Malicious PDF — malware analysis report

Static analysis result for SHA-256 c1d6e61e55a9f201…

MALICIOUS

PDF

35.8 KB Created: 2021-06-27 12:37:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 936b7e9efaed8658ed8ff2a4e9fcff8a SHA-1: 0b8bc9614dc1386d28bf8d74b61317d8fb36d6f4 SHA-256: c1d6e61e55a9f20181463df236d5d59f95a49c7f640a435d225721ca37e0ea38
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to 'free limiteds on Roblox' and directs users to a URL that is likely part of a scam or phishing attempt. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs further supports this assessment. No scripts were extracted, but the document's content and heuristics indicate a social engineering tactic to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • 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-get-free-limiteds-on-roblox-game-hack PDF link annotation
    • http://www.eecpowerindia.com/codelibrary/ckeditor/ckfinder/userfiles/files/coin-master-hacks-2021_GM406889139.pdfIn PDF document text
    • http://www.eecpowerindia.com/codelibrary/ckeditor/ckfinder/userfiles/files/free-roblox-toy-codes-june-2021_GM431946152.pdfIn PDF document text
    • http://www.eecpowerindia.com/codelibrary/ckeditor/ckfinder/userfiles/files/roblox-build-a-boat-for-treasure-free-vip-server_GM431946152.pdfIn PDF document text
    • http://www.eecpowerindia.com/codelibrary/ckeditor/ckfinder/userfiles/files/free-roblox-face-girl-blushing_GM431946152.pdfIn PDF document text
    • http://www.eecpowerindia.com/codelibrary/ckeditor/ckfinder/userfiles/files/coin-master-villages_GM406889139.pdfIn PDF document text
    • http://www.eecpowerindia.com/codelibrary/ckeditor/ckfinder/userfiles/files/coinmasterfreespinlink_GM406889139.pdfIn PDF document text
    • http://www.eecpowerindia.com/codelibrary/ckeditor/ckfinder/userfiles/files/coinmaster-links_GM406889139.pdfIn PDF document text
    • http://www.eecpowerindia.com/codelibrary/ckeditor/ckfinder/userfiles/files/roblox-avatar-tester_GM431946152.pdfIn PDF document text
    • http://www.eecpowerindia.com/codelibrary/ckeditor/ckfinder/userfiles/files/zombie-attack-hack-roblox_GM431946152.pdfIn PDF document text
    • http://www.eecpowerindia.com/codelibrary/ckeditor/ckfinder/userfiles/files/huskybuckscom-free-robux_GM431946152.pdfIn PDF document text
    • http://www.eecpowerindia.com/codelibrary/ckeditor/ckfinder/userfiles/files/how-to-use-cheat-engine-on-roblox-mac_GM431946152.pdfIn PDF document text
    • http://www.eecpowerindia.com/codelibrary/ckeditor/ckfinder/userfiles/files/how-to-hack-mad-paintball-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.eecpowerindia.com/codelibrary/ckeditor/ckfinder/userfiles/files/how-to-hack-people-on-roblox-easy-exploit_GM431946152.pdfIn PDF document text
    • http://www.eecpowerindia.com/codelibrary/ckeditor/ckfinder/userfiles/files/robux-game_GM431946152.pdfIn PDF document text
    • http://www.eecpowerindia.com/codelibrary/ckeditor/ckfinder/userfiles/files/how-to-hack-a-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://www.eecpowerindia.com/codelibrary/ckeditor/ckfinder/userfiles/files/free-roblox-glasses_GM431946152.pdfIn PDF document text
    • http://www.eecpowerindia.com/codelibrary/ckeditor/ckfinder/userfiles/files/minecraft-windows-10-edition-unlock-full-game-free_GM479516143.pdfIn PDF document text
    • http://www.eecpowerindia.com/codelibrary/ckeditor/ckfinder/userfiles/files/robux-offer-wall_GM431946152.pdfIn PDF document text
    • http://www.eecpowerindia.com/codelibrary/ckeditor/ckfinder/userfiles/files/how-to-get-free-robux-for-no-money_GM431946152.pdfIn PDF document text
    • http://www.eecpowerindia.com/codelibrary/ckeditor/ckfinder/userfiles/files/coin-master-free-spins-link-2021-ios_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000031f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31F7 23028 bytes
SHA-256: 6466ace34fb6565874122bad66798465a01c7858cf781912f3e02085cbaccfbe
font_01_sfnt_off000065d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65D8 19472 bytes
SHA-256: 4643004dfe1db788a95391f2f1f7d87167d9323b83ade1f050e4a920ce3f013e

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