Malicious PDF — malware analysis report

Static analysis result for SHA-256 f67a2afd8e4967db…

MALICIOUS

PDF

35.6 KB Created: 2021-06-19 13:43:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 9f45b8ec95f69ce07af0cf8e9e4aa181 SHA-1: 7294e03a0d09cc0f0c7661ad4d6c368da8d52398 SHA-256: f67a2afd8e4967dbad7b2e68ed04faebc4fc0cf4b89e4b990321fff22223a210
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains a large number of external links, many of which are structured as SEO-optimized PDF gateways. The document body and extracted URLs suggest a lure for game-related hacks, likely leading to malware downloads. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed to trick users into downloading potentially harmful content.

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/roblox-how-to-hack-robux-with-cheat-engine-6.4-game-hack PDF link annotation
    • http://parsbaft.com/images/roblox-free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/robuxlove-net-free-robux_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/how-to-hack-in-roblox-prison-life_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/hack-roblox-atravesar-paredes-2021_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/hack-coin-master-for-iphone_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/how-to-get-400-robux-on-roblox-for-free-2021_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/free-robux-no-verification-no-download-2021_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/hacks-para-tener-robux-gratis_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/free-robux-no-human-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/roblox-fun-com-free-robux_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/roblox-accounts-free-2021_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/coin-master-hacks-2021_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/free-coin-master-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/roblox-hack-unlimited-robux-apk-download_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/is-roblox-free-on-three_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/coin-master-spin-free_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/tiktok-free-views_GM835599320.pdfIn PDF document text
    • http://parsbaft.com/images/roblox-how-to-get-free-robux-without-hacks_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/instagram-free-coin-master-spins_GM406889139.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_off00003176.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3176 22436 bytes
SHA-256: b019982951063dd7b5e6f40066b3b1d256fc92a71c8ff7620e01ac55bac83482
font_01_sfnt_off000063ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63AB 19844 bytes
SHA-256: d0b75d7871b1f5f967251b9daeb33b7c2e7856420daf416ca85bae0f68ac44ad

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