Analysis

  • max time kernel
    149s
  • max time network
    237s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220721-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-07-2022 05:10

General

  • Target

    epix12dx.dll

  • Size

    476KB

  • MD5

    a3a64611273a16751d073c147b783c06

  • SHA1

    0757337ab4720ba52b02fca61fa5b294d6deba35

  • SHA256

    577f04df45d0e29c54c2ed22493da51147f7b07654b1551116e524dc576f4369

  • SHA512

    59f7263454511ee475742a6fa5046e1f7ba6fff82963817bfae8876cfef3f02dfe26463dfdeafcaf480d82bdfc3f5ead7cac9cf39b1dbc37932e93ee3e1f218a

Malware Config

Extracted

Family

dridex

Botnet

10444

C2

23.246.204.126:443

151.106.39.36:8116

103.124.144.123:6891

172.105.78.60:4664

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\epix12dx.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3820
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\epix12dx.dll,#1
      2⤵
        PID:636
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 636 -s 708
          3⤵
          • Program crash
          PID:4076
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 636 -ip 636
      1⤵
        PID:4156

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/636-130-0x0000000000000000-mapping.dmp
      • memory/636-131-0x0000000001050000-0x0000000001056000-memory.dmp
        Filesize

        24KB

      • memory/636-132-0x00000000750B0000-0x0000000075129000-memory.dmp
        Filesize

        484KB

      • memory/636-134-0x0000000001050000-0x0000000001056000-memory.dmp
        Filesize

        24KB