Analysis

  • max time kernel
    147s
  • max time network
    117s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-12-2023 06:08

General

  • Target

    2b381a71552973f79320b620d2d9a54c.dll

  • Size

    188KB

  • MD5

    2b381a71552973f79320b620d2d9a54c

  • SHA1

    f785147804a6ebf0af2451004aa44b391eb9412f

  • SHA256

    511a17d3bda9ef978d26c29f4cea5fa6479710a19cd00b53095c0b0525f0e830

  • SHA512

    74ad8d1b59a89e24db7cc3bac720210c310dc76b1ce2488656fd20b3f47d98dc82e6d90f817e9b65eac51b48d2db5e80e6767a9baaa3698f07d7de7213cf03a9

  • SSDEEP

    3072:TH0uyjZqEpAK+Gf78TBdrXkTM5vhRg9Esf0DwvtyMpVnpA+z6tX8sxKViWw7dU:TUua/Pv7YNhRIEZDeXVpAxtMsxK

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\SysWOW64\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\2b381a71552973f79320b620d2d9a54c.dll,#1
    1⤵
      PID:3576
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3576 -s 688
        2⤵
        • Program crash
        PID:2580
    • C:\Windows\system32\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\2b381a71552973f79320b620d2d9a54c.dll,#1
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:1452
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3576 -ip 3576
      1⤵
        PID:2116

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/3576-0-0x0000000074FF0000-0x0000000075020000-memory.dmp

        Filesize

        192KB

      • memory/3576-2-0x00000000005F0000-0x00000000005F6000-memory.dmp

        Filesize

        24KB

      • memory/3576-3-0x0000000074FF0000-0x0000000075020000-memory.dmp

        Filesize

        192KB