Malicious PDF — malware analysis report

Static analysis result for SHA-256 78088359be1fc649…

MALICIOUS

PDF

44.1 KB Created: 2021-05-15 02:38:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d1c2f601caab7fef3308778aea09a3e1 SHA-1: 4af4b1d9225509da8bbe9183b30cca9726f4f8ba SHA-256: 78088359be1fc649853078532cb289bc074f45e35399c989a253eccbee3d2e0b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to malicious infrastructure, specifically promoting 'free generator / game hack' lures. The ML classifier also flagged this PDF as malicious with high confidence. The embedded links suggest an attempt to trick users into visiting potentially harmful websites, likely for credential harvesting or malware distribution.

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/431946152/how-to-get-free-roebucks-in-roblox-game-hack In PDF document text
    • http://initiatiev.nl/images/how-many-free-spin-links-is-there-for-coin-master_GM406889139.pdfIn PDF document text
    • http://initiatiev.nl/images/free-coin-master-gifts_GM406889139.pdfIn PDF document text
    • http://initiatiev.nl/images/how-to-get-free-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://initiatiev.nl/images/hacks-master-coin_GM406889139.pdfIn PDF document text
    • http://initiatiev.nl/images/how-to-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://initiatiev.nl/images/coin-master-heaven_GM406889139.pdfIn PDF document text
    • http://initiatiev.nl/images/coin-master-time-hack_GM406889139.pdfIn PDF document text
    • http://initiatiev.nl/images/minecraft-pe-apk_GM479516143.pdfIn PDF document text
    • http://initiatiev.nl/images/free-robux-without-offers_GM431946152.pdfIn PDF document text
    • http://initiatiev.nl/images/coin-master-free-spins-fb_GM406889139.pdfIn PDF document text
    • http://initiatiev.nl/images/how-to-get-free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://initiatiev.nl/images/minecraft-windows-10-edition-free-with-java_GM479516143.pdfIn PDF document text
    • http://initiatiev.nl/images/free-roblox-accounts-with-robux-that-work-not-banned_GM431946152.pdfIn PDF document text
    • http://initiatiev.nl/images/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
    • http://initiatiev.nl/images/www-free-robux_GM431946152.pdfIn PDF document text
    • http://initiatiev.nl/images/coin-master-free-spin-daily-link_GM406889139.pdfIn PDF document text
    • http://initiatiev.nl/images/coin-master-spin-hack-without-verification_GM406889139.pdfIn PDF document text
    • http://initiatiev.nl/images/what-is-coin-master-app_GM406889139.pdfIn PDF document text
    • http://initiatiev.nl/images/free-robux-microsoft_GM431946152.pdfIn PDF document text
    • http://initiatiev.nl/images/free-robux-codes-2021_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_off00004a5e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A5E 27836 bytes
SHA-256: 96fd862133f01a2ec5709e2192b8f8431d18424bffdc1b56eb37af7f2d9f5fd4
font_01_sfnt_off0000893d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x893D 18524 bytes
SHA-256: 6a418ba74ae5328d563bd5a35238a9b9c08fdc9000a9cbda284a157467e29bc0

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