Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3c68ac0d5542219…

MALICIOUS

PDF

36.1 KB Created: 2021-06-28 16:55:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: db272ba1d44ad9cda60d47203cd89107 SHA-1: 2cc00f899c8dd97e09b30e4d3aea9ff3f98f70a5 SHA-256: e3c68ac0d554221924c8d9e7338d5fe97f08cc7f5e17cc0479d8bc85f77ca74b
102 Risk Score

Malware Insights

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

The PDF document contains numerous embedded URLs that lead to websites offering game hacks and free in-game currency, indicating a lure for potentially unwanted or malicious software downloads. The ML classifier and PDF_SEO_LINK_FARM heuristic strongly suggest malicious intent behind the creation of this document. The presence of a 'download button' lure further supports this assessment.

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/479516143/how-to-get-minecraft-windows-10-edition-for-free-game-hack
    • http://elearning.mtsn8madiun.sch.id/__statics/gudangsoal/files/roblox-download-free-games_GM431946152.pdf
    • http://elearning.mtsn8madiun.sch.id/__statics/gudangsoal/files/how-to-hack-coin-master-game-without-root_GM406889139.pdf
    • http://elearning.mtsn8madiun.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins-link-today-blog_GM406889139.pdf
    • http://elearning.mtsn8madiun.sch.id/__statics/gudangsoal/files/monttechscom-coin-master-free-spins_GM406889139.pdf
    • http://elearning.mtsn8madiun.sch.id/__statics/gudangsoal/files/hacks-for-robloxian-highschool-roblox_GM431946152.pdf
    • http://elearning.mtsn8madiun.sch.id/__statics/gudangsoal/files/coin-master-free-spin-link-daily_GM406889139.pdf
    • http://elearning.mtsn8madiun.sch.id/__statics/gudangsoal/files/free-robux-generator-no-human-verification_GM431946152.pdf
    • http://elearning.mtsn8madiun.sch.id/__statics/gudangsoal/files/free-coin-master-spins-for-today_GM406889139.pdf
    • http://elearning.mtsn8madiun.sch.id/__statics/gudangsoal/files/free-legit-way-to-get-robux_GM431946152.pdf
    • http://elearning.mtsn8madiun.sch.id/__statics/gudangsoal/files/hack-download_GM431946152.pdf
    • http://elearning.mtsn8madiun.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-to-get-robux_GM431946152.pdf
    • http://elearning.mtsn8madiun.sch.id/__statics/gudangsoal/files/free-robux-codes-no-verification_GM431946152.pdf
    • http://elearning.mtsn8madiun.sch.id/__statics/gudangsoal/files/how-to-download-synapse-roblox-hack_GM431946152.pdf
    • http://elearning.mtsn8madiun.sch.id/__statics/gudangsoal/files/free-roblox-characters_GM431946152.pdf
    • http://elearning.mtsn8madiun.sch.id/__statics/gudangsoal/files/free-minecraft-account_GM479516143.pdf
    • http://elearning.mtsn8madiun.sch.id/__statics/gudangsoal/files/free-robux-hacks-no-verification_GM431946152.pdf
    • http://elearning.mtsn8madiun.sch.id/__statics/gudangsoal/files/minecraft-realms-free-codes_GM479516143.pdf
    • http://elearning.mtsn8madiun.sch.id/__statics/gudangsoal/files/omplete-surveys-for-coin-master-free-spins_GM406889139.pdf
    • http://elearning.mtsn8madiun.sch.id/__statics/gudangsoal/files/future-hack-roblox_GM431946152.pdf
    • http://elearning.mtsn8madiun.sch.id/__statics/gudangsoal/files/get-me-robux-for-free_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003695.bin
9847e1bb9771708ce11ac35fb97255365ef9f4b28a461469f71bd5b9e6f9c97f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3695 22500 bytes
font_01_sfnt_off000068c1.bin
f716e881059f29ffa9bbe1d090f6d126727f740b51ca9620c60dab13ccdfe3d8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x68C1 18812 bytes

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