Malicious PDF — malware analysis report

Static analysis result for SHA-256 25dd5aeaa436bd01…

MALICIOUS

PDF

35.2 KB Created: 2021-05-22 17:53:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 11ea093a3e7f71d71fa7ab2fc6afcb76 SHA-1: 68744956582031d9a5df1f45b1bf44c6a12b43f6 SHA-256: 25dd5aeaa436bd01e1eb7b23ca85446c2bea51ff5dba50bcbb5b23bc8b9c44d3
130 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a game hack redirect lure, pointing to malicious infrastructure. The document body also contains a prominent call to action with a URL that is flagged as malicious. This suggests the primary goal is to trick the user into visiting a compromised site, likely to download further malware or engage in a scam.

Machine Learning

  • Nyx PDF Classifier clean score 0.0718

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/479516143/minecraft-windows-10-free-with-java-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_002_off00002eae.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2EAE 24744 bytes
SHA-256: 7a5711bcde459fdd3a7a655a81f6c95b59594b4be58f26ec3bf8bd587124a18d
font_01_sfnt_off0000667a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x667A 18972 bytes
SHA-256: ec0d7e7957d6d3ec4a312ebe7c12434b242d64f4f861d318395950ba1ef4cb73

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