Malicious PDF — malware analysis report

Static analysis result for SHA-256 01fc3527c22fc420…

MALICIOUS

PDF

46.4 KB Created: 2021-06-08 19:34:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c7a444904f28b6fa40b56cc9914f72f9 SHA-1: 6c93deadaca462acd9ab3010e97a18df87bbcc7c SHA-256: 01fc3527c22fc420d1ade5952ae0fe9d36237e5723e1f60a9d50fc4446de8a87
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'free generators'. The presence of a visual download button and the overall structure suggest a lure to trick users into visiting these sites, likely to download further malware or engage in scams. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

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/roblox-hack-website-no-human-verification-game-hack In PDF document text
    • http://lib-smansumsel.sch.id/repository/free-robux-websites-no-human-verification_GM431946152.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/coin-master-hack-app-ios_GM406889139.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/free-minecraft-domain_GM479516143.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/minecraft-free-ios-2021_GM479516143.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/coin-master-hack-no-root_GM406889139.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/free-spins-coin-master-twitter_GM406889139.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/coin-master-spin-and-coins-free_GM406889139.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/roblox-ban_GM431946152.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/how-to-get-free-spins-on-coin-master-facebook_GM406889139.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/free-daily-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/free-minecraft-survival-server_GM479516143.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/how-long-is-the-minecraft-free-trial_GM479516143.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/free-spin-coin-master-link-today_GM406889139.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/free-robux-today_GM431946152.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/coin-master-card-hack-apk_GM406889139.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/toolbox-for-mcpe_GM479516143.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/minecraft-hacked-client-download_GM479516143.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/minecraft-dungeons-free_GM479516143.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/free-spins-coin-master-hack-2021_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
stream_004_off000054e5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x54E5 25828 bytes
SHA-256: 1f8ed6fa04ffdd4cf4f31f4aeafbdb50783899db6f82875b9357b9614ce66ea5
font_01_sfnt_off0000902d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x902D 19140 bytes
SHA-256: b60330bbe4d5aa144c83015bc077ea47ec4950c5c7895deb7ca28fc5bfa0aac1

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