Malicious PDF — malware analysis report

Static analysis result for SHA-256 35e6195dcbafc6c2…

MALICIOUS

PDF

40.1 KB Created: 2021-05-17 23:01:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5aa5c6e0c96b28811428cc9136311810 SHA-1: cee20e15ace394f10b3190c0fe69b0cbf358156c SHA-256: 35e6195dcbafc6c29d0a26768e37d95dda36414f5803b07bbe59b7a14d2b8115
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to a known malicious redirector infrastructure, masquerading as a 'free generator' or 'game hack'. The document body and heuristics indicate a lure to download or access further malicious content. While no scripts were directly extracted, the PDF structure and embedded URLs suggest an attempt to trick the user into navigating to a malicious site, likely to download a second-stage payload.

Machine Learning

  • Nyx PDF Classifier clean score 0.0128

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-robux-codes-2021-game-hack In PDF document text
    • http://wolfzscriptsIn 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_off00003715.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3715 24872 bytes
SHA-256: ca953a625ac9ff803e14cef7369c30297bc8ef2cc7aab2c9e28ebc434928532d
font_01_sfnt_off0000706f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x706F 2832 bytes
SHA-256: 77ae1c4cffa647a8fd533dfa4102e94364989f9e80b9cd131876e9d1005899a2
font_02_sfnt_off00007a1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A1F 18588 bytes
SHA-256: 0c0011b59677f21f59199ad7d2a82948105ed154610022cedcbab6f052c91d55

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