Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b1594cd428b2596…

MALICIOUS

PDF

34.3 KB Created: 2021-07-05 11:14:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 02ef1658157a1b645e2a293c968d9bcb SHA-1: d5a29f69bc2eacf862a82a7197cf7c036d07dce6 SHA-256: 7b1594cd428b2596a2b77a8e73c928f6c230a0a3d6cef4009570916184f9f74a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and lures users with promises of game hacks. The primary URL, http://netcdn.tw/app/406889139/how-to-hack-coin-master-game-hack, is identified as a malicious redirector. The document's content and embedded links strongly suggest a phishing or scam attempt designed to lead users to potentially harmful websites. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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 http://netcdn.tw/app/406889139/how-to-hack-coin-master-game-hack In PDF document text
    • http://stitqi.ac.id/website/repository/how-to-get-free-minecraft-coins_GM479516143.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/coinmasterfree_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/codes-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/is-minecraft-free-on-nintendo-switch_GM479516143.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/100-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/best-free-roblox-outfits_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/coin-master-hack-ios-no-verification_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/coin-master-free-generator_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/spin-coin-master_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/coin-master-500-free-spins_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/omplete-surveys-for-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/coin-master-free-spin-and-coins-links-home_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/free-minecraft-skins_GM479516143.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/hack-card-collection-coin-master_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/coin-master-free-spins-and-coins-daily_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/free-robux-codes-not-used_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/minecraft-tower-defense-2-hacked_GM479516143.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/coin-master-fan-page-free-spins_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/legit-coin-master-hack-without-verification_GM406889139.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
font_00_sfnt_off000030dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30DD 22580 bytes
SHA-256: de3916aea84e1712552860b80d1fd475d9ffc4ea8cdf09451d55346327cfe5b7
font_01_sfnt_off00006370.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6370 18168 bytes
SHA-256: 2bd458773159c42ddb973016f08b2d4d6bea9039625adade8827a8f393a5a95a

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