Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e086b60384df70e…

MALICIOUS

PDF

28.2 KB Created: 2021-07-21 05:31:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 0f05a5ed6033da3030bc7983f4c45c2f SHA-1: 757e512d406d9162223cabb06c4a50f6fe37fcaf SHA-256: 6e086b60384df70e181110c18f94a7d59757249f75a80f8df13af63d2142ba0e
130 Risk Score

Malware Insights

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

The PDF document contains a critical heuristic firing for a game hack lure, linking to known malicious redirector infrastructure. The embedded URL 'http://netcdn.tw/app/431946152/hack-robux-game-hack' is identified as malicious. While no scripts were explicitly extracted, the nature of the lure and the malicious URL suggest an attempt to redirect the user to a site that likely hosts further malicious content or exploits.

Machine Learning

  • Nyx PDF Classifier clean score 0.0329

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 http://netcdn.tw/app/431946152/hack-robux-game-hack In PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001c4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1C4D 21832 bytes
SHA-256: ea3b14d8962b82f4ea92e3edb7b09ed1ae27156ec3996af00aa75f28fc77366e
font_01_sfnt_off00004bf8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BF8 18432 bytes
SHA-256: 02af2aaaa36d5adc18e127424193c87fb896d1f2e6175a57ce63ca59ef207439

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