Malicious PDF — malware analysis report

Static analysis result for SHA-256 4598008c6d56170a…

MALICIOUS

PDF

34.9 KB Created: 2021-07-03 12:00:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 4a03b475bd60cd3355cecec2920aa91c SHA-1: 624e342fca967b3f41ce6f7499a6e782c98e422a SHA-256: 4598008c6d56170afe49505a70cd58074a6a61117ec4dfbd1d71b9863f9c5abb
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and text referencing 'Free Robux Generator' and 'game hack' lures, directing users to potentially malicious websites. The ML classifier strongly flagged this PDF as malicious, and the presence of embedded URLs further supports a phishing or scam attempt. No scripts were extracted, but the document's content and embedded links indicate a social engineering tactic to drive traffic to a malicious domain.

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/431946152/free-robux-generator-no-human-verification-game-hack PDF link annotation
    • https://lib.bunghatta.ac.id/app/repository/hack-roblox-games-app_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/what-games-on-roblox-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/roblox-hack-robuxian-secret-forum-hack_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/free-robux-hack-fr_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/robux-free-online_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/how-to-find-roblox-in-cheat-engine_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/how-to-get-free-robux-apk_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/coin-master-hack-tool-without-human-verification_GM406889139.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/how-to-hack-games-roblox_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/roblox-demo-free-download_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/dis666-roblox-hack_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/free-things-on-roblox-catalog_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/flame-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/how-to-hack-money-on-any-roblox-game_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/roblox-gift-card-codes-free-2021_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/how-to-get-free-roblox-clothing-no-hacks_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/hacking-roblox-assain_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/roblox-phantom-forces-money-hack-2021_GM431946152.pdfIn PDF document text
    • https://lib.bunghatta.ac.id/app/repository/roblox-password-hacker-generator_GM431946152.pdfIn PDF document text
    • 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_off000030a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30A6 22436 bytes
SHA-256: 569843535182fea10e77192205c7a98e81812a4667c05ff769e2b9ef89b263fc
font_01_sfnt_off0000629a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x629A 19336 bytes
SHA-256: 1e7a5ee1c2d4ea33325644fd63b1f7e257f54daacec13fb4b037f0c912b7aa4c

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