Analysis

  • max time kernel
    117s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    25-04-2022 02:39

General

  • Target

    youtube.dll

  • Size

    214KB

  • MD5

    9a4ef0169f86641aa99017049de272f5

  • SHA1

    82e1a3868eff88753fe30abedf7c83620aaddd13

  • SHA256

    d21d616f6052e8b62292fcc6d9fd9ee2a3b549c59ca76aa8ef5a96cd163512ac

  • SHA512

    9b9bff3e64ee7f060679b3ff8704b8f89057748906198c674e7ebec7a51e33023af119997877790837389905090d57559eadc49811f53973b7ed91f3552c9e84

Malware Config

Extracted

Family

bazarloader

C2

148.163.42.213

5.255.102.10

188.127.235.177

23.160.193.221

reddew28c.bazar

bluehail.bazar

whitestorm9p.bazar

Signatures

  • Bazar Loader

    Detected loader normally used to deploy BazarBackdoor malware.

  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\youtube.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2052
    • C:\Windows\system32\cmd.exe
      cmd /c choice /c y /d y /t 10 > NUL & "C:\Windows\system32\rundll32.exe" "C:\Users\Admin\AppData\Local\Temp\youtube.dll", #1 ZF3bI6aD VI0rr2aG & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4160
      • C:\Windows\system32\choice.exe
        choice /c y /d y /t 10
        3⤵
          PID:1236
        • C:\Windows\system32\rundll32.exe
          "C:\Windows\system32\rundll32.exe" "C:\Users\Admin\AppData\Local\Temp\youtube.dll", #1 ZF3bI6aD VI0rr2aG
          3⤵
            PID:3200

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/1236-132-0x0000000000000000-mapping.dmp
      • memory/2052-130-0x000001ADA1A40000-0x000001ADA1A60000-memory.dmp
        Filesize

        128KB

      • memory/3200-133-0x0000000000000000-mapping.dmp
      • memory/3200-134-0x000001CDCDD90000-0x000001CDCDDB0000-memory.dmp
        Filesize

        128KB

      • memory/4160-131-0x0000000000000000-mapping.dmp