Malicious PDF — malware analysis report

Static analysis result for SHA-256 07abed32c7e8b7b8…

MALICIOUS

PDF

45.9 KB Created: 2021-06-03 10:32:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 528f9923daa07b56ed2a656bab78a956 SHA-1: 29b70dc6aa8c6ba631eecffee0f5265d194553ff SHA-256: 07abed32c7e8b7b8a4039fa38b0e79af197aabdd006e2c413a99580045cc4a34
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

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 0.9864

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/406889139/coin-master-fan-club-game-hack PDF link annotation
    • https://digilib.stimlog.ac.id/repository/how-do-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/free-minecraft-education-edition_GM479516143.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/roblox-free-followers_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-robux-site_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/coin-master-daily-free-spins-link-today-facebook_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-to-get-free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-spin-coin-master-instagram_GM406889139.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/free-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-spins-coin-master-facebook_GM406889139.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/www-rbx-com_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-to-download-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/free-robux-just-enter-username_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/roblox-top_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/free-robux-websites-that-actually-work_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-coin-and-spin-link_GM406889139.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/robux-free-gift-card_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/coin-master-pc-hack-tool_GM406889139.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/coin-master-coins-hack_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-robux-mod_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/how-to-get-100-robux-for-free_GM431946152.pdfIn PDF document text
    • https://www.urcouponsdeal.com/2019/03/coin-master-free-spin-and-coin-links.htmlIn 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_off0000533d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x533D 30204 bytes
SHA-256: cf587eb41e95f28ffd7356f4fbf96b9a51607cd34864cb9101220e13b02f7dbd
font_01_sfnt_off000091be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91BE 18080 bytes
SHA-256: 1b58ad6ca3986db2e615a45b5b3b997af56259df789f1331e37082b56e43c60a

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