Malicious PDF — malware analysis report

Static analysis result for SHA-256 521aa5f5c1e931cd…

MALICIOUS

PDF

238.5 KB Created: 2021-04-04 12:49:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: b52acbea6d6fd8a2f210fbbf68374a9a SHA-1: 5f0e96f89270d2ed51fbc4aed71944f7e45ee844 SHA-256: 521aa5f5c1e931cdc37db3ebb5bb52d5fcceee4649f6222b98211b20b16c6588
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file is identified as a phishing lure, containing a full-page image designed to trick users into clicking a malicious link. The embedded URL, http://gaminggenerator.org/app/431946152/roblox-studio-download-free-for-ipad, is presented as a download for Roblox Studio, a common lure for distributing malware or conducting phishing. ClamAV also detected this file as Pdf.Phishing.Roblox062100-9873116-0, further supporting its malicious nature.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3410

Heuristics 5

  • ClamAV: Pdf.Phishing.Roblox062100-9873116-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Roblox062100-9873116-0
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 238 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://gaminggenerator.org/app/431946152/roblox-studio-download-free-for-ipad
    • https://www.ergolight.at/images/snaypes-roblox-free-download.pdf
    • http://www.remiauclair.fr/images/roblox-obux-hack-client.pdf
    • http://vagency.us/images/free-roblox-hack-for-ipad.pdf
    • https://consorziocsa-asicaivano.it/images/how-to-make-your-own-roblox-hack.pdf
    • http://gops.pruszczgdanski.pl/images/how-to-hack-mad-city-roblox-step-by-step.pdf
    • http://canadatowers.com/images/free-roblox-card-generater.pdf
    • https://www.romedia.gr/images/how-to-get-free-robux-by-doing-nothing.pdf
    • http://santeh-40.ru/images/free-admin-roblox-2021.pdf
    • http://altc.de/images/auto-keyboard-roblox-free.pdf
    • http://uptodate.az/images/dominus-rex-for-free-roblox-extreme-hacks.pdf
    • https://www.hbproducts.dk/images/f3x-hacking-roblox.pdf
    • http://biotronics.com.cy/images/ninja-legends-hackauto-farmer-free-op-swordroblox.pdf
    • https://www.cosmosdawn.net/images/free-dominus-roblox-not-a-model.pdf
    • http://abletrustcare.com/images/roblox-shred-money-hack.pdf
    • http://www.controverseinterapie.it/images/free-robux-working.pdf
    • http://www.evaplast.by/images/free-robux-promo-codes-wiki.pdf
    • https://www.iadh.bi/images/generator-get-robux-free.pdf
    • http://www.sapaengineering.kz/images/roblox-westover-islands-cheat.pdf
    • http://laboraltoledo.com/images/how-to-hack-roblox-deathrun-2021.pdf
    • http://nikabio.com/images/how-to-buy-free-robux-on-roblox.pdf
    • http://kruiz21.ru/images/how-to-get-your-hacked-roblox-account-back.pdf
    • http://demenagementlandry.com/images/free-items-in-roblox-catalog-working-2021.pdf
    • http://giolantapepe.gr/images/free-survey-robux.pdf
    • http://www.apocalissedigesucristo.com/images/free-robux-codes-no-survey-no-download-2021.pdf
    • https://www.ausecus.com/images/free-hat-codes-roblox.pdf
    • http://centuriatus.com/images/earn-free-robux-robloxwin.pdf
    • http://traveltrucks.com.au/images/bot-roblox-game-free.pdf
    • https://www.ncscolour.no/images/ban-roblox-hacks.pdf
    • http://malichy.pl/images/how-to-get-expensive-roblox-items-for-free.pdf
    • http://lechia-sedziszow.pl/images/twitter-free-robux-codes.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000368f0.bin
8e90ca83db56ccf9fa27b6bdaef9bd9ee25d7e37da9d4f8ec488d325751945b0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x368F0 19140 bytes
font_01_sfnt_off00039114.bin
1b2857f3b739db2a99be5d7965aae9c5532eb8792cb9fa1ab515ddd7cb3b083b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x39114 18616 bytes

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