Malicious PDF — malware analysis report

Static analysis result for SHA-256 49c99470760eb1ed…

MALICIOUS

PDF

36.4 KB Created: 2021-05-14 16:15:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 0783f74d67f565c04fec863c90d5ba1d SHA-1: 7a97cf15adeeda99fa9ead32f10a18c4a313753e SHA-256: 49c99470760eb1edc6bf06c4abd80e85788614d4c6973ef15b38b520b0c63828
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 Apk Hack Download'. The document body and heuristics indicate a lure to a fake generator or hack, 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 0.0312

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/coin-master-apk-hack-download-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_off0000347b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x347B 24740 bytes
SHA-256: df0fbb1216a2fb1f6e3f21edb9e095ca2d6948735d02b42232bde520bebedc83
font_01_sfnt_off00006c41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C41 18472 bytes
SHA-256: 0e3831818f38ae56d02806b9c0b62f33b1ecd4ca65c3265caa2049c7f667b959

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