Malicious PDF — malware analysis report

Static analysis result for SHA-256 87579be60706aae1…

MALICIOUS

PDF

43.8 KB Created: 2021-05-14 21:41:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 0c2d465bae3537010a3da93b0e817007 SHA-1: d30490b8386fc3bb3562fa69ee5f9b740adf51dd SHA-256: 87579be60706aae16f0fc93a11df2153c4c2ec8d297dd0c46d196d80083b86a0
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of external links, many of which are SEO-optimized and point to sites offering 'free Robux' or game hacks, indicating a link farm designed to attract users. The ML classifier also flagged this PDF as malicious. While no scripts were explicitly extracted, the PDF structure and embedded links suggest a malicious workflow aimed at redirecting users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/orewards-com-free-robux-game-hack PDF link annotation
    • http://behsanroshd.com/images/kuso-icu-roblox-hack_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/www-roblox-com-robux-free_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/how-to-get-free-gamepasses-on-roblox_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/how-to-get-free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/roblox-free-models_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/100-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/coin-master-hack-apk-with-fb-login-2021_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/coin-master-70-spin-link-2021_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/hackear-coin-master_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/minecraft-java-edition-key-free_GM479516143.pdfIn PDF document text
    • http://behsanroshd.com/images/free-spins-coin-master-no-verification_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/coin-master-game-hack-app_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/coin-master-free-spin-and-coins-links_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/free-robux-discord-servers_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/is-there-any-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/how-to-get-free-robux-games_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/collect-free-spins-coin-master_GM406889139.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_off00004cd7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4CD7 25436 bytes
SHA-256: d700de4dd675387e3fdb6310473cf92d36862c290c3686f2d444b1df76b11405
font_01_sfnt_off00008706.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8706 18840 bytes
SHA-256: db65450964d7be290e65cdc2a92251ec8b560453bbe28e14c4f3d4713211f4b7

Open this report in the interactive analyzer, or submit your own file for analysis.