Malicious PDF — malware analysis report

Static analysis result for SHA-256 0eeee5254bf441c1…

MALICIOUS

PDF

35.3 KB Created: 2021-06-19 13:00:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 691869148a50264c05e877f2b3fd19b0 SHA-1: 912c669ead4951897bdddc29e22471c28a1431df SHA-256: 0eeee5254bf441c16c4e0f00a51032a01b7a23b8f2a7f447b3ca70ca36e6ce70
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 SEO-optimized PDFs related to free game items and exploits. The document body and extracted URLs suggest a lure for users seeking free in-game currency or cheats, likely leading to malicious downloads or phishing sites. The ML classifier strongly indicated maliciousness, and the PDF structure itself is designed to host a large number of external links.

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/best-free-roblox-explits-game-hack
    • http://perpus.poltekeskupang.ac.id/repository/how-to-get-1-million-robux-for-free-2021_GM431946152.pdf
    • http://perpus.poltekeskupang.ac.id//repository/is-minecraft-vr-free_GM479516143.pdf
    • http://perpus.poltekeskupang.ac.id//repository/how-to-get-free-clothes-on-roblox-2021_GM431946152.pdf
    • http://perpus.poltekeskupang.ac.id//repository/free-robux-without-downloading-anything_GM431946152.pdf
    • http://perpus.poltekeskupang.ac.id//repository/free-tiktok-and-like_GM835599320.pdf
    • http://perpus.poltekeskupang.ac.id//repository/coin-master-free-cards-and-spin-link_GM406889139.pdf
    • http://perpus.poltekeskupang.ac.id/repository/how-to-get-a-free-robux-card_GM431946152.pdf
    • http://perpus.poltekeskupang.ac.id/repository/is-roblox-free-on-ps4_GM431946152.pdf
    • http://perpus.poltekeskupang.ac.id/repository/free-daily-spins-coin-master-2021_GM406889139.pdf
    • http://perpus.poltekeskupang.ac.id/repository/is-there-a-way-to-get-free-robux_GM431946152.pdf
    • http://perpus.poltekeskupang.ac.id//repository/coin-master-hack-apk-download_GM406889139.pdf
    • http://perpus.poltekeskupang.ac.id/repository/coin-master-hack-2021-app-download_GM406889139.pdf
    • http://perpus.poltekeskupang.ac.id/repository/coin-master-hack-2021-no-human-verification_GM406889139.pdf
    • http://perpus.poltekeskupang.ac.id/repository/inject-hack-com-roblox_GM431946152.pdf
    • http://perpus.poltekeskupang.ac.id/repository/cheat-roblox-csgo-november-2021_GM431946152.pdf
    • http://perpus.poltekeskupang.ac.id/repository/coin-master-hack-app-ios_GM406889139.pdf
    • http://perpus.poltekeskupang.ac.id//repository/what-do-roblox-points-do_GM431946152.pdf
    • http://perpus.poltekeskupang.ac.id/repository/free-robux-generator-no-verification_GM431946152.pdf
    • http://perpus.poltekeskupang.ac.id/repository/roblox-password-guessing-hack_GM431946152.pdf
    • http://perpus.poltekeskupang.ac.id//repository/roblox-army-free-robux_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000321d.bin
22d05c68a450e978f8859b4785a8cd15034f88ee89b6383525b3bceb22e4006e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x321D 22816 bytes
font_01_sfnt_off0000651b.bin
21e79d8cf0de15564d2c5a5782afa230608f9f3e4e9ab23dd1df2c7512304906		 pdf-font-stream PDF embedded font (sfnt) at offset 0x651B 19048 bytes

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