Analysis

  • max time kernel
    17s
  • max time network
    115s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    10-06-2021 23:56

General

  • Target

    23876ce058703e3813be02cf9306ceeca7257ec92c16b18f1c74d716baa1be81.dll

  • Size

    163KB

  • MD5

    4790e03922d86275fc0094ef3bbb2ec4

  • SHA1

    9166f23da73bfe02181d6332925d6ed600df4266

  • SHA256

    23876ce058703e3813be02cf9306ceeca7257ec92c16b18f1c74d716baa1be81

  • SHA512

    3862185124b9eb4c5bff6063ea8b711cf77598a0477ba34dea5aa4cd8e8910af56cd9e4a2e5da517bd44e15d23e4c92add408f8100438cc6d4fea4d1668c59b7

Malware Config

Extracted

Family

dridex

Botnet

22201

C2

43.229.206.212:443

82.209.17.209:8172

162.241.209.225:4125

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 behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\23876ce058703e3813be02cf9306ceeca7257ec92c16b18f1c74d716baa1be81.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2204
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\23876ce058703e3813be02cf9306ceeca7257ec92c16b18f1c74d716baa1be81.dll,#1
      2⤵
        PID:416
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 416 -s 720
          3⤵
          • Program crash
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3660

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/416-114-0x0000000000000000-mapping.dmp

    • memory/416-115-0x0000000010000000-0x000000001002E000-memory.dmp

      Filesize

      184KB

    • memory/416-117-0x0000000003280000-0x0000000003286000-memory.dmp

      Filesize

      24KB