Analysis

  • max time kernel
    144s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-03-2024 12:24

General

  • Target

    d8cb8ea5f37cde6a0ecd69e11fb3a988.dll

  • Size

    188KB

  • MD5

    d8cb8ea5f37cde6a0ecd69e11fb3a988

  • SHA1

    997e9086061b7d7ba0747468dc2d034e749c9fd5

  • SHA256

    36800c7345fe7b9fe77d8828a6a539bebe845eab1c071258b004367d45428a2a

  • SHA512

    43c07cd8d375e39c0d3980c18b40db9236202207a396cfa327391e5c0dd33e2cac4b488c1cafe3d4c17abbc394c96d8300200f38c229515e1066f264ca384573

  • SSDEEP

    3072:KH0uyjZqEpAK+Gf78TBdrXkTM5vhRg9Esf0DwvtyMpVnpA+z6tX8sxKViWZ7dU:KUua/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\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\d8cb8ea5f37cde6a0ecd69e11fb3a988.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:616
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\d8cb8ea5f37cde6a0ecd69e11fb3a988.dll,#1
      2⤵
        PID:4444
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4444 -s 664
          3⤵
          • Program crash
          PID:3472
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4444 -ip 4444
      1⤵
        PID:864

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/4444-0-0x0000000074F10000-0x0000000074F40000-memory.dmp

        Filesize

        192KB

      • memory/4444-1-0x0000000074F10000-0x0000000074F40000-memory.dmp

        Filesize

        192KB

      • memory/4444-2-0x0000000002BF0000-0x0000000002BF6000-memory.dmp

        Filesize

        24KB