Malicious PDF — malware analysis report

Static analysis result for SHA-256 abe71574fbbe09bc…

MALICIOUS

PDF

43.8 KB Created: 2021-05-14 10:39:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c1123707ffb11b51017aad0283a5bb51 SHA-1: 0961f4300e5ee510d771f96f76d0e48cc7aa9990 SHA-256: abe71574fbbe09bca10d9917344be5e589fff0098c9bc09395511a95c47939dd
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links designed to lure users into clicking on what appears to be a game hack or free currency generator. One of these links, 'https://netcdn.xyz/app/406889139/twitter-coin-master-free-spins-link-game-hack', is identified as a known malicious redirector. The document body, though heavily obfuscated, contains references to this URL and other similar-looking URLs hosted on 'prodex-holz.cz', suggesting a phishing or scam campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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/twitter-coin-master-free-spins-link-game-hack In PDF document text
    • https://www.prodex-holz.cz/images/roblox-promo-codes-2021-robux_GM431946152.pdfIn PDF document text
    • https://www.prodex-holz.cz/images/free-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.prodex-holz.cz/images/www-roblox-com-robux-free_GM431946152.pdfIn PDF document text
    • https://www.prodex-holz.cz/images/pig-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • https://www.prodex-holz.cz/images/minecraft-windows-10-free_GM479516143.pdfIn PDF document text
    • https://www.prodex-holz.cz/images/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • https://www.prodex-holz.cz/images/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
    • https://www.prodex-holz.cz/images/minecraft-hacks-xbox_GM479516143.pdfIn PDF document text
    • https://www.prodex-holz.cz/images/roblox-tix-generator_GM431946152.pdfIn PDF document text
    • https://www.prodex-holz.cz/images/free-games-like-roblox_GM431946152.pdfIn PDF document text
    • https://www.prodex-holz.cz/images/how-do-we-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.prodex-holz.cz/images/coin-master-card-hack-app_GM406889139.pdfIn PDF document text
    • https://www.prodex-holz.cz/images/how-to-get-free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • https://www.prodex-holz.cz/images/minecraft-iphone-free_GM479516143.pdfIn PDF document text
    • https://www.prodex-holz.cz/images/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
    • https://www.prodex-holz.cz/images/roblox-avatar-maker-free_GM431946152.pdfIn PDF document text
    • https://www.prodex-holz.cz/images/free-spin-coin_GM406889139.pdfIn PDF document text
    • https://www.prodex-holz.cz/images/roblox-generator-com_GM431946152.pdfIn PDF document text
    • https://www.prodex-holz.cz/images/minecraft-free-online-games_GM479516143.pdfIn PDF document text
    • https://www.prodex-holz.cz/images/how-to-get-free-robux-by-playing-games_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_off00004d5a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4D5A 26412 bytes
SHA-256: 4594db531652e3a7c6b50e73ee3506fea21d3df788624d4f84204658b78ff2a9
font_01_sfnt_off0000890a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x890A 18220 bytes
SHA-256: 52ffbd88cc2cac306fe82121e7a954d434fc7a4bd2ad0f2292b5f4c74619d21b

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