Malicious PDF — malware analysis report

Static analysis result for SHA-256 35dbb6190fba95fd…

MALICIOUS

PDF

34.8 KB Created: 2021-06-18 10:12:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: a9e3bf4263b5dcff2dee01dac0f80d61 SHA-1: a89044561c839eaf39e92d6256355c1954b1bd84 SHA-256: 35dbb6190fba95fd28f02d85533dfe99b68fd89552b340d265b5dc6dfd891b89
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains embedded links and text that lure users with promises of free game hacks and generators, specifically for Roblox and Coin Master. The primary link, http://netcdn.co/app/431946152/http-roblox-cheat-net-game-hack, is identified as a redirector to a malicious site. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest an attempt to direct users to a malicious download or phishing page, likely leveraging JavaScript for obfuscation or redirection.

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/http-roblox-cheat-net-game-hack PDF link annotation
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/apk-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/claimrbx-free-robux_GM431946152.pdfIn PDF document text
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/blox-pink-robux-free_GM431946152.pdfIn PDF document text
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/coin-master-free-spins-and-coins-haktuts_GM406889139.pdfIn PDF document text
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/village-4-coin-master_GM406889139.pdfIn PDF document text
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/roblox-free-no-download_GM431946152.pdfIn PDF document text
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/httpswwwurcouponsdealcom202103coinmasterfreespinandcoinlinkshtml_GM406889139.pdfIn PDF document text
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/minecraft-java-edition-free-code_GM479516143.pdfIn PDF document text
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/roblox-hack-me_GM431946152.pdfIn PDF document text
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/coin-master-free-spins-apple_GM406889139.pdfIn PDF document text
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/eyes-the-horror-game-update-2-alpha-hack-roblox_GM431946152.pdfIn PDF document text
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/how-to-get-free-robux-without-verification_GM431946152.pdfIn PDF document text
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/master-coin-hack-game_GM406889139.pdfIn PDF document text
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/coin-master-card-hack-2021_GM406889139.pdfIn PDF document text
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/free-spin-coin-master-game_GM406889139.pdfIn PDF document text
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/easy-robux-hack_GM431946152.pdfIn PDF document text
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/roblox-com-redeem_GM431946152.pdfIn PDF document text
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/sites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/free-robux-on-iphone_GM431946152.pdfIn PDF document text
    • https://baligaoritour.com/new/public/ckfinder/userfiles/files/free-robux-com_GM431946152.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_off00003172.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3172 22568 bytes
SHA-256: ca861e6edff2e7b9c16064a93f27fa58cbf9a8eb296eaaf45eecfb249738142a
font_01_sfnt_off000063ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63CE 18744 bytes
SHA-256: 665c20c202f998bcd8079c9b19cc69f02e1af36a9bd0fd9da75e2671890a6537