Malicious PDF — malware analysis report

Static analysis result for SHA-256 1120591f243233f6…

MALICIOUS

PDF

35.8 KB Created: 2021-05-11 21:10:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b9b3fcc16bc832645ec8b82aa44e5306 SHA-1: d0f7a8475d28b5122e9987a935b6a533a7bda015 SHA-256: 1120591f243233f60973ad4fd577595ab2ade4280a9673ee67c12d4c92c15261
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to known malicious infrastructure, specifically advertising a "free generator" or "game hack" for Coin Master. The document body text and heuristics confirm the presence of these lures and the redirection to a malicious URL. No scripts were extracted, but the primary attack vector appears to be social engineering via a malicious link within the document.

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

Related samples 4

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_off00003492.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3492 24908 bytes
SHA-256: c3640c1c107c5ea8467eb9928b5036eab18523c679031b0ce097bd04a43d61e3
font_01_sfnt_off00006b72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B72 18052 bytes
SHA-256: 5fb4108eeeaa79d5062a23cf640b88e54c695f2a54e3db1602082ad9a3ce4913

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