Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9d6533e521bcaa6…

MALICIOUS

PDF

44.3 KB Created: 2021-05-14 06:26:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d6cd71691939d76c5179bde5d9d7c685 SHA-1: 6adfa14964ef567e81979a649c66d17edec87da5 SHA-256: c9d6533e521bcaa685b5dda9efe404cc588403eedc9d9664426e74f9e3b7d0d7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, disguised as "free generators" for popular games. The document body also contains a prominent call-to-action to "CLICK HERE TO ACCES" a URL associated with game hacks. While no scripts were extracted, the embedded URLs and the lure strongly suggest a phishing or scam attempt, likely leading to further malware download or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

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/479516143/minecraft-java-free-game-hack In PDF document text
    • https://tena-g.hr/files/free-coins-coin-master-iphone_GM406889139.pdfIn PDF document text
    • https://www.tena-g.hr/files/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://tena-g.hr/files/monttechscom-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://tena-g.hr/files/ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.tena-g.hr/files/rblx-gg-free-robux_GM431946152.pdfIn PDF document text
    • https://tena-g.hr/files/robux-free-c_GM431946152.pdfIn PDF document text
    • https://tena-g.hr/files/link-for-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.tena-g.hr/files/coin-master-free-in-app-purchases-jailbreak_GM406889139.pdfIn PDF document text
    • https://tena-g.hr/files/coin-master-el-tiger-card-free_GM406889139.pdfIn PDF document text
    • https://tena-g.hr/files/are-minecraft-realms-free_GM479516143.pdfIn PDF document text
    • https://tena-g.hr/files/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.tena-g.hr/files/coin-master-free-spins-link-facebook_GM406889139.pdfIn PDF document text
    • https://tena-g.hr/files/coin-master-hack-2021-free_GM406889139.pdfIn PDF document text
    • https://tena-g.hr/files/coin-master-email-rewards-link_GM406889139.pdfIn PDF document text
    • https://tena-g.hr/files/minecraft-114-download_GM479516143.pdfIn PDF document text
    • https://tena-g.hr/files/free-robux-sites-2021_GM431946152.pdfIn PDF document text
    • https://tena-g.hr/files/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.tena-g.hr/files/free-coin-master-s_GM406889139.pdfIn PDF document text
    • https://www.tena-g.hr/files/coin-master-free-2021-spin-link_GM406889139.pdfIn PDF document text
    • https://www.tena-g.hr/files/can-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000048da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48DA 25316 bytes
SHA-256: 470aa27cbc60490ee413759183036adebf2b71763bf5d5e71d154bcbc6f9d941
font_01_sfnt_off00008253.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8253 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off00008c05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C05 17848 bytes
SHA-256: c651dee67b00b36100d0c208f30a7974f38e9c4fefacd489da3c8fda34869f62

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