Malicious PDF — malware analysis report

Static analysis result for SHA-256 74a02ed950d0086b…

MALICIOUS

PDF

40.9 KB Created: 2021-05-21 03:13:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: bd3ba5cfc99ad35ed0b899c5817d84bb SHA-1: d30824fc63d8d78900bdcddcae217552dd515e55 SHA-256: 74a02ed950d0086b3c1df09a6efa400af8fd89d2aec5d67a83c5bf8f5fb8a91c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and lures users with themes like 'free Robux' and 'game hacks'. The primary malicious URL identified is https://netcdn.xyz/app/431946152/roblox-games-that-give-you-free-robux-game-hack. While no scripts were explicitly extracted, the PDF structure and heuristic firings strongly suggest it's designed to redirect users to potentially harmful websites, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7445

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/roblox-games-that-give-you-free-robux-game-hack In PDF document text
    • http://rose-mari.com.ua/images/tiktok-free-music-library_GM835599320.pdfIn PDF document text
    • http://rose-mari.com.ua/images/tiktok-free-overlays_GM835599320.pdfIn PDF document text
    • http://rose-mari.com.ua/images/free-robux-for-kids_GM431946152.pdfIn PDF document text
    • http://rose-mari.com.ua/images/roblox-2021-hack_GM431946152.pdfIn PDF document text
    • http://rose-mari.com.ua/images/how-to-make-clothes-on-roblox-for-free_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_002_off00003283.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3283 26488 bytes
SHA-256: 7a0834b7d7007f06ab06801c318ddf19989db9285148019e8242ba640b0f6ca1
font_01_sfnt_off00006ed4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6ED4 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_02_sfnt_off00007be6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BE6 19240 bytes
SHA-256: af18d9cb6acc741702b59c78a5d378fdddaa2c6ad6fac2421576a1d1ac5dc213

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