Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a34ddc854abc70e…

MALICIOUS

PDF

37.1 KB Created: 2021-05-16 21:08:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 84ea7b32773f420fa7426c20c45679aa SHA-1: 8409380f13e0bb0a24b37a17f629ea7455cda831 SHA-256: 6a34ddc854abc70e9f0844e767eb53e614d1bec592f739f4729b07ec9f6efa55
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple heuristics indicating malicious redirector links, specifically targeting users with a lure for free game hacks. The document body explicitly contains the URL 'https://netcdn.xyz/app/431946152/how-to-get-free-robux-com-game-hack', which is identified as a malicious redirector. This suggests the primary goal is to redirect the user to a potentially harmful site.

Machine Learning

  • Nyx PDF Classifier clean score 0.0334

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/how-to-get-free-robux-com-game-hack In 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_off00003281.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3281 26628 bytes
SHA-256: 7c21a0dc880808a12bab659bb16958296d66cc60a98fcd905252ec0c74598e3f
font_01_sfnt_off00006ec1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EC1 18544 bytes
SHA-256: 592d037155b891bbb2f70d3f14a8a619d2fef64eb32d8f0fc2e46f6e8e925839

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