Malicious PDF — malware analysis report

Static analysis result for SHA-256 780fa507e7947458…

MALICIOUS

PDF

33.0 KB Created: 2021-07-05 01:46:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 956610b279add30d3759abc3cc9c2d43 SHA-1: ceec4b94c53072653ac8dcd21b0f2c5b12391be0 SHA-256: 780fa507e79474582668f7b6d3dc3c8c9e662d6a6d655f2ac41354e60793b03c
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one to 'netcdn.tw', which is flagged as a game hack redirector. The document body and heuristics indicate a lure for game-related cheats or rewards, likely to lead the user to a malicious website. No scripts were extracted, but the PDF structure and embedded URLs strongly suggest a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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/406889139/coin-master-reward-link-game-hack PDF link annotation
    • http://www.pustaka.pn-calang.go.id/repository/free-spins-on-coin-master-link_GM406889139.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/roblox-unpacking-simulator-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/how-to-make-a-free-t-shirt-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/roblox-get-free-gear_GM431946152.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/free-tiktok-followers-no-survey_GM835599320.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/coin-master-free-spins-link-facebook_GM406889139.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/coin-master-golden-cards-hack_GM406889139.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/minecraft-hacks-18-9_GM479516143.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/how-to-get-free-gear-in-roblox-high-school_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/free-coins_GM406889139.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/coin-master-spins-hack_GM406889139.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/coin-master-spin-pattern_GM406889139.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/minecraft-marketplace-free_GM479516143.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/minecraft-life-hacks_GM479516143.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/how-to-get-20210-robux-for-free_GM431946152.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/cara-cheat-roblox-mining-simulator_GM431946152.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/minecraft-bedrock-free-with-java_GM479516143.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/roblox-hack-unlimited-health_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/robux-in-1min-hacken-german_GM431946152.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/get-free-robux-website_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002dd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DD7 21812 bytes
SHA-256: 871b05c63394904fef384f09dd533ef22a4cf8811484b71a6589872cecbe9d7e
font_01_sfnt_off00005dce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DCE 18340 bytes
SHA-256: c1246ab1d9e393b3d89bf1ae428e5235d00f0bb5ef049749243bc3f4df939c9c

Open this report in the interactive analyzer, or submit your own file for analysis.