Resubmissions

17/03/2021, 11:14

210317-18w814yayn5

11/12/2020, 06:15

201211-s3m1gmsy9e10

10/12/2020, 17:48

201210-kdnjenxb5s10

10/12/2020, 17:39

201210-y8eh5tnflx5

Analysis

  • max time kernel
    123s
  • max time network
    113s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    10/12/2020, 17:39

General

  • Target
    PreviewDoc.exe
  • Size 506KB
  • Sample201210-y8eh5tnflx
  • SHA256 bcea99b1ec6fa52fec60589878c451266f260a8b4e2d8c85d700b3d24e0dce4b
  • MD5 SHA1 SHA512

Malware Config

Signatures

  • Bazar Loader

    Detected loader normally used to deploy BazarBackdoor malware.

  • Bazar/Team9 Loader payload 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PreviewDoc.exe
    "C:\Users\Admin\AppData\Local\Temp\PreviewDoc.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:984
    • C:\Program Files\Google\Chrome\Application\chrome.exe
      "C:\Program Files\Google\Chrome\Application\chrome.exe" -sf "C:\Users\Admin\AppData\Local\Temp\PreviewDoc.exe"
      2⤵
        PID:2720

    Network

          MITRE ATT&CK Matrix

          Replay Monitor

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          Downloads

          memory/984-2-0x00000000008E0000-0x0000000000928000-memory.dmp

          memory/984-3-0x0000000001F50000-0x0000000001F99000-memory.dmp

          memory/2720-4-0x0000000140000000-0x0000000140083000-memory.dmp