Malicious PDF — malware analysis report

Static analysis result for SHA-256 c986fee6ed586b10…

MALICIOUS

PDF

43.1 KB Created: 2021-05-19 17:07:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: dfd3952b24425aeacb8440daea61a943 SHA-1: ed11d6974bfc30315257c6f951ce96817d690d73 SHA-256: c986fee6ed586b10fa738161ae5dff1829fd3059440ac55175fb6973aa6670a7
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external websites that promise free in-game currency and hacks, a common lure for phishing and malware distribution. The ML classifier strongly indicated maliciousness, and the presence of multiple game-related lures suggests a scam or credential harvesting attempt. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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.xyz/app/431946152/how-to-get-free-roebucks-in-roblox-game-hack PDF link annotation
    • http://cepobajodeva.com/images/roblox-zone-free-robux_GM431946152.pdfIn PDF document text
    • http://cepobajodeva.com/images/coin-master-free-gold_GM406889139.pdfIn PDF document text
    • http://cepobajodeva.com/images/how-to-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://cepobajodeva.com/images/coin-master-exchange-40-free-spins_GM406889139.pdfIn PDF document text
    • http://cepobajodeva.com/images/rbxcity-free-robux_GM431946152.pdfIn PDF document text
    • http://cepobajodeva.com/images/how-pubg-uc-free_GM1330123889.pdfIn PDF document text
    • http://cepobajodeva.com/images/free-minecraft-skins-xbox-one_GM479516143.pdfIn PDF document text
    • http://cepobajodeva.com/images/roblox-free-play-no-download_GM431946152.pdfIn PDF document text
    • http://cepobajodeva.com/images/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://cepobajodeva.com/images/robux-free-promo-codes_GM431946152.pdfIn PDF document text
    • http://cepobajodeva.com/images/free-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://cepobajodeva.com/images/coin-master-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • http://cepobajodeva.com/images/coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://cepobajodeva.com/images/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
    • http://cepobajodeva.com/images/oprewards-com-login_GM431946152.pdfIn PDF document text
    • http://cepobajodeva.com/images/regal-world-coin-master_GM406889139.pdfIn PDF document text
    • http://cepobajodeva.com/images/coin-master-hack-tuts_GM406889139.pdfIn PDF document text
    • http://cepobajodeva.com/images/coin-master-free-link-daily_GM406889139.pdfIn PDF document text
    • http://cepobajodeva.com/images/giftrobux-com-generator_GM431946152.pdfIn PDF document text
    • http://cepobajodeva.com/images/free-robux-cards_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_003_off0000499c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x499C 26200 bytes
SHA-256: fb002c72fe8b2e31747e0925671f417de693da664db0ccfe10c04360523fb86c
font_01_sfnt_off00008552.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8552 18524 bytes
SHA-256: 6a418ba74ae5328d563bd5a35238a9b9c08fdc9000a9cbda284a157467e29bc0

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