cbb4fd4ae590a77a7d894b8f7

  • SHA256

    013733351955b40b9719360d3a732f862adefc2da6c23df4edf50ca2d1ec2cb2

  • SHA512

    f8132acc64d1a0d9a71f37eda4bdaf6a330e131daa2bafca672c91f01fbe4ee70087cd9cca595241c30b19f42e8de0e19657fa3b552003aeeceedf37ab9fdcf2

  • SSDEEP

    3072:DA8JmK7ATVfQeVqNFZa/9KzMXJ6jTFDlAwqWut5KZMzfeAAAoso:DzIqATVfQeV2FZalKq6jtGJWuTmd

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\b1a5be1fe5e0c72d9b24056cbda7630a.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1064
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\b1a5be1fe5e0c72d9b24056cbda7630a.dll,#1
      2⤵
        PID:1820
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1820 -s 692
          3⤵
          • Program crash
          PID:4008
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1820 -ip 1820
      1⤵
        PID:1492

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/1820-0-0x0000000000A10000-0x0000000000A16000-memory.dmp

        Filesize

        24KB

      • memory/1820-1-0x0000000074C90000-0x0000000074CC0000-memory.dmp

        Filesize

        192KB

      • memory/1820-3-0x0000000000A10000-0x0000000000A16000-memory.dmp

        Filesize

        24KB