Malicious PDF — malware analysis report

Static analysis result for SHA-256 c62c22d46b540277…

MALICIOUS

PDF

41.5 KB Created: 2021-05-13 12:08:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 21954cc19b8e861b52abbff828fc228c SHA-1: b12d7730e0ef5cca7074adccc6fa0fb8f9b297fc SHA-256: c62c22d46b540277944dbd8920fe215c5a9d44a8b3e1f07ef7dad3c80f291287
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors, disguised as lures for game hacks and free currency. The primary malicious link identified is https://netcdn.xyz/app/406889139/coin-master-free-spins-hack-ios-game-hack. The document's structure and embedded links strongly suggest it is designed to lead the user to a malicious website, likely for further exploitation or scamming. No scripts were extracted, but the PDF's nature points to a social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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.xyz/app/406889139/coin-master-free-spins-hack-ios-game-hack In PDF document text
    • https://library.um-sorong.ac.id/repository/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://library.um-sorong.ac.id/repository/coinmaster-hack_GM406889139.pdfIn PDF document text
    • https://library.um-sorong.ac.id/repository/easiest-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://library.um-sorong.ac.id/repository/coin-master-free-chest-link_GM406889139.pdfIn PDF document text
    • https://library.um-sorong.ac.id/repository/how-to-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • https://library.um-sorong.ac.id/repository/free-robux-codes_GM431946152.pdfIn PDF document text
    • https://library.um-sorong.ac.id/repository/earn-robux-sites_GM431946152.pdfIn PDF document text
    • https://library.um-sorong.ac.id/repository/coin-master-heaven-free-spins_GM406889139.pdfIn PDF document text
    • https://library.um-sorong.ac.id/repository/roblox-free-clothes-hack_GM431946152.pdfIn PDF document text
    • https://library.um-sorong.ac.id/repository/free-coins-and-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://library.um-sorong.ac.id/repository/minecraft-java-for-free_GM479516143.pdfIn PDF document text
    • https://library.um-sorong.ac.id/repository/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://library.um-sorong.ac.id/repository/mobihack-roblox-hack_GM431946152.pdfIn PDF document text
    • https://library.um-sorong.ac.id/repository/free-robux-no-generator_GM431946152.pdfIn PDF document text
    • https://library.um-sorong.ac.id/repository/master-coin-free-spin_GM406889139.pdfIn PDF document text
    • https://library.um-sorong.ac.id/repository/coin-master-date-and-time-hack_GM406889139.pdfIn PDF document text
    • https://library.um-sorong.ac.id/repository/free-minecraft-coins_GM479516143.pdfIn PDF document text
    • https://library.um-sorong.ac.id/repository/free-clothing-on-roblox_GM431946152.pdfIn PDF document text
    • https://library.um-sorong.ac.id/repository/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://library.um-sorong.ac.id/repository/free-robux-site_GM431946152.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
stream_003_off000046a9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x46A9 25744 bytes
SHA-256: 53d78186007c465e99b1b837649e291be3f55f268b638ac81ccb242f62d8a92f
font_01_sfnt_off000080c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80C0 18056 bytes
SHA-256: cf09809f84b3ac791db74d1bb07130b21cb8066fa4ad9e5b41b3fe91ed893d5a

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