Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c655cded395565a…

MALICIOUS

PDF

34.9 KB Created: 2021-07-06 03:45:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b7c11f1810e8a313fa85ad6559781533 SHA-1: 09ade80332b9299d25b503b50e8c8e9175237d9f SHA-256: 9c655cded395565af59768e092106467a40bc182bb59460876ab27302d8f735b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document employs a common lure for game-related cheats and currency, directing users to a known malicious redirector. The embedded links, such as 'http://netcdn.tw/app/406889139/coin-master-hack-tool-game-hack', are designed to lead victims to potentially harmful content or further malware. The presence of multiple similar links reinforces the malicious intent of this document.

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-hack-tool-game-hack In PDF document text
    • http://library.unissula.ac.id/fk/repository/free-coin-master-spins-link_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fk//repository/how-to-earn-robux_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/hack-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/coin-master-attack-block-hack_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/how-to-get-free-robux-no-scam_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk//repository/coin-master-invite-friends-hack_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/free-roblox-card-codes_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/roblox-20-left-arm-free_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk//repository/no-verification-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/start-earning-free-robux-today_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/free-robux-and-tix-tricks-amp_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk//repository/free-coins-for-coin-master-blogger_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fk//repository/free-robux-gift-card_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/2021-robux-free_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/pubg-uc-kaise-kamaye_GM1330123889.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/how-to-hack-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/minecraft-free-download-apk-softonic_GM479516143.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/free-codes-get-robux_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/real-robux-generator_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/free-robux-without-installing-anything_GM431946152.pdfIn PDF document text
    • https://www.urcouponsdeal.com/2019/03/coin-master-free-spin-and-coin-links.htmlIn 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
stream_002_off000032a7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32A7 23008 bytes
SHA-256: db478b88618284e832046779e309e1c186a3e15831c41668f73c8a4952baf5b2
font_01_sfnt_off00006658.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6658 18080 bytes
SHA-256: d73e4cba5eae4963415d942f6085a7e87ee20f191a57df75a2e3d628f5bdbb21

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