Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1fca4ce8584b77d…

MALICIOUS

PDF

238.1 KB Created: 2021-04-05 07:19:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 007bbd3bbab5cb1d02fcba07412ef04e SHA-1: 74b383c860368c1b67bb9724376591e3814e7b91 SHA-256: e1fca4ce8584b77d0d6259daf426a835890b11be7103efd3fd5db34815d2cbf3
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV and an ML classifier, with heuristics pointing to embedded external URIs. The document body, though heavily obfuscated, contains references to "Roblox" and "hacks", aligning with the detected URLs that promote "Roblox hacks" and "free Robux". No scripts were extracted from this sample, but the presence of external URIs suggests a potential phishing or scam lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8436

Heuristics 3

  • ClamAV: Pdf.Phishing.Roblox062100-9873116-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Roblox062100-9873116-0
  • 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-make-roblox-hacks PDF link annotation
    • https://www.cosmosdawn.net/images/how-to-get-5-robux-for-free.pdfIn PDF document text
    • https://www.gvandenakker.nl/images/how-to-get-free-robux-no-human-verification-2021-real.pdfIn PDF document text
    • http://palogar.es/images/roblox-pc-hacks.pdfIn PDF document text
    • https://scraperite.com/images/free-roblox-robux-gift-cards.pdfIn PDF document text
    • http://peche-madagascar.com/images/chat-uncensor-hack-roblox.pdfIn PDF document text
    • http://cosver.eu/images/free-robux-using-points.pdfIn PDF document text
    • http://abletrustcare.com/images/free-accessory-bear-face-mask-in-roblox.pdfIn PDF document text
    • http://unionmusicaldebenidorm.com/images/noclip-roblox-hack-download.pdfIn PDF document text
    • http://scuttworksdesigns.us/images/get-free-roblox-hats.pdfIn PDF document text
    • http://safetin.ru/images/free-robux-cheats-2021.pdfIn PDF document text
    • http://arch-centr.ru/images/how-to-get-robux-free-2021.pdfIn PDF document text
    • https://www.brainpads.com/images/hack-in-roblox-to-get-robux.pdfIn PDF document text
    • https://www.knxuk.org/images/free-roblox-hack-for-ipad.pdfIn PDF document text
    • https://semanasantacehegin.com/images/roblox-hack-bss.pdfIn PDF document text
    • https://www.ergolight.at/images/money-hack-mad-city-roblox.pdfIn PDF document text
    • http://fratellimazzoleni.it/images/free-roblox-items-to-sell.pdfIn PDF document text
    • http://force-seniorklub.dk/images/hacking-page-for-roblox.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/roblox-2021-free-hat.pdfIn PDF document text
    • https://scraperite.com/images/dragon-ball-online-roblox-cheats.pdfIn PDF document text
    • http://www.cbgp.upm.es/images/tap-this-for-free-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_002_off0003693a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3693A 21824 bytes
SHA-256: 6c5dcca51fa86345f0ce30edc2cbff3aab667700b3dabe7e432aaf84dddf70b7
font_01_sfnt_off00039922.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x39922 17952 bytes
SHA-256: 0b8fa6a25e321a72c7e39320425d2df7f46843bdd0f100e364586b2a4675f7ef