Malicious PDF — malware analysis report

Static analysis result for SHA-256 25f0a70ee5e8a5d9…

MALICIOUS

PDF

36.9 KB Created: 2021-05-16 09:10:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2c5d937595da8f67bf1fa475de80ca4f SHA-1: 3a9f7838fcb2013c052ea3b60a5b78324f1bf079 SHA-256: 25f0a70ee5e8a5d92ec565f43999b835b1e523c5f8463826de1cd3e65daac763
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a critical heuristic firing for a game hack redirector lure, pointing to a malicious URL. The document body also contains similar text and the malicious URL, reinforcing the lure. While no scripts were explicitly extracted, the nature of the PDF and the embedded URL suggest it's designed to trick users into downloading a secondary payload.

Machine Learning

  • Nyx PDF Classifier clean score 0.0313

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/free-unlimited-coin-master-400-spin-link-game-hack In PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 6

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
stream_003_off0000329e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x329E 25120 bytes
SHA-256: 480312339708fc98bee669a2f934e8e35971532db58fb9a8a1acd443a4a29c54
font_01_sfnt_off00006ce1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CE1 18984 bytes
SHA-256: 2e007fc84fc568f88879723ba48bdd06936c094fc864f4c5a558b00572ac3444

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