Analysis

  • max time kernel
    141s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    05-03-2024 01:26

General

  • Target

    b36d3e6810ca49ac83ff8ac03e86944e.dll

  • Size

    188KB

  • MD5

    b36d3e6810ca49ac83ff8ac03e86944e

  • SHA1

    5d4e932a673ac8ac915a76f35deb4fa6889d9089

  • SHA256

    8c6a797b103fed118c9b478e27a814da8fb5f7950f3d3526da6b48a6b8a218f3

  • SHA512

    685a0aff80796a679b868a0962ab2aa55899963b7ea678c7d28287771aaae6595116508b6858782e0d02adda113e47a2d31f8622b865c7b06ae2c860cf40bb69

  • SSDEEP

    3072:2A8JmK7ATVfQeVqNFZa/9KzMXJ6jTFDlAwqWut5KZMzfeAAAoBo:2zIqATVfQeV2FZalKq6jtGJWuTmd

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 11 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\b36d3e6810ca49ac83ff8ac03e86944e.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1640
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\b36d3e6810ca49ac83ff8ac03e86944e.dll,#1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1120
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1120 -s 300
        3⤵
        • Program crash
        PID:2172

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1120-0-0x0000000074900000-0x0000000074930000-memory.dmp

    Filesize

    192KB

  • memory/1120-1-0x00000000001B0000-0x00000000001B6000-memory.dmp

    Filesize

    24KB

  • memory/1120-2-0x0000000074900000-0x0000000074930000-memory.dmp

    Filesize

    192KB