Malicious PDF — malware analysis report

Static analysis result for SHA-256 00ba15eb2b9bfff0…

MALICIOUS

PDF

34.3 KB Created: 2021-06-20 07:55:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 367bd5730e4f5c2b417d886ceeff8f68 SHA-1: ca21c2b9646b682b7e2f2b4f9623d3d0db0677b6 SHA-256: 00ba15eb2b9bfff0e23f5da76d9c2472fbaa139ee60172fdda479aee14c0f605
102 Risk Score

Malware Insights

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

The PDF document contains numerous embedded URLs and a prominent external URI pointing to a download site, disguised with keywords related to "free Robux" and game hacking. The heuristic firings, particularly PDF_SEO_LINK_FARM and ML_NYX_PDF_MALICIOUS, strongly indicate malicious intent. The document body, though partially garbled, reinforces the theme of obtaining free Robux through a download link.

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/rocash-com-free-robux-game-hack PDF link annotation
    • https://library.elkatarie.ac.id/repository/i-will-hack-and-kill-you-parent-roblox-group_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/how-to-hack-on-roblox-into-accounts_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/free-roblox-code-generator-no-survey_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/roblox-how-to-cheat-on-obstacle-paradise_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/download-synapse-hack-roblox_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/button-complex-free-robux_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/how-to-get-free-robux-in-roblox-no-hacks-2021_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/free-robux-game-uncopylockedf_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/free-robux-kid-friendly-no-human-verification_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/robux-4all-cool-hack_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/roblox-robux-hack-2021-no-survey-no-download_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/bloxland-earn-free-robux_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/how-to-get-free-robux-in-roblox-2021-not-patched_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/roblox-cheat-robux-2021_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/free-robux-generator-no-verification_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/roblox-mad-city-hack-client_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/how-do-you-hack-roblox-and-get-player-ips_GM431946152.pdfIn PDF document text
    • https://library.elkatarie.ac.id/repository/roblox-studio-free-online_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F66 22276 bytes
SHA-256: 8b175e2d037514df742aa16f4e71a8e8a01a8ebb7dd472e860943fb644a2a5de
font_01_sfnt_off000060c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60C9 19144 bytes
SHA-256: 99690b9bce1e0bee9bfaa8f3ff8b4fbac8ddfe57a64505751127cf0f36fc3f10

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