Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e0aeff4d5025032…

MALICIOUS

PDF

33.6 KB Created: 2021-07-05 08:25:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 524cff6271b4c0d5004c989c4578b870 SHA-1: 9d563ab9e796b36ddbe14ec803bd3741f265e352 SHA-256: 4e0aeff4d502503220440bfc6c2ad97d8ae499fc13f573e472d0696e057eb4df
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a prominent link to 'http://netcdn.tw/app/431946152/free-roblox-clothes-girl-game-hack', which is flagged as a lure for game hacks and redirects. This suggests the document is designed to trick users into visiting a potentially malicious site for fake cheats or generators. No scripts were extracted, but the embedded URL is the primary indicator of malicious intent.

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-roblox-clothes-girl-game-hack PDF link annotation
    • https://domc.tw/upload/files/minecraft-games-free-to-play-online_GM479516143.pdfIn PDF document text
    • https://domc.tw/upload/files/free-minecraft-videos_GM479516143.pdfIn PDF document text
    • https://domc.tw/upload/files/follower-fr-tiktok-free_GM835599320.pdfIn PDF document text
    • https://domc.tw/upload/files/moonactive-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://domc.tw/upload/files/free-spin-link_GM406889139.pdfIn PDF document text
    • https://domc.tw/upload/files/how-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://domc.tw/upload/files/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://domc.tw/upload/files/free-coin-and-spin-for-coin-master_GM406889139.pdfIn PDF document text
    • https://domc.tw/upload/files/free-roblox-names-and-passwords_GM431946152.pdfIn PDF document text
    • https://domc.tw/upload/files/invisibility-hacks-roblox_GM431946152.pdfIn PDF document text
    • https://domc.tw/upload/files/how-to-get-free-roblox-cards-no-surveys_GM431946152.pdfIn PDF document text
    • https://domc.tw/upload/files/how-to-get-free-robux-easy-no-download_GM431946152.pdfIn PDF document text
    • https://domc.tw/upload/files/get-minecraft-windows-10-free_GM479516143.pdfIn PDF document text
    • https://domc.tw/upload/files/free-roblox-hack_GM431946152.pdfIn PDF document text
    • https://domc.tw/upload/files/how-do-u-get-free-robux_GM431946152.pdfIn PDF document text
    • https://domc.tw/upload/files/how-to-hack-badges-roblox_GM431946152.pdfIn PDF document text
    • https://domc.tw/upload/files/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://domc.tw/upload/files/get-robux-free-without-signing-up_GM431946152.pdfIn PDF document text
    • https://domc.tw/upload/files/free-robux-email-verification_GM431946152.pdfIn PDF document text
    • https://domc.tw/upload/files/free-spins-on-coin-master-game_GM406889139.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_off00002e66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E66 21704 bytes
SHA-256: a2385c9a2a80f1ae70694868da513827a453425ec5c5b506b006821a2f338770
font_01_sfnt_off00005e28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E28 19040 bytes
SHA-256: 3cfa683e3a3f637295c6b7d990fcd00cc6f0dc6bb8e195ef764d5aa5452b5aa9

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