Analysis

  • max time kernel
    147s
  • max time network
    65s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/01/2024, 19:37

General

  • Target

    4985b594ad312f51603493649388ab25.dll

  • Size

    188KB

  • MD5

    4985b594ad312f51603493649388ab25

  • SHA1

    ef355381bfe4b5d1d2972f505f4eae1cab2aafe4

  • SHA256

    89963cbea00dd448757c1f80e1f264f26becbb03c6830708bc6bb839b01c1df2

  • SHA512

    18c96b693c90ae1aad40c376ae71cbf9f8855f97b9bffd2210ba2b78768774ba6a0549f0e76a625e402a15393718d275430943471fe47380775f0a9a3f5aa9d9

  • SSDEEP

    3072:DH0uyjZqEpAK+Gf78TBdrXkTM5vhRg9Esf0DwvtyMpVnpA+z6tX8sxKViWt7dU:DUua/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\4985b594ad312f51603493649388ab25.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4412
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\4985b594ad312f51603493649388ab25.dll,#1
      2⤵
        PID:5028
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5028 -s 688
          3⤵
          • Program crash
          PID:4212
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 5028 -ip 5028
      1⤵
        PID:3720

      Network

            MITRE ATT&CK Matrix

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • memory/5028-0-0x0000000075210000-0x0000000075240000-memory.dmp

              Filesize

              192KB

            • memory/5028-2-0x00000000007E0000-0x00000000007E6000-memory.dmp

              Filesize

              24KB

            • memory/5028-3-0x0000000075210000-0x0000000075240000-memory.dmp

              Filesize

              192KB