PDF static analysis report

Static analysis result for SHA-256 45569107085ec678…

SUSPICIOUS

PDF

42.2 KB Created: 2021-04-28 06:29:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: eed1d95db06a03038f56e981d7c954da SHA-1: 7026c00e33fc6b04b91fefceee580c919aae05f6 SHA-256: 45569107085ec678048b430a4ea112886bf3dd2ad66f5f0bb1e56a50daf9e93e
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded URLs and a primary external URI pointing to a domain associated with game hacks, specifically 'robux-free'. The ML classifier also flagged this PDF as malicious. The presence of these links suggests the document is designed to trick users into downloading a secondary payload, likely malware, by promising free in-game currency.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9774

Heuristics 3

  • 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 https://netcdn.xyz/app/431946152/robux-free-co-game-hack PDF link annotation
    • http://www.saburai.ac.id/elibrary//repository/change-org-free-robux.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/hacks-impulse-testing-roblox.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/how-to-get-free-robux-with-no-coupon.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/free-robux-codes-2021-not-used.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/roblox-how-to-get-free-items-in-catalog-2021.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/how-to-get-stuffes-for-free-in-roblox.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/free-roblox-video.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/how-to-get-catalog-items-for-free-roblox-no-hack.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/how-to-make-a-roblox-hack-using-hxd.pdfIn PDF document text
    • http://www.saburai.ac.id/elibrary//repository/the-roblox-hack-com.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00003e57.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3E57 26832 bytes
SHA-256: 2a9cbdd35e297d47e8dd20381b31be26d222caef22ebfc5a0aef3a9370deb8ec
font_01_sfnt_off000079fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79FD 2848 bytes
SHA-256: 4737c2778a085e0cb49e73f3b054b1a71e3f40720d213b4bfda97f95a31bfbf1
font_02_sfnt_off000083bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83BF 18012 bytes
SHA-256: 3f1ded8a9c51e4f0f41c660fd84d3573ebe8f92a83837bcaa523a9614d650e73