Malicious PDF — malware analysis report

Static analysis result for SHA-256 465d13512f538931…

MALICIOUS

PDF

43.2 KB Created: 2021-06-03 13:25:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: d863e75c7bee17371aa413fb35241292 SHA-1: 179e577eb386bc934ddd598003ff1724a880ff51 SHA-256: 465d13512f538931c0338e8478832628723a57d0de0981e2888b0d2666cb056a
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for game hacks and free currency, directing users to the URL https://netcdn.online/app/406889139/free-coins-on-coin-master-game-hack. This URL is likely used to download a second-stage payload. The ML classifier also flagged this PDF as malicious with high confidence.

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/406889139/free-coins-on-coin-master-game-hack PDF link annotation
    • https://opac.umrah.ac.id/repository/coin-master-daily-free-spins-haktuts_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/ear-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/minecraft-auto-miner-hack_GM479516143.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-master-gold-cards-free-2021_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-master-spin-cheat_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-robux-without-verification_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-roblox-hair-codes_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-password-hacker_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/games-that-can-be-hacked_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/is-tiktok-free-on-voxi_GM835599320.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-to-get-minecraft-bedrock-for-free_GM479516143.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/minecraft-for-ipad-free_GM479516143.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-master_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-premium-roblox_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-master-daily-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-robux-kid-friendly_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-to-get-minecraft-for-free-ios_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000050ab.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x50AB 24208 bytes
SHA-256: 0b2a44646f0582e17b9d14d87b9c60b23480e854f8b3c696ab314eaf99be317c
font_01_sfnt_off000087fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87FC 17712 bytes
SHA-256: 6ea46f87f2167b805a87cbef3ad9b5ecf4d2513d7b8c5fe933be1d22f28e2546

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