Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee09ec1ca955b477…

MALICIOUS

PDF

45.1 KB Created: 2021-06-04 03:15:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 76c497d47a001a9e707515a948d6f0a6 SHA-1: d3ba7d1f74d2983969cf2d6b6aa1055b1e708eb8 SHA-256: ee09ec1ca955b477915b14f65e271e8f4af8ef5a90cf6bd0c71c936795a4bab6
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a heuristic firing for a game hack redirect lure, pointing to a suspicious URL. The document body, though heavily obfuscated, contains references to the same URL. The ML classifier also flagged this PDF as malicious. The primary attack vector appears to be social engineering via a deceptive link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • 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.online/app/479516143/can-you-host-a-minecraft-server-for-free-game-hack PDF link annotation
    • https://digilib.stieama.ac.id/repository/hack-coin-master-pc_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/roblox-free-clothes-generator_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-hack-pc_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-mster-free_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-get-free-robux-by-playing-games_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-spins-hack_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/minecraft-for-free-apk_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-free-spin-today-2021_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/minecraft-story-mode-free_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/moonactive-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/microsoft-bing-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-bobux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-offers_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/easy-robux-today-com_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-no-human-verification-and-no-survey_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-hack-xyz-download-free_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/minecraft-pe_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-hack-tool-without-verification_GM406889139.pdfIn PDF document text
    • https://discord.ggIn 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_004_off00005413.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5413 25928 bytes
SHA-256: 0b33f4535ce5afe309973cd1de44f84562f9755808e116518b5e2b840a654e95
font_01_sfnt_off00008e51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E51 18124 bytes
SHA-256: 8e5dc60291529a08b56c91f5b02c83709fd9076ee9043487047b9c72fda07db8

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