Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4b7ade7290288e6…

MALICIOUS

PDF

45.0 KB Created: 2021-06-09 15:54:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c87711de16ca0bec5b75446f675c56f5 SHA-1: ea37e3b8db808c6c1e8fcfd9ee62e88ac510f100 SHA-256: d4b7ade7290288e6facf145011eab60bba0e3c37c3cfa2aa6ac0a6c573cea633
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains lures for free game items and directs users to a known malicious redirector URL. The embedded content suggests a phishing or scam attempt, likely to lead users to a site that may attempt further exploitation or credential harvesting. No scripts were extracted, but the document's structure and embedded URLs indicate a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.tw/app/431946152/free-roblox-gift-card-codes-2021-august-game-hack In PDF document text
    • https://www.belgium-archery.be/images/coin-master-hack-ios_GM406889139.pdfIn PDF document text
    • https://www.belgium-archery.be/images/minecraft-client-download_GM479516143.pdfIn PDF document text
    • https://www.belgium-archery.be/images/coin-master-hack-ios-no-verification_GM406889139.pdfIn PDF document text
    • https://www.belgium-archery.be/images/coin-master-hack-version-download-ios_GM406889139.pdfIn PDF document text
    • https://www.belgium-archery.be/images/free-modded-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • https://www.belgium-archery.be/images/free-robux-generator-2021-no-survey_GM431946152.pdfIn PDF document text
    • https://www.belgium-archery.be/images/tiktok-free-gift_GM835599320.pdfIn PDF document text
    • https://www.belgium-archery.be/images/coin-master-spin-hack-trick_GM406889139.pdfIn PDF document text
    • https://www.belgium-archery.be/images/how-to-get-free-robux-without-doing-anything-2021_GM431946152.pdfIn PDF document text
    • https://www.belgium-archery.be/images/pokemon-go-free-accounts-list_GM1094591345.pdfIn PDF document text
    • https://www.belgium-archery.be/images/how-to-get-800-robux-for-free_GM431946152.pdfIn PDF document text
    • https://www.belgium-archery.be/images/roblox-play-as-guest-free_GM431946152.pdfIn PDF document text
    • https://www.belgium-archery.be/images/free-coins-and-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.belgium-archery.be/images/can-i-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • https://www.belgium-archery.be/images/how-to-get-free-robux-easy-no-download_GM431946152.pdfIn PDF document text
    • https://www.belgium-archery.be/images/how-to-get-free-robux-without-surveys_GM431946152.pdfIn PDF document text
    • https://www.belgium-archery.be/images/is-there-any-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.belgium-archery.be/images/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://www.belgium-archery.be/images/coins-master-hack_GM406889139.pdfIn PDF document text
    • https://www.belgium-archery.be/images/fighting-free-card-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_off00004fcd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4FCD 25608 bytes
SHA-256: 89c66f99c439319e1047c5bcf739c17191df695cb22f4467236d0d6b3d8d1c4a
font_01_sfnt_off000089be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89BE 19404 bytes
SHA-256: c82ab81cc3dedf333239eb1c11087d17cd0daf7c3d98bc94981752b74b4c22b1

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