Malicious PDF — malware analysis report

Static analysis result for SHA-256 26c463e8946f19fc…

MALICIOUS

PDF

243.8 KB Created: 2021-04-04 23:00:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-07-10
MD5: 36d4a01657153a75e17b1cecd1338722 SHA-1: fed286a8505fb7981051a1ac644b8a539272459a SHA-256: 26c463e8946f19fc575ad7650132b5fe886add7d11fe7cf3ca99d9c0fdae04b1
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. The document body, though heavily obfuscated, contains references to 'Roblox Trial' and 'wkhtmltopdf', suggesting a lure. An embedded URI points to a suspicious domain associated with 'free builders club roblox trial', reinforcing the phishing pretext. No scripts were extracted, but the presence of embedded URLs and the ClamAV detection strongly indicate a phishing attempt.

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/free-builders-culb-roblox-trial PDF link annotation
    • https://hbpbenin.com/images/gabe-youtube-free-robux.pdfIn PDF document text
    • https://www.millatgears.com/images/free-robux-without-robot-verification.pdfIn PDF document text
    • http://www.lascalamilanowallcovering.it/images/roblox-hack-2021-how-to-get-free-robux-and-more.pdfIn PDF document text
    • http://j-cook.pro/images/free-roblox-shading.pdfIn PDF document text
    • http://www.controverseinterapie.it/images/free-cool-pants-roblox.pdfIn PDF document text
    • http://dmoraitis.gr/images/hack-roblox-gift-card-codes.pdfIn PDF document text
    • http://instrutech.co.th/images/cool-hacks-for-roblox.pdfIn PDF document text
    • http://ecoleduchat-grenoble.fr/images/cheat-engine-roblox-jailbreak-hack.pdfIn PDF document text
    • http://ehma.com/images/free-robux-hack-without-human-verification.pdfIn PDF document text
    • https://zszolesno.pl/images/robuxmaniac-com-free-robux.pdfIn PDF document text
    • http://unilin21.ru/images/free-robux-hack-generator-inpect.pdfIn PDF document text
    • http://s-punkt-objects.de/images/www-bandicam-com-free-robux.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/free-robux-20219.pdfIn PDF document text
    • https://belixconstructions.com.au/images/free-robux-only-enter-username.pdfIn PDF document text
    • http://nevesomost.by/images/how-to-get-free-builders-club-on-roblox-ios.pdfIn PDF document text
    • http://behsanroshd.com/images/how-to-hack-into-your-friends-roblox-account.pdfIn PDF document text
    • http://bau-lk.de/images/free-roblox-scibt-pack-exploit-2021.pdfIn PDF document text
    • http://j-cook.pro/images/free-promo-codes-roblox-november-2021.pdfIn PDF document text
    • http://schlossschaenke-andernach.de/images/how-to-hack-roblox-accounts-with-roblosecurity.pdfIn PDF document text
    • http://prohsa.com/images/roblox-code-hack-robux.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_off000372f3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x372F3 24092 bytes
SHA-256: db2237c4419256feec5abfca6f243ce5339f7d62a366680933923579f6e123cc
font_01_sfnt_off0003a958.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3A958 18032 bytes
SHA-256: 1a15fc87cc5516c3e374ec75b6ccdd08d2ec6d1936124fb8043b6b28130c3940