Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ed55c0b6a4e476c…

MALICIOUS

PDF

40.4 KB Created: 2021-04-04 01:47:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 5c72bdec00f11d30a075824c1dbe9630 SHA-1: 07963f0d6c2b82371f3b580bc4104c2a89863fe4 SHA-256: 0ed55c0b6a4e476cfa861e4e6e7923efc0e8161777d1977ba905eaa566e2cdfc
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by an ML classifier. It uses a fake-CAPTCHA lure. The file presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9500

Heuristics 4

  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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/robux-hack-no-download-2021 PDF link annotation
    • http://uctovnictvosnv.sk/images/free-robux-pins-not-used-2021.pdf%0AIn PDF document text
    • https://socialvalue.gr/images/free-robux-scammers-to-troll.pdf%0AIn PDF document text
    • https://verdensbarn.no/images/proxo-roblox-hack.pdf%0AIn PDF document text
    • http://bkd1.balikpapan.go.id/images/robloxain-roblox-hacks-robux.pdf%0AIn PDF document text
    • http://uptodate.az/images/plutonium-hack-roblox.pdf%0AIn PDF document text
    • https://www.lavigny.ch/images/roblox-bux-hack.pdf%0AIn PDF document text
    • http://www.malonmalon.com.ar/images/join-the-group-for-a-free-sword-roblox.pdf%0AIn PDF document text
    • https://www.elevage-chiot.fr/images/doge-ahat-free-roblox.pdf%0AIn PDF document text
    • http://poltekkeskhjogja.ac.id/images/roblox-followers-hack-2021.pdf%0AIn PDF document text
    • http://abletrustcare.com/images/how-to-hack-rpg-games-on-roblox.pdf%0AIn PDF document text
    • http://svp-steinmaur.ch/images/get-robux-with-cheat-engine.pdf%0AIn PDF document text
    • http://www.boic.nl/images/hack-roblox-online-no-survey.pdf%0AIn PDF document text
    • http://baah.ca/images/free-robux-every-5-seconds.pdf%0AIn PDF document text
    • http://zarinnameh.ir/images/robloxcatalog-free-robux.pdf%0AIn PDF document text
    • https://www.cnte.org.br/images/how-to-get-free-robux-easy-without-downloading-apps.pdf%0AIn PDF document text
    • http://www.kalaaliaraq.dk/images/roblox-free-pets-in-pet-simulator.pdf%0AIn PDF document text
    • http://zarinnameh.ir/images/free-robux-generator-no-human-verification-mobile.pdf%0AIn PDF document text
    • https://waterpark.by:443/images/how-to-get-free-robux-nicsterv-2021.pdf%0AIn PDF document text
    • http://onlinemusicsolutions.com.au/images/free-robux-no-download-no-password.pdf%0AIn PDF document text
    • https://www.inova-cuisine.fr/images/boku-no-roblox-hack.pdf%0AIn PDF document text
    • http://iluvlocalplaces.com/images/roblox-hack-unlimited-robux.pdf%0AIn PDF document text
    • https://reggieslockandkey.com/images/logo-hacker-roblox.pdf%0AIn PDF document text
    • http://www.actae.gr/images/can-you-change-your-roblox-username-for-free.pdf%0AIn PDF document text
    • http://bilhetim.com.br/images/hacks-to-get-robux-in-roblox.pdf%0AIn PDF document text
    • https://www.lomrad.go.th/images/learn-roblox-lua-free.pdf%0AIn PDF document text
    • http://www.htc.edu.au/images/earn-free-roblox-jailbreak-money.pdf%0AIn PDF document text
    • https://www.eglihotel.gr/images/how-to-give-yourself-money-in-roblox-games-cheat-engine.pdf%0AIn PDF document text
    • http://poltekkeskhjogja.ac.id/images/roblox-dragon-ball-z-final-stand-hacks-download.pdf%0AIn PDF document text
    • https://jdlgroup.ca/images/discord-free-t-shirts-roblox.pdf%0AIn PDF document text
    • http://leigraphics.com/images/how-to-give-yourself-free-robux.pdf%0AIn 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_003_off000044c5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x44C5 23476 bytes
SHA-256: 664d997fb7a6fd9ab565ced08e3bcd4bd0a122d1ab4c6277198d901ce3f56f24
font_01_sfnt_off000079ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79BA 18480 bytes
SHA-256: 634a42ac7d65b46b170bd4dd33adbc2109a312b525a19c89bf3200a679df3225

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