Malicious PDF — malware analysis report

Static analysis result for SHA-256 19aae4b772716031…

MALICIOUS

PDF

40.7 KB Created: 2021-05-14 21:13:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 4c89100b1454efad91369c4255cac387 SHA-1: 7bdf6fb6fb9d57612d33a776c406ca5f4eb6365f SHA-256: 19aae4b77271603160747ba07a2875d49d64c066954a641feb67958e91c0a3b5
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, specifically promoting 'game hacks' and 'generators' to lure users. The primary redirector URL is https://netcdn.xyz/app/406889139/coin-master-link-spin-game-hack, which then leads to other PDF files hosted on only1you.ru. This indicates a phishing or scam campaign designed to trick users into visiting malicious sites.

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-link-spin-game-hack In PDF document text
    • http://only1you.ru/images/free-links-coin-master_GM406889139.pdfIn PDF document text
    • http://only1you.ru/images/coin-master-free-account_GM406889139.pdfIn PDF document text
    • http://only1you.ru/images/coin-master-free-online_GM406889139.pdfIn PDF document text
    • http://only1you.ru/images/minecraft-pe-hacks_GM479516143.pdfIn PDF document text
    • http://only1you.ru/images/roblox-com-r_GM431946152.pdfIn PDF document text
    • http://only1you.ru/images/apps-for-free-robux_GM431946152.pdfIn PDF document text
    • http://only1you.ru/images/hacks-for-roblox-prison-life_GM431946152.pdfIn PDF document text
    • http://only1you.ru/images/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://only1you.ru/images/free-minecraft-thumbnails_GM479516143.pdfIn PDF document text
    • http://only1you.ru/images/coin-master-32-hack-apk-download_GM406889139.pdfIn PDF document text
    • http://only1you.ru/images/coin-master-hack-2021-apk-download_GM406889139.pdfIn PDF document text
    • http://only1you.ru/images/free-robux-generator-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://only1you.ru/images/www-coin-master-hack-xyz_GM406889139.pdfIn PDF document text
    • http://only1you.ru/images/how-to-earn-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://only1you.ru/images/free-robux-glitch_GM431946152.pdfIn PDF document text
    • http://only1you.ru/images/coinmaster-gps-user-review-coinmaster-coin-master-hack-pagedemo-index_GM406889139.pdfIn PDF document text
    • http://only1you.ru/images/minecraft-survival-free_GM479516143.pdfIn PDF document text
    • http://only1you.ru/images/coin-master-400-spin-link_GM406889139.pdfIn PDF document text
    • http://only1you.ru/images/free-minecraft-printables_GM479516143.pdfIn PDF document text
    • http://only1you.ru/images/roblox-free-robux-no-verification_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
stream_003_off000047ae.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47AE 23872 bytes
SHA-256: 692f71f822b48bb5c21bad70b7597d0546087d1f78443d88ec90a81b6aeaa169
font_01_sfnt_off00007db6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DB6 17892 bytes
SHA-256: 7aa3b039b4dd2eaa3c78c28a8976d594c7bc5201e2dd003047650d51ef6c46d2

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