Malicious PDF — malware analysis report

Static analysis result for SHA-256 2531acf56ee2558b…

MALICIOUS

PDF

35.9 KB Created: 2021-06-30 20:09:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 9b8b1dcabd28ef5cf7ce46904d72f6fe SHA-1: e20360edc8d3fb9b0f56fbfee12d7efdcaf7c082 SHA-256: 2531acf56ee2558b783dace758d3f5c4cee26513c008612a2ac6c23a6485e6e1
102 Risk Score

Malware Insights

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

This PDF document is designed to trick users into downloading a malicious executor by impersonating Roblox-related cheats or hacks. It contains a large number of external links, many of which are SEO-optimized to appear legitimate, directing users to download sites like http://netcdn.co/app/431946152/download-hack-executor-roblox-game-hack. The presence of a download button lure further supports the 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/download-hack-executor-roblox-game-hack
    • https://perpus.poltekkesjkt2.ac.id/respoy/repository/roblox-speed-run-4-cheats_GM431946152.pdf
    • https://perpus.poltekkesjkt2.ac.id/respoy/repository/roblox-hack-apk-2021_GM431946152.pdf
    • https://perpus.poltekkesjkt2.ac.id/respoy/repository/free-roblox-accounts-2021-with-robux-generator_GM431946152.pdf
    • https://perpus.poltekkesjkt2.ac.id/respoy/repository/roblox-account-crcker-free-v3million_GM431946152.pdf
    • https://perpus.poltekkesjkt2.ac.id/setiadi/repository/free-spins-coin-master-blogspot_GM406889139.pdf
    • https://perpus.poltekkesjkt2.ac.id/setiadi/repository/roblox-hack-program-free-download_GM431946152.pdf
    • https://perpus.poltekkesjkt2.ac.id/setiadi/repository/como-se-hacker-en-roblox-2021_GM431946152.pdf
    • https://perpus.poltekkesjkt2.ac.id/respoy/repository/how-to-farm-money-in-boku-no-roblox-hack_GM431946152.pdf
    • https://perpus.poltekkesjkt2.ac.id/respoy/repository/free-roblox-accounts-with-bc_GM431946152.pdf
    • https://perpus.poltekkesjkt2.ac.id/respoy/repository/robloxcom-free-avatar_GM431946152.pdf
    • https://perpus.poltekkesjkt2.ac.id/setiadi/repository/how-to-get-free-robux-on-ipad-easy_GM431946152.pdf
    • https://perpus.poltekkesjkt2.ac.id/respoy/repository/how-to-get-robux-for-free-2021_GM431946152.pdf
    • https://perpus.poltekkesjkt2.ac.id/respoy/repository/how-to-get-robux-free-on-ipad_GM431946152.pdf
    • https://perpus.poltekkesjkt2.ac.id/setiadi/repository/free-roblox-accounts-with-bc-and-robux_GM431946152.pdf
    • https://perpus.poltekkesjkt2.ac.id/respoy/repository/velvet-twitter-feel-free-roblox_GM431946152.pdf
    • https://perpus.poltekkesjkt2.ac.id/respoy/repository/roblox-hacks-for-pc-2021-download-mods_GM431946152.pdf
    • https://perpus.poltekkesjkt2.ac.id/respoy/repository/roblox-lumber-tycoon-2-hailstone-hack_GM431946152.pdf
    • https://perpus.poltekkesjkt2.ac.id/respoy/repository/how-to-get-roblox-hats-for-free_GM431946152.pdf
    • https://perpus.poltekkesjkt2.ac.id/respoy/repository/http-cheatonlineeu-robloxrobuxhackforfreeproofs_GM431946152.pdf
    • https://perpus.poltekkesjkt2.ac.id/setiadi/repository/getbucks-me-roblox-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_off00003381.bin
e645ad79f740b7d7df09dc1a8996f51f67ff38d2061c270f91f4a6a7087593e7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3381 22676 bytes
font_01_sfnt_off0000661d.bin
9d90c604f044d511d17517da773442cf4f29dc7c24956ff1249f164a5f8b46c6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x661D 19404 bytes

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