Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d14756998b1d96e…

MALICIOUS

PDF

34.6 KB Created: 2021-07-07 04:47:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 82767239b58a7bc93c4648c2e63323a0 SHA-1: ac0076fa68dd106b3b598862069d08751f2f0975 SHA-256: 9d14756998b1d96ef4ef5c074e33c30f8e08a82613a3553ca12855af5e0103a7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains a critical heuristic firing for a game hack redirector lure, pointing to malicious infrastructure. The document body and embedded URLs reinforce this, indicating a social engineering attempt to trick users into visiting a potentially harmful site. No scripts were extracted, but the presence of a malicious redirector suggests an attempt to deliver a second-stage payload or phish for credentials.

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/coin-master-spins-game-hack In PDF document text
    • https://elearning.man1padangpariaman.sch.id/__statics/gudangsoal/files/free-robux-no-download_GM431946152.pdfIn PDF document text
    • https://elearning.man1padangpariaman.sch.id/__statics/gudangsoal/files/coin-master-free-coins-and-spins-daily-summary_GM406889139.pdfIn PDF document text
    • https://elearning.man1padangpariaman.sch.id/__statics/gudangsoal/files/coin-master-fun-free-spins_GM406889139.pdfIn PDF document text
    • https://elearning.man1padangpariaman.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-i-39_GM431946152.pdfIn PDF document text
    • https://elearning.man1padangpariaman.sch.id/__statics/gudangsoal/files/free-robux-no-email_GM431946152.pdfIn PDF document text
    • https://elearning.man1padangpariaman.sch.id/__statics/gudangsoal/files/tiktok-followers-free-2021_GM835599320.pdfIn PDF document text
    • https://elearning.man1padangpariaman.sch.id/__statics/gudangsoal/files/minecraft-toolbox-premium-apk_GM479516143.pdfIn PDF document text
    • https://elearning.man1padangpariaman.sch.id/__statics/gudangsoal/files/minecraft-server-hacks_GM479516143.pdfIn PDF document text
    • https://elearning.man1padangpariaman.sch.id/__statics/gudangsoal/files/coin-master-spin-ml_GM406889139.pdfIn PDF document text
    • https://elearning.man1padangpariaman.sch.id/__statics/gudangsoal/files/free-robux-videos_GM431946152.pdfIn PDF document text
    • https://elearning.man1padangpariaman.sch.id/__statics/gudangsoal/files/free-exploits-for-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.man1padangpariaman.sch.id/__statics/gudangsoal/files/how-do-you-earn-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.man1padangpariaman.sch.id/__statics/gudangsoal/files/_GM479516143.pdfIn PDF document text
    • https://elearning.man1padangpariaman.sch.id/__statics/gudangsoal/files/free-links-for-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.man1padangpariaman.sch.id/__statics/gudangsoal/files/coin-master-claim-free-spins_GM406889139.pdfIn PDF document text
    • https://elearning.man1padangpariaman.sch.id/__statics/gudangsoal/files/roblox-fun-com-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.man1padangpariaman.sch.id/__statics/gudangsoal/files/free-robux-without-offers_GM431946152.pdfIn PDF document text
    • https://elearning.man1padangpariaman.sch.id/__statics/gudangsoal/files/how-to-hack-coin-master-using-es-filer_GM406889139.pdfIn PDF document text
    • https://elearning.man1padangpariaman.sch.id/__statics/gudangsoal/files/free-stuff-on-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.man1padangpariaman.sch.id/__statics/gudangsoal/files/original-roblox_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
font_00_sfnt_off0000325e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x325E 22804 bytes
SHA-256: 7a721a724e8eb21ab475f8cabc38d2938db40c584b662e7203955c716ae70f79
font_01_sfnt_off00006570.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6570 18008 bytes
SHA-256: b15e7f8da0838a6e4a017855d02c8a486f450db5f36fca14cd3b0cb8444cdf22

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