Malicious PDF — malware analysis report

Static analysis result for SHA-256 d011094163e9d76f…

MALICIOUS

PDF

45.2 KB Created: 2021-06-09 09:41:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 1cc2316fe1adbb522fd30fc3d47e8323 SHA-1: 64b13c17e87b65e4b8055f3390d626b696d70317 SHA-256: d011094163e9d76f794ab7f7a714450b1cba67d334002946c46f4f8fea829941
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to 'game hacks' and 'free generators', specifically mentioning Roblox. It includes a link that redirects to a suspicious URL, likely leading to a malicious site or further exploitation. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs and a download button lure reinforces this assessment.

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.tw/app/431946152/cuantas-hackeadas-de-roblox-game-hack PDF link annotation
    • https://repository.poltekkesgorontalo.ac.id/repository/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/how-to-get-free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/free-spins-coin-master-without-completing-offers_GM406889139.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/how-to-get-free-robux-games_GM431946152.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/rbx-gg-free-robux_GM431946152.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/roblox-hack-client_GM431946152.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/coin-master-daily-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/how-to-earn-robux_GM431946152.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/is-minecraft-free-on-switch_GM479516143.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/pubg-uc-redeem_GM1330123889.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/script-executor-roblox-free_GM431946152.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/coin-master-free-pet-food-links_GM406889139.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/coin-master-hack-facebook_GM406889139.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/bux-life-free-robux_GM431946152.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/roblox-2021-hack_GM431946152.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/coin-master-hack-mod-apk_GM406889139.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/roblox-murder-mystery-free-hacks_GM431946152.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/mine-minecraft-games-for-free_GM479516143.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/promo-codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/cute-animal-outfits-roblox-free_GM431946152.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_004_off00005253.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5253 25100 bytes
SHA-256: 18071d6fb958ffc917c1264a337575f27add862ebb5c6ae4ce62e895622418f6
font_01_sfnt_off00008c4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C4E 18768 bytes
SHA-256: 24245ba4be41bf8034ffaca07daf2f450b7ebdac1c423d0c25e9df46c7354dfe

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