PDF static analysis report

Static analysis result for SHA-256 cb043d7a2cef5a80…

SUSPICIOUS

PDF

31.9 KB Created: 2021-07-19 06:33:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: cc9ab4df76dbcabb121a80ea3608188f SHA-1: 6c9f8efcdc37c44e0efc5c1c1b37cd09980ca9b0 SHA-256: cb043d7a2cef5a80d3d42dfec517f35fd93e63a9891b91538a383dcdfad240b2
52 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as suspicious. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier clean score 0.0622

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://netcdn.tw/app/835599320/free-tiktok-fans-no-human-verification-or-downloading-apps-game-hack PDF link annotation
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

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
font_00_sfnt_off0000270c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x270C 22312 bytes
SHA-256: f15738ad577b81b6360d126001d07311a8e81484cbdae15244cdd72b988b2eeb
font_01_sfnt_off0000586a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x586A 19260 bytes
SHA-256: c23abd5df90a5b7093cc3e198b5bcaea5ee7ff11a274e14c679da15d1a345c21

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