Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc39c38225bb0318…

MALICIOUS

PDF

254.2 KB Created: 2021-04-05 12:52:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-06-13
MD5: c675512aea41fa0edb40093e46914112 SHA-1: 429e25ecdf320f4c475b4e2726ed0ddc7420ceb2 SHA-256: cc39c38225bb0318ca3aa811efcdfb58ed24f71d21e25e06ec875d00a3249932
72 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV with a specific phishing signature related to Roblox. It contains multiple embedded URLs pointing to domains that likely host further malicious content or phishing pages, all related to 'free Robux' or game hacks. The document body, though heavily obfuscated, contains text related to 'Free Robux Password Needed' and the authoring application suggests it was generated by wkhtmltopdf, often used to create malicious PDFs.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3043

Heuristics 4

  • ClamAV: Pdf.Phishing.Roblox062100-9873116-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Roblox062100-9873116-0
  • 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/free-robux-password-needed PDF link annotation
    • http://gitagasht.com/images/change-name-roblox-free.pdfIn PDF document text
    • http://www.sitiamministrabili.it/images/free-pet-roblox-grow-a-candy-cane.pdfIn PDF document text
    • http://livebybuddhism.org/images/google-play-games-free-download-roblox.pdfIn PDF document text
    • http://julo-it.net/images/hack-roblox-hack-online.pdfIn PDF document text
    • http://www.les2alpes-location.com/images/how-to-get-free-admin-comands-on-roblox.pdfIn PDF document text
    • http://www.liceoantoniotoledo.com/images/sites-de-hacking-de-compte-roblox.pdfIn PDF document text
    • http://axia-verlag.at/images/how-to-get-free-gamepass-in-roblox-2021.pdfIn PDF document text
    • http://www.pcclawyers.com.au/images/ex-7-roblox-hack.pdfIn PDF document text
    • http://wcasrock.org/images/202100-robux-promo-code-free.pdfIn PDF document text
    • http://energotestcontrol.ru/images/how-to-hack-the-streets-roblox.pdfIn PDF document text
    • http://www.lrnetwork.es/images/roblox-gamepass-hack-script.pdfIn PDF document text
    • http://yochin.org.tw/images/how-2-hack-roblox.pdfIn PDF document text
    • http://pia2000.net/images/assassin-roblox-hacked.pdfIn PDF document text
    • http://abst-brandschutztechnik.com/images/hack-tool-roblox-download.pdfIn PDF document text
    • https://bancroftandsons.com/images/roblox-hack-free-robux-and-tix-2021.pdfIn PDF document text
    • http://www.torvet11.dk/images/assassin-always-jumping-hack-roblox.pdfIn PDF document text
    • http://www.centrodelsorriso.it/images/roblox-drive-shaft-money-hack.pdfIn PDF document text
    • http://finalstand.org/images/paypal-roblox-hack.pdfIn PDF document text
    • http://www.fluidtech.hu/images/roblox-hack-sans-verification-humaine.pdfIn PDF document text
    • https://lesegais.ru/images/free-robux-hack-download-pc.pdfIn PDF document text
    • http://elize-photography.co.za/images/how-to-get-free-robux-on-roblox-no-verification.pdfIn PDF document text
    • http://cosver.eu/images/roblox-full-spiderman-outfit-free.pdfIn PDF document text
    • https://kldcardio.ru/images/get-free-robux-no-inspect-fake.pdfIn PDF document text
    • https://millatgears.com/images/roblox-script-greenwood-town-free-vampire.pdfIn PDF document text
    • http://gremihostaleria.cat/images/how-to-hack-a-youtuber-on-roblox.pdfIn PDF document text
    • https://waterpark.by:443/images/infinite-money-hack-for-roblox.pdfIn PDF document text
    • http://bc97.de/images/how-to-get-free-stuff-from-the-catalog-on-roblox.pdfIn PDF document text
    • http://the-specials.ch/images/roblox-hack-tokyo-ghoul.pdfIn PDF document text
    • http://karldall.dk/images/free-pokemon-go-roblox-codes.pdfIn PDF document text
    • https://www.hofe-gmbh.de/images/free-cool-clothes-roblox.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
stream_004_off000398b2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x398B2 24764 bytes
SHA-256: 62e60dde0f1ff4631b828c5f6af87af7e673895b91423275d0c8ec48265ecf3b
font_01_sfnt_off0003d171.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3D171 18156 bytes
SHA-256: ece70eabe5e33df96e7e67449f5dd84d960cc4b85ad8909486afbf1f2937ed9b