Malicious PDF — malware analysis report

Static analysis result for SHA-256 e32dc4bd18a65cce…

MALICIOUS

PDF

35.3 KB Created: 2021-07-05 17:27:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: f5ad185ec05ae33ffbc23d32cf316e1b SHA-1: ef3ffe342e4e4a0822d0b37b75ef7d39c8fb77a3 SHA-256: e32dc4bd18a65cceca27f0880fbb00f00dddee9245361721e53ce8e9b4fd8f04
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for game hacks, specifically mentioning Roblox, and links to a suspicious URL. The ML classifier strongly flagged this PDF as malicious. The presence of embedded URLs and the nature of the lure suggest an attempt to redirect the user to a site that likely hosts further malicious content or phishing attempts.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/431946152/roblox-mobile-hack-game-hack PDF link annotation
    • https://digilib.akperkabpurworejo.ac.id/repository/free-pants-roblox-girl_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/coin-master-hack-spins_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/minecraft-hack-2021_GM479516143.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/coin-master-hack-apk-2021-ios_GM406889139.pdfIn PDF document text
    • https://digilib.akperkabpurworejo.ac.id/repository/how-to-get-loads-of-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://digilib.akperkabpurworejo.ac.id/repository/robux-redeem-codes-free_GM431946152.pdfIn PDF document text
    • https://digilib.akperkabpurworejo.ac.id/repository/roblox-admin-panel-hack-2021_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/coin-master-free-pet-food_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/roblox-wheel-of-fortune-hack_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/free-roblox-adopt-me-accounts_GM431946152.pdfIn PDF document text
    • https://digilib.akperkabpurworejo.ac.id/repository/free-roblox-items-codes-2021_GM431946152.pdfIn PDF document text
    • https://digilib.akperkabpurworejo.ac.id/repository/how-to-make-time-freeze-in-roblox-free-admin-hangout_GM431946152.pdfIn PDF document text
    • https://digilib.akperkabpurworejo.ac.id/repository/hacking-sites-for-roblox-2021_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/how-to-get-to-village-3-in-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/roblox-hack-me_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/instagram-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/how-to-get-free-robux-no-points_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/roblox-xray-hack_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/install-free-game-coin-master_GM406889139.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
font_00_sfnt_off00003111.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3111 23192 bytes
SHA-256: c80c7264f35ec0a2399a936c1d06dc29a8f304a2e1d55cb41be6fa14a13549b3
font_01_sfnt_off00006558.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6558 18972 bytes
SHA-256: 0e9155019685f09988e5274749080987783afe0cd242ca2fcc27e9f8310fa0e4

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