Malicious PDF — malware analysis report

Static analysis result for SHA-256 48682c9f078ae600…

MALICIOUS

PDF

45.4 KB Created: 2021-05-13 07:15:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: fef086bcdfc323cfade48ee72abbc931 SHA-1: 04082ab1a63a04f89984bbd4c22563fe624cc0fe SHA-256: 48682c9f078ae600c55fa209e450e9bee1b85326681ef11d66ecc3a8ff2486ff
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'free Robux' and 'game hacks'. The embedded links are designed to lure users into clicking on them, likely leading to further malicious content or downloads. The ML classifier strongly indicated maliciousness, and the heuristics confirm the use of redirectors.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/free-robux-websites-that-actually-work-2021-game-hack In PDF document text
    • http://d-loft.com.tr/images/download-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • http://d-loft.com.tr/images/free-robux-images_GM431946152.pdfIn PDF document text
    • http://d-loft.com.tr/images/roblox-inappropriate-games_GM431946152.pdfIn PDF document text
    • http://d-loft.com.tr/images/free-spins-coin-master-2021-hack_GM406889139.pdfIn PDF document text
    • http://d-loft.com.tr/images/coin-master-fan-page-giveaway_GM406889139.pdfIn PDF document text
    • http://d-loft.com.tr/images/coin-master-hack-android-no-root_GM406889139.pdfIn PDF document text
    • http://d-loft.com.tr/images/how-to-make-a-minecraft-client_GM479516143.pdfIn PDF document text
    • http://d-loft.com.tr/images/free-gold-cards-for-coin-master_GM406889139.pdfIn PDF document text
    • http://d-loft.com.tr/images/free-robux-safe_GM431946152.pdfIn PDF document text
    • http://d-loft.com.tr/images/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://d-loft.com.tr/images/microsoft-bing-free-robux_GM431946152.pdfIn PDF document text
    • http://d-loft.com.tr/images/2021-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://d-loft.com.tr/images/free-robux-only-1-step_GM431946152.pdfIn PDF document text
    • http://d-loft.com.tr/images/coin-master-hack-no-verification-2021_GM406889139.pdfIn PDF document text
    • http://d-loft.com.tr/images/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • http://d-loft.com.tr/images/how-to-get-free-stuff-on-roblox_GM431946152.pdfIn PDF document text
    • http://d-loft.com.tr/images/free-robux-no-offers_GM431946152.pdfIn PDF document text
    • http://d-loft.com.tr/images/minecraft-free-trial_GM479516143.pdfIn PDF document text
    • http://d-loft.com.tr/images/10-robux_GM431946152.pdfIn PDF document text
    • http://d-loft.com.tr/images/free-links-for-coin-master_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_off00004a70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A70 29404 bytes
SHA-256: c15457528b423928373ec23eb16729fdf60e991950c52e053091f99a0fdd6e39
font_01_sfnt_off00008b0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B0B 19656 bytes
SHA-256: 7b3ca8e33f6ab65cae0b12a773bae5d0e0377a7b1030ef9ec14be3c3cdd71d54

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