Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea6acfaa968e2904…

MALICIOUS

PDF

45.5 KB Created: 2021-05-13 14:06:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8061d33745f4009f6d16f7fae4df0992 SHA-1: c8afa086573d263164ca938f85b92907baf3c5bf SHA-256: ea6acfaa968e29046aa9af6c0be861e836bd71b4e007633c5baf5b0e37813637
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, specifically promoting 'free generator' and 'game hack' lures. The primary redirector URL identified is https://netcdn.xyz/app/479516143/free-minecraft-thumbnails-game-hack. The document's content and heuristics strongly suggest a phishing or scam attempt designed to lead users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

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/free-minecraft-thumbnails-game-hack In PDF document text
    • http://www.siahotel.com/userfiles/files/free-robux-working_GM431946152.pdfIn PDF document text
    • http://www.siahotel.com/userfiles/files/free-roblox-accounts-with-robux-2021_GM431946152.pdfIn PDF document text
    • http://www.siahotel.com/userfiles/files/google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.siahotel.com/userfiles/files/how-to-get-minecraft-for-free-on-xbox_GM479516143.pdfIn PDF document text
    • http://www.siahotel.com/userfiles/files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://www.siahotel.com/userfiles/files/robux-com-free_GM431946152.pdfIn PDF document text
    • http://www.siahotel.com/userfiles/files/coin-master-game-free-play-online_GM406889139.pdfIn PDF document text
    • http://www.siahotel.com/userfiles/files/how-do-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.siahotel.com/userfiles/files/free-robux-pin-codes_GM431946152.pdfIn PDF document text
    • http://www.siahotel.com/userfiles/files/free-premium-roblox_GM431946152.pdfIn PDF document text
    • http://www.siahotel.com/userfiles/files/get-free-robux-now_GM431946152.pdfIn PDF document text
    • http://www.siahotel.com/userfiles/files/free-free-robux_GM431946152.pdfIn PDF document text
    • http://www.siahotel.com/userfiles/files/roblox-free-rubox_GM431946152.pdfIn PDF document text
    • http://www.siahotel.com/userfiles/files/free-robux-without-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://www.siahotel.com/userfiles/files/coin-master-free-gold-cards-link-2021_GM406889139.pdfIn PDF document text
    • http://www.siahotel.com/userfiles/files/corn-master_GM406889139.pdfIn PDF document text
    • http://www.siahotel.com/userfiles/files/hack-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.siahotel.com/userfiles/files/how-to-download-minecraft-for-free-on-android_GM479516143.pdfIn PDF document text
    • http://www.siahotel.com/userfiles/files/free-robux-codes_GM431946152.pdfIn PDF document text
    • http://www.siahotel.com/userfiles/files/free-roblox-dominus_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
stream_003_off00004c12.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C12 25320 bytes
SHA-256: f792af9dd275614f96ecbc0102b7a77c58fec17a86470a0fd39cef6f2cf83d66
font_01_sfnt_off0000858c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x858C 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off00008f3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F3E 18368 bytes
SHA-256: 85a02e6fcaecceb391bd1a2e9ef36225352b9e1f533fa420e6bae34b60a7da86

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