Analysis

  • max time kernel
    197s
  • max time network
    213s
  • 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 05:08

General

  • Target

    dahp7znyk.dll

  • Size

    476KB

  • MD5

    f7703084b13482c646f3851e18d8951a

  • SHA1

    939ff0c3db869fa5656b6905f824fdb69050e43c

  • SHA256

    b98be8d2e7d160dacbd6cf682aa3fa9f0a0a68ae2d0f89b25376519f0883e495

  • SHA512

    1c9e8a129bf0a634582343f14283d5bf152adc58f51230bf288482f49c5605c62b320ae1577571faf039a2b6c070985c251fa0f4a804e1dc98e287f087273498

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\dahp7znyk.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4552
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\dahp7znyk.dll,#1
      2⤵
        PID:4464
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4464 -s 700
          3⤵
          • Program crash
          PID:2532
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4464 -ip 4464
      1⤵
        PID:2792

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/4464-130-0x0000000000000000-mapping.dmp
      • memory/4464-131-0x00000000005C0000-0x00000000005C6000-memory.dmp
        Filesize

        24KB

      • memory/4464-132-0x00000000753E0000-0x0000000075459000-memory.dmp
        Filesize

        484KB

      • memory/4464-134-0x00000000005C0000-0x00000000005C6000-memory.dmp
        Filesize

        24KB