Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ad902d6482900b1…

MALICIOUS

PDF

35.3 KB Created: 2021-07-03 13:11:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 692237376b7b541df906db3a4dd71ccf SHA-1: 05f48025cc89583b5c5612aa0b46982229017cd6 SHA-256: 6ad902d6482900b19af57c99ba9f8f87f1811644ee98738c71ddb02bb7d39252
102 Risk Score

Malware Insights

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

This PDF document exhibits characteristics of a link farm or SEO manipulation scheme, with a high ML confidence score for maliciousness. It contains numerous external links to websites offering game hacks and cheats, likely intended to drive traffic or host further malicious content. The document body, though partially corrupted, contains references to these lures and embedded URLs.

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.tw/app/406889139/free-spins-coin-master-2021-app-game-hack
    • http://sttlets.education/senayan/repository/free-coins-coin-master-haktuts_GM406889139.pdf
    • http://sttlets.education/senayan//repository/coin-master-app-hacks_GM406889139.pdf
    • http://sttlets.education/senayan/repository/roblox-hack-atravesar-paredes-actualizado-2021-funcionando_GM431946152.pdf
    • http://sttlets.education/senayan/repository/cheat-enginge-how-to-make-roblox-not-crash_GM431946152.pdf
    • http://sttlets.education/senayan/repository/free-robux-no-downloading-apps_GM431946152.pdf
    • http://sttlets.education/senayan/repository/free-coins-and-spins-for-coin-master_GM406889139.pdf
    • http://sttlets.education/senayan//repository/how-to-get-free-robux-easy-hack_GM431946152.pdf
    • http://sttlets.education/senayan/repository/coin-master-free-coins-and-spins-online-tool_GM406889139.pdf
    • http://sttlets.education/senayan//repository/can-i-hack-coin-master-with-lucky-patcher_GM406889139.pdf
    • http://sttlets.education/senayan//repository/how-to-get-minecraft-for-free-on-chromebook_GM479516143.pdf
    • http://sttlets.education/senayan/repository/qa-roblox-hacks-azhdh-f-b_GM431946152.pdf
    • http://sttlets.education/senayan/repository/how-to-hack-in-roblox-jailbreak_GM431946152.pdf
    • http://sttlets.education/senayan/repository/coin-master-free-spins-no-survey_GM406889139.pdf
    • http://sttlets.education/senayan//repository/coin-master-apk-mod-hack-download_GM406889139.pdf
    • http://sttlets.education/senayan/repository/free-obc-roblox_GM431946152.pdf
    • http://sttlets.education/senayan/repository/roblox-hack-download-explode_GM431946152.pdf
    • http://sttlets.education/senayan//repository/robux-free-gift-card-org-hack_GM431946152.pdf
    • http://sttlets.education/senayan/repository/bux-city-earn-free-robux_GM431946152.pdf
    • http://sttlets.education/senayan/repository/free-roblox-shirt-templates_GM431946152.pdf
    • http://sttlets.education/senayan/repository/roblox-promo-code-hack-2021_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off0000330b.bin
85e7ebc329279f8445e6c5d1762977683739dd668b7c4590bc17045fa27fed73
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x330B 22840 bytes
font_01_sfnt_off0000668e.bin
15a675c2e57ed79e3df4794bcfdf733c83ffccf7533f1288849b01a630512951
pdf-font-stream PDF embedded font (sfnt) at offset 0x668E 18576 bytes