Malicious PDF — malware analysis report

Static analysis result for SHA-256 349b6f12f6d74236…

MALICIOUS

PDF

33.4 KB Created: 2021-07-05 15:53:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 9aad2a5eb2d1917b942bbe8c1296ef54 SHA-1: 1052b548872a291eb3beecd0d688f19c8b10777c SHA-256: 349b6f12f6d74236d6637453d997e89e7293424c11571258942778d72b29cc40
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by an ML classifier. 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 malicious score 0.9824

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/431946152/hack-any-roblox-account-using-a-program-game-hack PDF link annotation
    • http://library.thamrin.ac.id/repository/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • http://library.thamrin.ac.id/repository/get-robux-now_GM431946152.pdfIn PDF document text
    • http://library.thamrin.ac.id/repository/how-to-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://library.thamrin.ac.id/repository/how-do-you-earn-free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.thamrin.ac.id/repository/coin-master-free-spins-link-download-for-iphone_GM406889139.pdfIn PDF document text
    • http://library.thamrin.ac.id/repository/20210-robux_GM431946152.pdfIn PDF document text
    • http://library.thamrin.ac.id/repository/robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://library.thamrin.ac.id/repository/free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • http://library.thamrin.ac.id/repository/robloxheroxyz-free-robux_GM431946152.pdfIn PDF document text
    • http://library.thamrin.ac.id/repository/javascript-free-robux_GM431946152.pdfIn PDF document text
    • http://library.thamrin.ac.id/repository/coin-master-spin-hack_GM406889139.pdfIn PDF document text
    • http://library.thamrin.ac.id/repository/free-hair-roblox_GM431946152.pdfIn PDF document text
    • http://library.thamrin.ac.id/repository/coin-master-free-spin-and-coins-links_GM406889139.pdfIn PDF document text
    • http://library.thamrin.ac.id/repository/free-robux-earn_GM431946152.pdfIn PDF document text
    • http://library.thamrin.ac.id/repository/how-to-get-free-robux-by-playing-games_GM431946152.pdfIn PDF document text
    • http://library.thamrin.ac.id/repository/free-apk-mods-coin-master_GM406889139.pdfIn PDF document text
    • http://library.thamrin.ac.id/repository/coin-master-free-spins-facebook_GM406889139.pdfIn PDF document text
    • http://library.thamrin.ac.id/repository/minecraft-windows-10-hacks_GM479516143.pdfIn PDF document text
    • http://library.thamrin.ac.id/repository/how-to-hack-kohls-admin-on-roblox_GM431946152.pdfIn PDF document text
    • http://library.thamrin.ac.id/repository/cobalt-wings-free-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 5

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_off00002aff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2AFF 22104 bytes
SHA-256: 811b2efc30ae6253d57200fd8c33fb8795e6a302fb90352b5534b79d19b27e25
font_01_sfnt_off00005bfd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BFD 19616 bytes
SHA-256: b03d45feb8c265189db473bccdba9b2470b4f7570bf8c1b118ecd87feb4e3d43

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