Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0abe275ea5a1e7e…

MALICIOUS

PDF

35.2 KB Created: 2021-06-27 00:01:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: dad80efce420f4917cdd423e10000c73 SHA-1: 782ce086d0d81916a6743fc56efc07331f8d9295 SHA-256: d0abe275ea5a1e7ed5baac8f8d5339be4eaecea7e23206905d3e8c371fd515c9
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous external links, many of which are presented as guides for obtaining game hacks and free in-game currency. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of these external links, suggesting a link farm designed to attract users searching for cheats or exploits. The ML classifier also flagged this PDF as malicious with high confidence. 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/how-to-download-roblox-hack-tool-game-hack
    • https://lms.mtsn3trenggalek.sch.id/__statics/gudangsoal/files/roblox-why-is-nothing-free_GM431946152.pdf
    • https://lms.mtsn3trenggalek.sch.id/__statics/gudangsoal/files/coin-master-free-coins-link_GM406889139.pdf
    • https://lms.mtsn3trenggalek.sch.id/__statics/gudangsoal/files/free-tiktok-followers-no-verification-or-survey_GM835599320.pdf
    • https://lms.mtsn3trenggalek.sch.id/__statics/gudangsoal/files/100-free-spins-coin-master_GM406889139.pdf
    • https://lms.mtsn3trenggalek.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-verification_GM431946152.pdf
    • https://lms.mtsn3trenggalek.sch.id/__statics/gudangsoal/files/roblox-strucid-aimbot-hack-download_GM431946152.pdf
    • https://lms.mtsn3trenggalek.sch.id/__statics/gudangsoal/files/free-robux-codes-2021-without-human-verification_GM431946152.pdf
    • https://lms.mtsn3trenggalek.sch.id/__statics/gudangsoal/files/roblox-robux-hack-no-human-verification-or-survey-2021_GM431946152.pdf
    • https://lms.mtsn3trenggalek.sch.id/__statics/gudangsoal/files/hack-forums-for-roblox_GM431946152.pdf
    • https://lms.mtsn3trenggalek.sch.id/__statics/gudangsoal/files/roblox-hack-gui-2021_GM431946152.pdf
    • https://lms.mtsn3trenggalek.sch.id/__statics/gudangsoal/files/roblox-pet-simulator-how-to-get-hacked-pets_GM431946152.pdf
    • https://lms.mtsn3trenggalek.sch.id/__statics/gudangsoal/files/fiverr-roblox-hacks_GM431946152.pdf
    • https://lms.mtsn3trenggalek.sch.id/__statics/gudangsoal/files/games-that-will-give-you-free-robux_GM431946152.pdf
    • https://lms.mtsn3trenggalek.sch.id/__statics/gudangsoal/files/free-coins-and-spins-coin-master_GM406889139.pdf
    • https://lms.mtsn3trenggalek.sch.id/__statics/gudangsoal/files/get-free-robux-com_GM431946152.pdf
    • https://lms.mtsn3trenggalek.sch.id/__statics/gudangsoal/files/descargar-roblox-para-pc-hackeado_GM431946152.pdf
    • https://lms.mtsn3trenggalek.sch.id/__statics/gudangsoal/files/what-is-the-best-free-roblox-exploit_GM431946152.pdf
    • https://lms.mtsn3trenggalek.sch.id/__statics/gudangsoal/files/how-to-hack-somebody-on-roblox-2021_GM431946152.pdf
    • https://lms.mtsn3trenggalek.sch.id/__statics/gudangsoal/files/rblx-city-free-robux_GM431946152.pdf
    • https://lms.mtsn3trenggalek.sch.id/__statics/gudangsoal/files/funbloxxyz-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_off00003232.bin
d13d17ab7ca56ddb0305ebcd2b8a9063cf847e91b522541476b27b0ac70190fa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3232 22436 bytes
font_01_sfnt_off000063ff.bin
384d87f037e77f05e7ac1d10ea339881d67d687ad333a99ca3db306ab3a8ab18		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63FF 19160 bytes

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