Malicious PDF — malware analysis report

Static analysis result for SHA-256 2382cd03f6657b72…

MALICIOUS

PDF

38.2 KB Created: 2021-05-20 22:15:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 5242cff199fcac909dc67415873a6365 SHA-1: 14642457b033ea0d4b03ee2a787df5c4787c10d0 SHA-256: 2382cd03f6657b7272a70a6bb81a31a63f58cfb3b9fcd633607df5124c5f4165
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File T1059.003 Windows Command Shell

The PDF document contains a lure for downloading a file, indicated by the 'CLICK HERE TO ACCESS MINECRAFT GENERATOR' text and a high-confidence ML classifier flagging it as malicious. It also contains heuristics indicating a lure to execute commands via the clipboard, suggesting the user is prompted to paste content into a shell. Multiple URLs are present, some of which are likely related to the malicious payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9407

Heuristics 4

  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.xyz/app/479516143/minecraft-bedrock-download-pc-free-game-hack PDF link annotation
    • http://ellobo.com.ua/ckfinder/userfiles/files/how-to-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://ellobo.com.ua/ckfinder/userfiles/files/pokemon-go-free-pokeballs-no-human-verification_GM1094591345.pdfIn PDF document text
    • http://ellobo.com.ua/ckfinder/userfiles/files/blogger-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://ellobo.com.ua/ckfinder/userfiles/files/coin-master-free-spin-link-app_GM406889139.pdfIn PDF document text
    • http://ellobo.com.ua/ckfinder/userfiles/files/100-free-tiktok-followers_GM835599320.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003874.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3874 25684 bytes
SHA-256: 5cca15c1d7936323a3a941164cb5e690d6cd495744fa6cdaf5f123dc990fabe5
font_01_sfnt_off00007286.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7286 18828 bytes
SHA-256: a264e86136786ea36ffe75565c0a75df0f10437a5612c71f93040c03370f29a0

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