Analysis

  • max time kernel
    33s
  • max time network
    121s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    25/08/2021, 14:23

General

  • Target
    2uyv6x53xzch74.php.dll
  • Size 188KB
  • Sample210825-4pn1cm342s
  • SHA256 eebfb3d0367d2dad5db7477869bab47f183cbd7a58a48c0592c8e9aa5b38861f
  • MD5 SHA1 SHA512

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.

  • Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs
  • Dridex Loader 1 IoCs

    Detects Dridex both x86 and x64 loader in memory.

  • Program crash 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 28 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\2uyv6x53xzch74.php.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3008
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\2uyv6x53xzch74.php.dll,#1
      2⤵
        PID:900
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 900 -s 712
          3⤵
          • Program crash
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2776
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 900 -s 728
          3⤵
          • Suspicious use of NtCreateProcessExOtherParentProcess
          • Program crash
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1528

    Network

          MITRE ATT&CK Matrix

          Replay Monitor

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          Downloads

          memory/900-115-0x0000000073890000-0x00000000738C0000-memory.dmp

          memory/900-117-0x0000000003100000-0x000000000324A000-memory.dmp