Malicious PDF — malware analysis report

Static analysis result for SHA-256 36509a2182991680…

MALICIOUS

PDF

36.6 KB Created: 2021-05-25 10:31:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 1247398b61bcc48a66a90267defa0862 SHA-1: 853f6aeff50f70ca49b30d89638cb118272584ba SHA-256: 36509a2182991680082b6d1b8a75a069ffdc6ef36867c9dcce682aff196d7bf8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains multiple links to redirector domains that ultimately lead to lures for game hacks and generators. The primary redirector URL is https://netcdn.xyz/app/479516143/minecraft-skins-download-free-game-hack, which is also present in the document body. The presence of multiple malicious links and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

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-skins-download-free-game-hack In PDF document text
    • http://www.notaioricci.it/images/free-tiktok-app_GM835599320.pdfIn PDF document text
    • http://www.notaioricci.it/images/lazyblocks-com-robux_GM431946152.pdfIn PDF document text
    • http://www.notaioricci.it/images/rblx-city-free-robux_GM431946152.pdfIn PDF document text
    • http://www.notaioricci.it/images/robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://www.notaioricci.it/images/minecraft-gun-mod-download-free_GM479516143.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_002_off00003561.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3561 24632 bytes
SHA-256: 7dcf6f4017f8137a0d3fafb0b514e961960ff5c70897453d78f0ab55eb2440e8
font_01_sfnt_off00006d72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D72 18460 bytes
SHA-256: 54d3aeb7b3beebea3cfa48561b043312cf5d8c01a954df644a6f0691dd3f9e10

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