Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ff3ce91814eb953…

MALICIOUS

PDF

27.5 KB Created: 2021-07-05 18:16:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 30af508037af00e323f4cd3d95ae5d08 SHA-1: 0bbc067337bf9e7adc0d0b1a4d43c8fa8ceaa2b2 SHA-256: 8ff3ce91814eb9536577f86f736b70fb3c14956cc88096e7891086398c83b306
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous links to external websites, many of which are SEO-optimized and related to game hacks and cheats for popular games like Roblox and Coin Master. The document body explicitly mentions 'Roblox Hack Me Robux' and 'CLICK HERE TO ACCESS ROBUX GENERATOR', indicating a phishing or scam attempt designed to lure users to malicious sites. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

Heuristics 3

  • 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.
  • 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.tw/app/431946152/roblox-hack-me-robux-game-hack PDF link annotation
    • http://opac.stiesa.ac.id/repository/moonactive-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/free-robux-roblox-promo-codes_GM431946152.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/download-hacked-games-com-coin-master_GM406889139.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/free-minecraft-capes_GM479516143.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/how-to-hack-someone-on-roblox-on-ipad_GM431946152.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/how-do-you-install-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/rewards-roblox-com_GM431946152.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/spin-link-coin-master_GM406889139.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/free-spin-coin-master-hacktoman_GM406889139.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/blox-pice-roblox-hack_GM431946152.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/coin-master-hack-pro-gamers_GM406889139.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/best-free-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/how-to-hack-a-roblox-server-2021_GM431946152.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/roblox-play-now-for-free-unblocked_GM431946152.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/coin-master-hack-spins-android_GM406889139.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/free-robux-no-verification-2021-android_GM431946152.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/how-do-you-get-roblox-money_GM431946152.pdfIn PDF document text
    • http://opac.stiesa.ac.id/repository/ass-hurt-free-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002efa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EFA 23044 bytes
SHA-256: fb2c2adf9597c236153a1fbe2adaa0569174c5ac0ef2c3246be3fc6578db5d41

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