Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c47c1b08ae1f5eb…

MALICIOUS

PDF

42.5 KB Created: 2021-05-19 08:59:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6d634fa358f76bba90ff714a30378acb SHA-1: 5291077d1e5c2d0e274af5d17c7bff656bce9b50 SHA-256: 9c47c1b08ae1f5ebbf7a2ffbc111c01b81dbf94a2058ffbd71631dc31d646b17
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to websites offering 'free game hacks' and 'free currency', which are common lures for phishing or malware distribution. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' specifically identifies these links as malicious redirectors. While no scripts were explicitly extracted, the nature of the lures and the embedded URLs suggest a high likelihood of leading users to malicious content or further infection vectors.

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/479516143/can-you-get-minecraft-for-free-game-hack In PDF document text
    • https://www.vista-design.hr/files/free-minecraft-svg-cutting-files_GM479516143.pdfIn PDF document text
    • http://www.vista-design.hr/files/how-to-get-free-robux-without-email_GM431946152.pdfIn PDF document text
    • https://www.vista-design.hr/files/coin-master-spins-hack-2021_GM406889139.pdfIn PDF document text
    • https://www.vista-design.hr/files/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • https://www.vista-design.hr/files/free-robux-offers_GM431946152.pdfIn PDF document text
    • http://www.vista-design.hr/files/roblox-games-with-free-boombox_GM431946152.pdfIn PDF document text
    • https://www.vista-design.hr/files/how-to-legally-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.vista-design.hr/files/how-to-buy-robux-for-free_GM431946152.pdfIn PDF document text
    • http://www.vista-design.hr/files/instant-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.vista-design.hr/files/coin-master-free-spins-and-coins-blogspot_GM406889139.pdfIn PDF document text
    • http://www.vista-design.hr/files/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • https://www.vista-design.hr/files/coin-master-levels_GM406889139.pdfIn PDF document text
    • https://www.vista-design.hr/files/free-tiktok-engagement_GM835599320.pdfIn PDF document text
    • http://www.vista-design.hr/files/moonactive-free-spins-link_GM406889139.pdfIn PDF document text
    • http://www.vista-design.hr/files/free-executor-roblox_GM431946152.pdfIn PDF document text
    • http://www.vista-design.hr/files/free-coin-master-spins-without-human-verification_GM406889139.pdfIn PDF document text
    • http://www.vista-design.hr/files/microsoft-bing-robux_GM431946152.pdfIn PDF document text
    • http://www.vista-design.hr/files/coin-master-hack-app-2021_GM406889139.pdfIn PDF document text
    • http://www.vista-design.hr/files/coin-master-daily-free-spins_GM406889139.pdfIn PDF document text
    • https://www.vista-design.hr/files/coin-master_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_off0000495f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x495F 25868 bytes
SHA-256: cc54b28241ea92ce920f0e720b42907f86290a40b82713fef5f7963807ff44d6
font_01_sfnt_off000084a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84A1 18012 bytes
SHA-256: 86c2b624a8a37ca41486e489d8c9cfdbe0e5db220f130324253b481d58b189c6

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