Malicious PDF — malware analysis report

Static analysis result for SHA-256 9278916aaa949c4b…

MALICIOUS

PDF

32.9 KB Created: 2021-07-04 17:23:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 84e9e12a8e22adeb2c75f3557e45d350 SHA-1: 17df51d809fe8d4fdfc313323dabcdb1f517b8ef SHA-256: 9278916aaa949c4b0676c48a5de135e1e5c35b3114d6acf063732d7a9cba2186
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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/479516143/how-to-get-a-cape-in-minecraft-for-free-game-hack PDF link annotation
    • http://digilib.iailm.ac.id/repository/coin-master-hack-tool-2021_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/robux-for-offers_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/roblox-open-inventory-hack_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/get-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/how-to-get-free-robux-easy-on-phone_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/descargar-roblox-hack-robux-para-android-2021_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/pubg-uc-2021_GM1330123889.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/how-to-watch-ads-for-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coin-master-free-spins-haktuts_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/roblox-anthro-paid-for-free_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/robuxian-free-robux-hack-script_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/roblox-hack-menu-download-pc_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-roblox-gift-card-codes-2021-march_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/how-to-coin-master-spin-hack_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-robux-no-survey-2021-june_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-roblox-accounts-2021-october_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/microsoft-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/wurst-client-112-2_GM479516143.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/hack-master-coin-pc_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_off00002e7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E7B 21624 bytes
SHA-256: 83c24e7eb15bee433531c017d28a1045a87467386591a8017f7ae257de66387b
font_01_sfnt_off00005daf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DAF 18336 bytes
SHA-256: 34ed079bdcc1da02225909eaf6eac2ee84471bd3f5b393be07d7fa5508cfedbb