PDF static analysis report

Static analysis result for SHA-256 455608d0cf945ddc…

SUSPICIOUS

PDF

45.0 KB Created: 2021-05-16 13:17:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: fb4c780ae7eefad81c373a9939cea680 SHA-1: e81ca396b188b4f1bc6a44546baf8fd330dc4fe2 SHA-256: 455608d0cf945ddcaf6551fa5ba691de7f8629cb45cc50ed3509e081fc172ab0
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains lures for free Robux and embeds multiple URLs, one of which is directly linked to a download lure. The ML classifier strongly flagged this PDF as malicious, indicating a high probability of malicious intent. While no scripts were extracted, the presence of external URIs and the ML classification suggest the document is designed to trick users into downloading a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

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/free-robux-only-1-step-game-hack PDF link annotation
    • http://gops.pruszczgdanski.pl/images/free-minecraft-games-for-kids_GM479516143.pdfIn PDF document text
    • http://gops.pruszczgdanski.pl/images/coin-master-free-coins-link-2021_GM406889139.pdfIn PDF document text
    • http://gops.pruszczgdanski.pl/images/promo-code-free-robux_GM431946152.pdfIn PDF document text
    • http://gops.pruszczgdanski.pl/images/blox-world-free-robux_GM431946152.pdfIn PDF document text
    • http://gops.pruszczgdanski.pl/images/coin-master-hack-tool-pc-download_GM406889139.pdfIn PDF document text
    • http://gops.pruszczgdanski.pl/images/coin-master-hack-com_GM406889139.pdfIn PDF document text
    • http://gops.pruszczgdanski.pl/images/coin-master-cheat-free_GM406889139.pdfIn PDF document text
    • http://gops.pruszczgdanski.pl/images/free-coins-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://gops.pruszczgdanski.pl/images/free-coins-and-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://gops.pruszczgdanski.pl/images/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://gops.pruszczgdanski.pl/images/coin-master-free-pin_GM406889139.pdfIn PDF document text
    • http://gops.pruszczgdanski.pl/images/minecraft-online-free-download_GM479516143.pdfIn PDF document text
    • http://gops.pruszczgdanski.pl/images/how-do-we-get-free-robux_GM431946152.pdfIn PDF document text
    • http://gops.pruszczgdanski.pl/images/coin-master-free-spins-link-blogspot-2021_GM406889139.pdfIn PDF document text
    • http://gops.pruszczgdanski.pl/images/free-spins-from-coin-master_GM406889139.pdfIn PDF document text
    • http://gops.pruszczgdanski.pl/images/minecraft-free-download-android-apk-014-0_GM479516143.pdfIn PDF document text
    • http://gops.pruszczgdanski.pl/images/daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://gops.pruszczgdanski.pl/images/roblox-verification_GM431946152.pdfIn PDF document text
    • http://gops.pruszczgdanski.pl/images/how-to-hack-coin-master-using-es-file_GM406889139.pdfIn PDF document text
    • http://gops.pruszczgdanski.pl/images/wurst-115-2_GM479516143.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_off0000487b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x487B 24044 bytes
SHA-256: d40a0a76db00ad94a6e2777fb2acec64b1175f5af9d8d057348a1f57e4ec35cd
font_01_sfnt_off00007f6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F6D 3884 bytes
SHA-256: 40b61f8938bd710dc29dc58ba3fde91c245a6a69596ec569b4d27c769ca417cf
font_02_sfnt_off00008c14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C14 18656 bytes
SHA-256: 070bf31dcf9002553526675ed1cd7b39f0747279791c235f0424fbc506b236c5