Malicious PDF — malware analysis report

Static analysis result for SHA-256 d32259e25e4a69c9…

MALICIOUS

PDF

36.6 KB Created: 2021-05-17 04:00:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d17a6df29339c3de61ebec04ff38192d SHA-1: 0e391ee546a68310963cab412d77224a0b0cdbac SHA-256: d32259e25e4a69c95d05061ec571c45b96b01e6b6b8f2046f5c7d87517b8de7b
130 Risk Score

Malware Insights

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

The PDF document contains embedded links that redirect to a malicious URL, presented as a 'free generator' or 'game hack'. This lure is intended to trick the user into downloading a potentially malicious payload. The document body and heuristics strongly indicate a social engineering tactic to facilitate further compromise.

Machine Learning

  • Nyx PDF Classifier clean score 0.0312

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/406889139/100-free-spins-coin-master-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_003_off000033ba.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x33BA 25616 bytes
SHA-256: e0159217bdad651b5eef8717af10f79b2fa126540fa1f41f28ac282837999f05
font_01_sfnt_off00006e49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E49 18164 bytes
SHA-256: 9bc61af2acbda784231945e40c4a4bb5d6810b0d04641be6b37b2cdd3c5b78bc

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