Malicious PDF — malware analysis report

Static analysis result for SHA-256 f65ddd2a69d07670…

MALICIOUS

PDF

42.8 KB Created: 2021-05-13 20:38:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: acb1463614b17eee1a89d646197bb9a8 SHA-1: 5852b561e60b0c74a0387f06936df353f68b42d9 SHA-256: f65ddd2a69d076709b164adbf003fe96a7bd6826cfd0c3c312f081b3ba96991b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to game hacks and free items to entice users. It contains multiple links, with a primary one pointing to known malicious redirector infrastructure. The document body, though partially obfuscated, contains references to game-related terms and URLs, reinforcing the lure. The presence of embedded URLs and the specific heuristic firings strongly indicate a malicious redirector workflow designed to lead users to potentially harmful content.

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/431946152/free-roblox-accounts-with-robux-game-hack In PDF document text
    • http://www.laborvetro.org/images/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://www.laborvetro.org/images/what-is-a-robux_GM431946152.pdfIn PDF document text
    • http://www.laborvetro.org/images/download-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.laborvetro.org/images/gamesofficenet-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://www.laborvetro.org/images/www-free-robux-com_GM431946152.pdfIn PDF document text
    • http://www.laborvetro.org/images/coin-master-free-link-blogspot_GM406889139.pdfIn PDF document text
    • http://www.laborvetro.org/images/bad-minecraft-free_GM479516143.pdfIn PDF document text
    • http://www.laborvetro.org/images/100-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.laborvetro.org/images/minecraft-free-download-ipad_GM479516143.pdfIn PDF document text
    • http://www.laborvetro.org/images/coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.laborvetro.org/images/free-spins-in-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.laborvetro.org/images/how-do-you-get-free-roebucks_GM431946152.pdfIn PDF document text
    • http://www.laborvetro.org/images/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.laborvetro.org/images/is-coin-master-hacks-safe_GM406889139.pdfIn PDF document text
    • http://www.laborvetro.org/images/minecraft-hacks-18-9_GM479516143.pdfIn PDF document text
    • http://www.laborvetro.org/images/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://www.laborvetro.org/images/coin-master-game-hack-app-download_GM406889139.pdfIn PDF document text
    • http://www.laborvetro.org/images/can-you-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://www.laborvetro.org/images/free-robux-com-2021_GM431946152.pdfIn PDF document text
    • http://www.laborvetro.org/images/free-roblox-app_GM431946152.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_off00004a3d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A3D 24932 bytes
SHA-256: 0b5811115a5191a4655b91cca2b46e0535a06cee6dbc6e0cd071f7ab6197fe07
font_01_sfnt_off000083d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83D3 18676 bytes
SHA-256: 4ebcf990001f3b6d5b8f187221ce9c528a6bcbfca241b55ad06a715c23028265

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