Malicious PDF — malware analysis report

Static analysis result for SHA-256 74fb6ce89c9ecd3d…

MALICIOUS

PDF

34.4 KB Created: 2021-06-25 03:20:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: c1cdf2f31f4a79520fa47486190e7e1c SHA-1: 54e21ecea9a5dbfb081e2fa11baf2932dfda45e9 SHA-256: 74fb6ce89c9ecd3deb37595136bed2c5d116bef442f8aaa047b8fb3142aee89c
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external websites, many of which are structured as SEO-optimized PDF links, suggesting a link farm. The primary URL and many others point to resources promising game hacks and cheats, such as 'Robux Hack Tool No Survey'. This indicates a likely attempt to lure users to download or access potentially malicious content disguised as game cheats.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.co/app/431946152/robux-hack-tool-no-survey-game-hack PDF link annotation
    • https://library.uigm.ac.id/repository/safe-hack-for-coin-master-android_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/descargar-asshurt-v32-hack-para-roblox-torrent_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/hacking-roblox-accounts-real-way-2021-v3rmillion_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/lazy-blocks-com-free-robux_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/join-builders-club-roblox-free_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/free-coin_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/how-to-get-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/roblox-fun-com-free-robux_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/how-to-hack-any-roblox-account_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/roblox-skins-boy-free_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/hacks-robux-gratis_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/get-free-robux-info_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/apps-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/roblox-hacks-and-cheats-and-keygen_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/robux-hack-no-download-or-human-verification_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/coin-master-hacks-xyz_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/hack-robux-no-inspect_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/is-hacking-illegal-in-roblox_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/coin-master-official-fan-page_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_off00002ebe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EBE 22756 bytes
SHA-256: 8ed1653627b2eb67f85b54eb4978c2f8bd79e509d1bd2fd351d834a6e34a15ee
font_01_sfnt_off0000612c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x612C 19088 bytes
SHA-256: a2076bc899035d55bb0ab50a2e538a178bae4bce2c6ac79b2829d0f4d6551085

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