Malicious PDF — malware analysis report

Static analysis result for SHA-256 289f0c6da0f085ed…

MALICIOUS

PDF

42.4 KB Created: 2021-05-14 13:03:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f7871477fdb5e4ded6fd9985d61e3b68 SHA-1: a36288ec1b4132f3cf82ba728bdd2255882c6414 SHA-256: 289f0c6da0f085ed69867398ca26613ca2e92de1b1faa7d846411c4be8e0a810
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains multiple links to malicious redirectors and websites that promise "game hacks" or "generators", indicating a lure-based attack pattern. The ML classifier also flagged the PDF as malicious. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest an attempt to redirect users to potentially harmful content, likely as part of a phishing or scam campaign.

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/spin-and-coin-game-hack In PDF document text
    • http://gestibrok.com/images/free-coins-on-coin-master-generator_GM406889139.pdfIn PDF document text
    • http://gestibrok.com/images/free-coin-master-spins-2021-link_GM406889139.pdfIn PDF document text
    • http://gestibrok.com/images/how-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://gestibrok.com/images/roblox-admin-hack_GM431946152.pdfIn PDF document text
    • http://gestibrok.com/images/create-minecraft-server-free_GM479516143.pdfIn PDF document text
    • http://gestibrok.com/images/roblox-hack-download-pc_GM431946152.pdfIn PDF document text
    • http://gestibrok.com/images/free-spins-coin-master-2021-no-verification_GM406889139.pdfIn PDF document text
    • http://gestibrok.com/images/free-robux-download_GM431946152.pdfIn PDF document text
    • http://gestibrok.com/images/hacks-master-coin_GM406889139.pdfIn PDF document text
    • http://gestibrok.com/images/free-robux-hacker-us_GM431946152.pdfIn PDF document text
    • http://gestibrok.com/images/how-to-hack-any-roblox-account_GM431946152.pdfIn PDF document text
    • http://gestibrok.com/images/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • http://gestibrok.com/images/static-moonactive-net-rewards-2021_GM406889139.pdfIn PDF document text
    • http://gestibrok.com/images/daily-coin-master-link_GM406889139.pdfIn PDF document text
    • http://gestibrok.com/images/coin-master-free-spins-1-coin-master_GM406889139.pdfIn PDF document text
    • http://gestibrok.com/images/minecraft-free-download-2021_GM479516143.pdfIn PDF document text
    • http://gestibrok.com/images/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
    • http://gestibrok.com/images/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://gestibrok.com/images/what-games-give-you-robux_GM431946152.pdfIn PDF document text
    • http://gestibrok.com/images/best-site-for-free-coin-master-free-spin-link_GM406889139.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_off00004af8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AF8 26388 bytes
SHA-256: 1bab07cc444a5c7e9e9b3363d7fdcc87362cd3bc03e0dda9307c8b06f2488c62
font_01_sfnt_off00008592.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8592 17564 bytes
SHA-256: 1aa6e9a1125ffd8bd76459eac5be06ac3adbb2b38f3f38867c691e3d452af4d4

Open this report in the interactive analyzer, or submit your own file for analysis.