Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6673712466d34dc…

MALICIOUS

PDF

35.6 KB Created: 2021-05-13 02:31:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c1b1b5968a7ba2a612f0708ad533c895 SHA-1: 7ddd71752209e0e23c299f51c56715f83e51abf9 SHA-256: d6673712466d34dc5f0713f7f8b87d6daab36924445a0480ab19c49d22747cda
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 known malicious infrastructure, specifically promoting a 'Coin Master Online Hack'. The document body text and heuristic firings indicate a lure to a game hack generator, which is a common social engineering tactic. The embedded URL is the primary indicator of malicious intent, likely leading to a further stage of compromise.

Machine Learning

  • Nyx PDF Classifier clean score 0.0265

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/coin-master-online-hack-2021-game-hack In PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 7

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_off00003274.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3274 24140 bytes
SHA-256: 7690db7f91bd8b34892b92b2533402ab790bddee02a13728ea692cdaa5cd3b80
font_01_sfnt_off000069b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69B6 18192 bytes
SHA-256: c749125a48438900fb9d2e9c83f982021f7c7aadfa00f74e48b95002be6a303d

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