Malicious PDF — malware analysis report

Static analysis result for SHA-256 029b59cc8b2a1f73…

MALICIOUS

PDF

34.9 KB Created: 2021-07-05 13:00:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: c922d2210930eadc1d1a90bf7e3903c7 SHA-1: c1e41ec9c8e7b30d7be70b51b35c451541da6b4b SHA-256: 029b59cc8b2a1f734f8996823b9d44c8e6fda6beb092797c54b5b174cbd7a197
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a high-severity heuristic indicating it links to a 'game hack' lure, specifically pointing to the URL http://netcdn.tw/app/406889139/free-spin-and-daily-news-coin-master-game-hack. This suggests a social engineering tactic to trick users into visiting a potentially malicious site. The document body also contains this URL, reinforcing the lure.

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/free-spin-and-daily-news-coin-master-game-hack PDF link annotation
    • http://digilib.unla.ac.id/repository/create-minecraft-server-free_GM479516143.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/get-free-robux-info_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/how-to-hack-minecraft_GM479516143.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-app-hacks_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/jailbreak-cheating-essentials-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/hack-roblox-players_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/minecraft-pocket-edition-free-download_GM479516143.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/paid-roblox-cheats_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/gamesofficenet-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-roblox-account-with-dominus_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/archivo-para-poner-a-roblox-para-hackear_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-robux-discord-servers_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/roblox-free-accessories_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-robux-sites-that-work_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-spin-hack-without-verification_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-hack-apk-download-for-android_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/saving-pikachu-roblox-cheat_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-hack-online-cheat_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/roblox-free-robux-com_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_off00003115.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3115 22604 bytes
SHA-256: 7026b53da42bcd7528ad942c40ac8504e77c4d170d82319a881113c7fcd0b70a
font_01_sfnt_off0000638e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x638E 18932 bytes
SHA-256: 36101d764955831f016478dbca268f518cf218c4ef5de7fe9a30f1aee0734da4

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