Malicious PDF — malware analysis report

Static analysis result for SHA-256 6296ad65e16b105a…

MALICIOUS

PDF

34.3 KB Created: 2021-06-18 00:55:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 5284d7570ecacb9a95b67ccab090df9c SHA-1: a7b0990ac9d40b6c6a12df6b4a355a644958f864 SHA-256: 6296ad65e16b105a9abad908c82f7130c6401ff77047c13026ac28eefbea260c
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded links, identified as a "link farm", that lead to external resources related to game cheats and hacks. The primary URL, http://netcdn.co/app/431946152/how-to-get-new-items-in-roblox-for-free-game-hack, suggests a lure for users seeking in-game advantages. The ML classifier strongly flagged this PDF as malicious, indicating a high probability of malicious intent behind the document's content and structure.

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/how-to-get-new-items-in-roblox-for-free-game-hack
    • http://perpus.poltekeskupang.ac.id/repository/free-minecraft-addons_GM479516143.pdf
    • http://perpus.poltekeskupang.ac.id/repository/coin-master-free-coin-hack_GM406889139.pdf
    • http://perpus.poltekeskupang.ac.id//repository/free-robux-that-actually-works-2021_GM431946152.pdf
    • http://perpus.poltekeskupang.ac.id/repository/how-to-hack-seven-hour-war-rp-roblox_GM431946152.pdf
    • http://perpus.poltekeskupang.ac.id/repository/free-spin-in-coin-master_GM406889139.pdf
    • http://perpus.poltekeskupang.ac.id//repository/get-me-robux-for-free_GM431946152.pdf
    • http://perpus.poltekeskupang.ac.id/repository/hack-coin-master-link_GM406889139.pdf
    • http://perpus.poltekeskupang.ac.id/repository/coin-master-free-spins-iphone_GM406889139.pdf
    • http://perpus.poltekeskupang.ac.id//repository/coin-master-support_GM406889139.pdf
    • http://perpus.poltekeskupang.ac.id/repository/oprewards-com-earn_GM431946152.pdf
    • http://perpus.poltekeskupang.ac.id//repository/free-coins-coin-master-iphone_GM406889139.pdf
    • http://perpus.poltekeskupang.ac.id/repository/best-free-minecraft-hacked-client_GM479516143.pdf
    • http://perpus.poltekeskupang.ac.id/repository/roblox-com-www_GM431946152.pdf
    • http://perpus.poltekeskupang.ac.id/repository/roblox-r2d-money-hack-cheat-engine_GM431946152.pdf
    • http://perpus.poltekeskupang.ac.id/repository/coin-master-attack-block-hack_GM406889139.pdf
    • http://perpus.poltekeskupang.ac.id/repository/hack-coin-master-apk-32-download_GM406889139.pdf
    • http://perpus.poltekeskupang.ac.id/repository/tiktok-download-free-jio-phone_GM835599320.pdf
    • http://perpus.poltekeskupang.ac.id//repository/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdf
    • http://perpus.poltekeskupang.ac.id//repository/lucky-patcher-coin-master-hack_GM406889139.pdf
    • http://perpus.poltekeskupang.ac.id/repository/coin-master-35-2-hack_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ee2.bin
e469d7c68b7d4c67c174beab6aa39a5f888833d36f2c32bec1e24b3a091cf19f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2EE2 22440 bytes
font_01_sfnt_off000060ae.bin
a366b9fbea87ad3c727b2887b55e3621442719072404945e0d9a296beb5eb4e5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60AE 19176 bytes

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