Malicious PDF — malware analysis report

Static analysis result for SHA-256 3cd7e807442561a5…

MALICIOUS

PDF

31.1 KB Created: 2021-07-22 12:54:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9fe492fd122a6997cc1fabc0ba21d902 SHA-1: a52cc7fc749ef70a410e9e8456cfaa58c6a4b7b5 SHA-256: 3cd7e807442561a57030b2e28b3bf6fbd9f3ccc54ef6828aa7cf377a9b85cece
130 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically disguised as a 'free generator / game hack'. The embedded URL, http://netcdn.tw/app/479516143/is-minecraft-free-on-xbox-game-hack, is associated with malicious redirector infrastructure. The document body also contains a clear call-to-action to 'CLICK HERE TO ACCESS MINECRAFT GENERATOR', reinforcing the lure.

Machine Learning

  • Nyx PDF Classifier clean score 0.0564

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/479516143/is-minecraft-free-on-xbox-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
font_00_sfnt_off00002543.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2543 22704 bytes
SHA-256: 972ed5ee4a372404b6b3dabba20ec721407231cccece82e78616581d02c97256
font_01_sfnt_off00005814.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5814 18304 bytes
SHA-256: 19d9535fd2d352d2586ba99854d4ae80d513f2901e16ae506060a78b50b635a9