Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb9a3f2a3583d9d5…

MALICIOUS

PDF

244.1 KB Created: 2021-04-05 05:35:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 72e7559a24e6d580ba53213f110b1bbc SHA-1: b0a8b8b3343a80f15e17e34aa334341a1b24d7ee SHA-256: bb9a3f2a3583d9d5ed45a4bb0cf0fe4bcd5e7c6e383bdec2b5f892bab470f9ce
72 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is a PDF document that contains numerous URLs pointing to sites offering cheats and hacks for the game Roblox. The ClamAV heuristic identifies it as a phishing attempt related to Roblox. The document body, though heavily obfuscated, contains text related to 'free plus on Roblox' and 'wkhtmltopdf', suggesting a lure for in-game items. The presence of embedded URLs and the phishing detection strongly indicate a malicious intent to trick users into visiting potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.2693

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/how-to-get-free-plus-on-roblox-meepcity-2021 PDF link annotation
    • http://rafaelmontesinos.com/images/sandra-how-to-get-free-items-roblox.pdfIn PDF document text
    • http://autenticohostalsalou.com/images/roblox-free-draw-bot.pdfIn PDF document text
    • http://linde-erbach.de/images/how-to-get-your-hacked-account-back-on-roblox-2021.pdfIn PDF document text
    • http://lv-siegen.de/images/download-the-cheat-tool-for-roblox.pdfIn PDF document text
    • https://www.appartamenticroazia24.com/images/hacking-into-my-brothers-roblox-account.pdfIn PDF document text
    • http://brusivojimi.com/images/roblox-jump-hack-check-cashed.pdfIn PDF document text
    • https://gryps.de/images/roblox-hack-that-works-jailbreak.pdfIn PDF document text
    • http://lakomat.by/images/roblox-the-future-hack.pdfIn PDF document text
    • http://schottlandfieber.de/images/how-to-hack-filtering-enabled-games-roblox.pdfIn PDF document text
    • http://iacovoulaw.com/images/roblox-hacked-cliient.pdfIn PDF document text
    • http://indotec.fr/images/dowload-free-robux-hack-for-free.pdfIn PDF document text
    • http://traveltrucks.com.au/images/youtube-how-to-get-free-items-on-roblox.pdfIn PDF document text
    • http://britishcomics.com/images/roblox-jailbreak-freeing-prisoner-from-handcuffs.pdfIn PDF document text
    • http://escolaarboc.cat/images/hacking-simulator-game-roblox.pdfIn PDF document text
    • http://asiashop-france.fr/images/free-robux-glitch-2021-ios.pdfIn PDF document text
    • http://nosocomium.rv.ua/images/roblox-jacket-free.pdfIn PDF document text
    • http://bagna.pl/images/free-robux-with-no-human-verification.pdfIn PDF document text
    • http://harmonygardens.ca/images/free-gui-roblox.pdfIn PDF document text
    • http://jasperfirstumc.com/images/how-to-hack-in-entry-point-roblox.pdfIn PDF document text
    • http://southernhills-golf.com/images/www-free-robux-today.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_003_off000370f4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x370F4 23984 bytes
SHA-256: 2d5d037c63dd8fd390274a7e0f49010515318ff7a258fa7d714efec4795cec54
font_01_sfnt_off0003a70e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3A70E 19312 bytes
SHA-256: 8284f43b34ba9b019b176762bbe09f52b41e647c90f5d0622afd5dee2555adb0

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