Malicious PDF — malware analysis report

Static analysis result for SHA-256 4456c6764966d38e…

MALICIOUS

PDF

39.2 KB Created: 2021-05-12 10:37:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-12
MD5: ee8d92708a473e13ae75c2321ee8bff7 SHA-1: 002084e9929bdf1fd0cb3a5cd1264a880c1100d7 SHA-256: 4456c6764966d38ef2026b84a97b775a13d50b8f06b07d927e108ee278425e1c
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to "hacking" a popular game, directing users to a URL associated with malicious redirector infrastructure. The embedded content and heuristics strongly suggest an attempt to lure users to a malicious site, likely for further exploitation or credential harvesting. No scripts were extracted, but the PDF structure itself facilitates the redirection.

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/406889139/how-to-hack-coin-master-game-hack In 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_off0000360f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x360F 24760 bytes
SHA-256: 2accbee83d2074e385d859aa5f3596ec6d3da7d72d3000fdc1282b8ac6b15e93
font_01_sfnt_off00006eb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EB7 2912 bytes
SHA-256: db212f55edd44ed73f70314c05b7bffd82bd980270bd9cba0354e7f82fc0dc3b
font_02_sfnt_off000078cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78CC 17880 bytes
SHA-256: 811ddb8557bc0f5be85009fa6d5ae0baa2b7fc09c58d91c5790597872cecd122

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