Malicious PDF — malware analysis report

Static analysis result for SHA-256 76ccd21572351849…

MALICIOUS

PDF

39.2 KB Created: 2021-05-10 12:00:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3e1c05b3e879f26db13b53af94419589 SHA-1: 7e3f6b5602d195a38d3c7f8e82aba923a8c9ca49 SHA-256: 76ccd215723518495d7b64e51b594b3fce6345872b2bcd807f4782e1de056570
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a malicious link disguised as a 'free generator / game hack' which redirects to a known malicious infrastructure. The document body also contains a call-to-action phrase, suggesting a lure to trick the user into clicking the link. No scripts were extracted, but the presence of malicious links and the lure indicate a phishing attempt to deliver a payload.

Machine Learning

  • Nyx PDF Classifier clean score 0.0127

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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00002f43.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2F43 27456 bytes
SHA-256: 4b62a5402f5311168a2a292e0896414e4e9657f35e17685f68e8eac90edd45fb
font_01_sfnt_off00006d76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D76 2912 bytes
SHA-256: 6e07e6753a1b7f3946429eb05e6ec352f38d71971554550c1c0ea562d62df99c
font_02_sfnt_off00007784.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7784 18284 bytes
SHA-256: 15cbb039240871f663533138b429172a54e714a7a81015087603783b9c5e24ba

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