Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7cf3ea684818b92…

MALICIOUS

PDF

250.8 KB Created: 2021-04-04 11:31:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 15ec0a285df92cbb3bef9c365ffbe087 SHA-1: e435c27939f6d63887c67a5470ef4fd99ad24b58 SHA-256: c7cf3ea684818b922da56da7fdea45a4e8464e18913b1fb9241bd9e35af37b74
112 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a lure for free Robux codes, a common tactic in phishing and scam campaigns. The heuristic 'SE_CLIPBOARD_COMMAND_LURE' indicates the document likely instructs the user to paste content into a command-line interface, suggesting an attempt to execute further malicious commands or download additional payloads. The ClamAV detection further confirms its malicious nature, identifying it as a phishing PDF.

Machine Learning

  • Nyx PDF Classifier clean score 0.1227

Heuristics 5

  • ClamAV: Pdf.Phishing.Roblox062100-9873116-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Roblox062100-9873116-0
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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-codes-real-2021 PDF link annotation
    • http://hindicenter.com/images/roblox-jailbreak-cheats-pc.pdfIn PDF document text
    • https://www.prodex-holz.cz/images/roblox-hacks-for-ninja-legends.pdfIn PDF document text
    • http://safeandsecurelocksmith.ca/images/free-roblox-currency.pdfIn PDF document text
    • https://tokunfome.com.br/images/how-to-get-promo-codes-robux-free-202100.pdfIn PDF document text
    • http://www.agri-tech.com.au/images/sunset-coast-gui-roblox-hacks.pdfIn PDF document text
    • https://www.stkdb.cz/images/free-robux-2021-unpatched.pdfIn PDF document text
    • http://laboraltoledo.com/images/redeem-free-robux-code.pdfIn PDF document text
    • https://hassel-event.de/images/roblox-in-game-hack.pdfIn PDF document text
    • http://5346000.com/images/generator-robux-free-2021-sans-verification.pdfIn PDF document text
    • http://salantiskis.lt/images/pastebin-free-robux-100-works.pdfIn PDF document text
    • https://yarburservices.ru/images/how-to-get-free-shirts-on-roblox-no-bc-2021.pdfIn PDF document text
    • http://pasqualeferorelli.it/images/hack-tool-roblox-2021.pdfIn PDF document text
    • https://consorziocsa-asicaivano.it/images/games-with-cheat-codes-roblox.pdfIn PDF document text
    • http://ns1.radiofacil.net/images/get-the-free-robux.pdfIn PDF document text
    • http://www.web.stc-part.co.th/images/how-to-cheat-in-hole-in-the-wall-roblox.pdfIn PDF document text
    • https://www.manisoft.ir/images/how-do-i-get-100-robux-for-free.pdfIn PDF document text
    • http://biccairo.com/images/free-robux-codes-2021-not-expired.pdfIn PDF document text
    • http://horsa18.ru/images/roblox-booga-booga-cheats.pdfIn PDF document text
    • https://rincondelentrenador.com/images/bloxfree-roblox-hack.pdfIn PDF document text
    • http://hemmet-strand.dk/images/cheat-engine-roblox-hack-client.pdfIn PDF document text
    • http://the-specials.ch/images/how-to-get-free-skins-in-counter-blox-roblox-offensive.pdfIn PDF document text
    • https://www.audev.com/images/roblox-hacks-2021-jailbreak.pdfIn PDF document text
    • https://bapalaye.org/images/free-robux-generator-xyz.pdfIn PDF document text
    • http://immo360grad.com/images/free-roblox-thumbnail.pdfIn PDF document text
    • http://www.jureclomas.com.ar/images/roblox-how-to-hack-gears-online-rpg-using-cheats.pdfIn PDF document text
    • http://agrupamentoescolas-alfredo-da-silva.com/images/roblox-aimbot-hack.pdfIn PDF document text
    • https://gaj.rs/images/hack-para-atravesar-paredes-en-roblox-2021.pdfIn PDF document text
    • http://www.peterdejonge.nl/images/breezex-adventures-hacks-roblox.pdfIn PDF document text
    • http://rushxpress.de/images/roblox-hack-pc-2021.pdfIn PDF document text
    • https://newenglandafs.com/images/free-roblox-shirts-to-take.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_007_off00038ac8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x38AC8 24236 bytes
SHA-256: 3868b368a1dc90b03b41d6d6a354eaba7cce0222e36df67e2da8f087e3df3fd1
font_01_sfnt_off0003c206.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3C206 18316 bytes
SHA-256: cc163c1634e0c81f649dd8c22604bdfc7e67fd68e41c6641f8714ecd80ebd9e7

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