Analysis

  • max time kernel
    110s
  • max time network
    123s
  • platform
    windows10_x64
  • resource
    win10-en-20211014
  • submitted
    22/11/2021, 16:15

General

  • Target
    tWJVslCUpcEaUuDcuntfuck.mp4.dll
  • Size 428KB
  • Sample211122-tp87psgaaq
  • SHA256 ee1259ba7e41be5e8f11fb7ed2fb983bd9a48e757cf59690336aa63ac2497dba
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • dridex

Botnet
  • 22203

C2
  • 67.207.95.35:443

  • 86.107.98.232:8333

  • 188.165.214.166:4664

  • 144.91.110.219:9217

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 12 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\tWJVslCUpcEaUuDcuntfuck.mp4.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2776
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\tWJVslCUpcEaUuDcuntfuck.mp4.dll,#1
      2⤵
        PID:3028
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3028 -s 692
          3⤵
          • Program crash
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3636

    Network

          MITRE ATT&CK Matrix

          Replay Monitor

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          Downloads

          memory/3028-116-0x00000000738E0000-0x000000007394D000-memory.dmp

          memory/3028-118-0x00000000045E0000-0x00000000045E6000-memory.dmp