Malicious PDF — malware analysis report

Static analysis result for SHA-256 b9539ff25a7dde52…

MALICIOUS

PDF

41.9 KB Created: 2021-05-17 13:07:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 23f056fe189ed6a1eedae583e8420c5b SHA-1: d05d46faddd63d4da1bbd56b4b2b0dca1cd64949 SHA-256: b9539ff25a7dde5288e3c26c97303bb9fad8b664ec61703eec2c346da2eef9bc
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links designed to lure users into clicking on what appears to be a game hack or generator. These links redirect to known malicious infrastructure, indicating a phishing or scam attempt. The document body and embedded URLs strongly suggest a social engineering tactic to drive traffic to potentially harmful content.

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-cheat-to-get-free-spins-game-hack In PDF document text
    • http://jenne-technik.de/images/coin-master-online-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • http://jenne-technik.de/images/bloxland-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://jenne-technik.de/images/coin-master-daily-link_GM406889139.pdfIn PDF document text
    • http://jenne-technik.de/images/coin-master-heaven-links-free-spins_GM406889139.pdfIn PDF document text
    • http://jenne-technik.de/images/www-roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://jenne-technik.de/images/roblox-bux-free_GM431946152.pdfIn PDF document text
    • http://jenne-technik.de/images/free-robux-hack-us_GM431946152.pdfIn PDF document text
    • http://jenne-technik.de/images/how-do-you-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://jenne-technik.de/images/daily-free-coin-and-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • http://jenne-technik.de/images/minecraft-complete-handbook_GM479516143.pdfIn PDF document text
    • http://jenne-technik.de/images/free-games-coin-master_GM406889139.pdfIn PDF document text
    • http://jenne-technik.de/images/mcpe-master-hack-unlimited-coins_GM406889139.pdfIn PDF document text
    • http://jenne-technik.de/images/archery-master-3d-hack-unlimited-coins-cheats_GM406889139.pdfIn PDF document text
    • http://jenne-technik.de/images/free-coin_GM406889139.pdfIn PDF document text
    • http://jenne-technik.de/images/download-hacked-games-com-coin-master_GM406889139.pdfIn PDF document text
    • http://jenne-technik.de/images/minecraft-launcher-download-free_GM479516143.pdfIn PDF document text
    • http://jenne-technik.de/images/roblox-18_GM431946152.pdfIn PDF document text
    • http://jenne-technik.de/images/arsenal-hacks-roblox_GM431946152.pdfIn PDF document text
    • http://jenne-technik.de/images/coin-master-free-spins-link-download-hack_GM406889139.pdfIn PDF document text
    • http://jenne-technik.de/images/free-promo-codes-for-robux_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_off00004a21.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A21 24420 bytes
SHA-256: 15565ce09c129ce734fe366fa660c45fc34ac2dfaf775443df16600826caf6c5
font_01_sfnt_off0000820d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x820D 18052 bytes
SHA-256: 99031f52a6b201c4974ba9c8c658527515774d5dd8e7ce964a5a3577c3d49f57