Malicious PDF — malware analysis report

Static analysis result for SHA-256 84e5ada370108635…

MALICIOUS

PDF

35.2 KB Created: 2021-06-25 23:45:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 9053787781fe489649d150e86541e51a SHA-1: 1f069f4f86e98f572ce8e5729c3ebf46d6d51eec SHA-256: 84e5ada3701086358db284cd625fe66d382935e937a118052e77640bbbb02e8f
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external resources, including a direct link to 'netcdn.co', suggesting it is designed to redirect users to download potentially unwanted or malicious software. The document body and embedded URLs indicate a lure related to game hacks and cheats, a common social engineering tactic. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious intent.

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/fly-hack-for-roblox-2021-game-hack
    • https://perpustakaan.unitomo.ac.id/repository/coin-master-daily-free-spins-link_GM406889139.pdf
    • https://perpustakaan.unitomo.ac.id/repository/free-promo-codes-for-roblox-clote_GM431946152.pdf
    • https://perpustakaan.unitomo.ac.id/repository/free-robux-no-phone-number_GM431946152.pdf
    • https://perpustakaan.unitomo.ac.id/repository/free-robux-obby-meaning_GM431946152.pdf
    • https://perpustakaan.unitomo.ac.id/repository/how-to-hack-a-roblox_GM431946152.pdf
    • https://perpustakaan.unitomo.ac.id/repository/how-to-hack-roblox-accounts-2021_GM431946152.pdf
    • https://perpustakaan.unitomo.ac.id/repository/roblox-tokyo-ghoul-project-killzone-hack_GM431946152.pdf
    • https://perpustakaan.unitomo.ac.id/repository/coin-master-fan-page-free-spins_GM406889139.pdf
    • https://perpustakaan.unitomo.ac.id/repository/como-hackear-roblox-2021_GM431946152.pdf
    • https://perpustakaan.unitomo.ac.id/repository/hitbox-expand-hack-roblox_GM431946152.pdf
    • https://perpustakaan.unitomo.ac.id/repository/free-roblox-promo-codes-2021-august_GM431946152.pdf
    • https://perpustakaan.unitomo.ac.id/repository/noob-vs-pro-vs-hacker-vs-god-roblox-bloxburg_GM431946152.pdf
    • https://perpustakaan.unitomo.ac.id/repository/free-roblox-accounts-with-robux-that-work-not-banned_GM431946152.pdf
    • https://perpustakaan.unitomo.ac.id/repository/how-to-play-roblox-free-on-xbox-one_GM431946152.pdf
    • https://perpustakaan.unitomo.ac.id/repository/work-at-pizza-place-roblox-cheats_GM431946152.pdf
    • https://perpustakaan.unitomo.ac.id/repository/roblox-dance-hack_GM431946152.pdf
    • https://perpustakaan.unitomo.ac.id/repository/cute-shirts-that-are-free-roblox_GM431946152.pdf
    • https://perpustakaan.unitomo.ac.id/repository/roblox-greenwood-town-how-to-get-free-deathbringer_GM431946152.pdf
    • https://perpustakaan.unitomo.ac.id/repository/cheat-roblox-blox-piece_GM431946152.pdf
    • https://perpustakaan.unitomo.ac.id/repository/roblox-redeem-card-hack-2021_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000031d7.bin
d55006fbca328123b1678960bf2f4193bcf12c6c5d28eaffec736c7034db4216		 pdf-font-stream PDF embedded font (sfnt) at offset 0x31D7 22528 bytes
font_01_sfnt_off00006396.bin
ea45cbcffd3878e8c465e86be54701d4208f59ee7aab0066118e39fddaf6babf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6396 19400 bytes

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