Analysis

  • max time kernel
    141s
  • max time network
    128s
  • 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 22:10

General

  • Target

    b339347e3ca1df6e8ae904e5dcfefcc4.dll

  • Size

    188KB

  • MD5

    b339347e3ca1df6e8ae904e5dcfefcc4

  • SHA1

    3fffcf655c525a38ea2ce7d4232dc0fd4057779c

  • SHA256

    df211f9fe9c441bb19299e548ec770995c50a703a783810831973776c463768c

  • SHA512

    af2f64a4218027c18baca6d7090ff9de718801e795a889498347284d1893824f8002ab2e3bd6902e68123072f5bb175f0b0fc845f94109794010696d2d6a545c

  • SSDEEP

    3072:oH0uyjZqEpAK+Gf78TBdrXkTM5vhRg9Esf0DwvtyMpVnpA+z6tX8sxKViWs7dU:oUua/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 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\b339347e3ca1df6e8ae904e5dcfefcc4.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1252
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\b339347e3ca1df6e8ae904e5dcfefcc4.dll,#1
      2⤵
        PID:4924
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4924 -s 692
          3⤵
          • Program crash
          PID:3884
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 180 -p 4924 -ip 4924
      1⤵
        PID:2140

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/4924-0-0x0000000074C50000-0x0000000074C80000-memory.dmp

        Filesize

        192KB

      • memory/4924-1-0x00000000011F0000-0x00000000011F6000-memory.dmp

        Filesize

        24KB