Malicious PDF — malware analysis report

Static analysis result for SHA-256 ced87d6f7fd0dfdb…

MALICIOUS

PDF

34.7 KB Created: 2021-06-27 01:54:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 023d7c8e07336a45f62260f95f96c7f3 SHA-1: 26b1248164d706f5ed50e0580afb0f5194293d1d SHA-256: ced87d6f7fd0dfdba93113a5b1db6b865dedaa713d3146b293386ae710698e5f
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document contains a large number of embedded links, many of which are presented as download opportunities for game-related cheats and hacks. The primary URL, http://netcdn.co/app/431946152/roblox-admin-commands-script-hack-game-hack, and the numerous links hosted on digilib.stie-yppi.ac.id suggest a lure to download potentially unwanted or malicious software. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious download lure.

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/roblox-admin-commands-script-hack-game-hack
    • http://digilib.stie-yppi.ac.id/repository/free-robux-generator-no-survey_GM431946152.pdf
    • http://digilib.stie-yppi.ac.id/repository/robux-online_GM431946152.pdf
    • http://digilib.stie-yppi.ac.id/repository/minecraft-java-edition-for-free_GM479516143.pdf
    • http://digilib.stie-yppi.ac.id/repository/minecraft-pe-hacked-client-download_GM479516143.pdf
    • http://digilib.stie-yppi.ac.id/repository/free-robux-wheel_GM431946152.pdf
    • http://digilib.stie-yppi.ac.id/repository/free-robux-just-click_GM431946152.pdf
    • http://digilib.stie-yppi.ac.id/repository/free-free-robux_GM431946152.pdf
    • http://digilib.stie-yppi.ac.id/repository/how-to-hack-roblox-accounts-2021-on-pc_GM431946152.pdf
    • http://digilib.stie-yppi.ac.id/repository/minecraft-free-download-android-apk-014-0_GM479516143.pdf
    • http://digilib.stie-yppi.ac.id/repository/how-to-hack-strucid-roblox_GM431946152.pdf
    • http://digilib.stie-yppi.ac.id/repository/haktuts-coin-master-free-spin-link-today_GM406889139.pdf
    • http://digilib.stie-yppi.ac.id/repository/anti-ban-and-kick-cheat-roblox-2021_GM431946152.pdf
    • http://digilib.stie-yppi.ac.id/repository/free-robux-no-verification-at-all_GM431946152.pdf
    • http://digilib.stie-yppi.ac.id/repository/how-to-hack-coin-master-with-game-guardian_GM406889139.pdf
    • http://digilib.stie-yppi.ac.id/repository/free-robux-no-human-verification-no-survey_GM431946152.pdf
    • http://digilib.stie-yppi.ac.id/repository/play-roblox-free-online_GM431946152.pdf
    • http://digilib.stie-yppi.ac.id/repository/100-free-spins-for-coin-master_GM406889139.pdf
    • http://digilib.stie-yppi.ac.id/repository/player-esp-hack-roblox_GM431946152.pdf
    • http://digilib.stie-yppi.ac.id/repository/how-to-get-2021-robux-for-free_GM431946152.pdf
    • http://digilib.stie-yppi.ac.id/repository/how-to-get-free-shields-on-coin-master_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003079.bin
49dc92cb561d26e896ca60e9967f650619b1856bc54300f53ef8bd1e1e281a4a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3079 22000 bytes
font_01_sfnt_off00006108.bin
69e38a905e3bf06939ea3115d55674d481100589e9c5d7e053facbe8ccfef0d6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6108 19488 bytes

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