Malicious PDF — malware analysis report

Static analysis result for SHA-256 a59081fbd6edd844…

MALICIOUS

PDF

35.2 KB Created: 2021-06-26 08:40:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 158fc50a833d77f2b2a2d461019ed575 SHA-1: f030e1f69d86919d0afa4cd38274b62f8500c716 SHA-256: a59081fbd6edd84403e136ec0e78714f74246ffa12503281bf2f477819291f63
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a large number of external links, many of which are presented as SEO-optimized links to game-related hacks and currency. The ML classifier strongly indicated maliciousness, and the presence of numerous links to external resources suggests an attempt to redirect users to malicious sites or download unwanted software. The document body, though partially corrupted, contains references to 'Roblox Hack Game 2021' and similar lures.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/roblox-hack-game-2021-game-hack PDF link annotation
    • http://library.futureuniversity.com/repository/robux-hack-free-robux_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-promo-codes-for-roblox-robux2021_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/coin-master-hack-app-link_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-links-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/get-me-free-robux-now_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/how-to-get-a-free-2021-roblox-acc_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/minecraft-bedrock-edition-free-with-java_GM479516143.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/pubg-uc-hilesi_GM1330123889.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/how-to-get-free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-robux-no-anything_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-robux-gen_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-gift-cards-robux-codes-no-survery_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/descargar-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/coin-master-daily-free-spins-link-download_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/coin-master-links-for-today_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/roblox-cbro-free-money-hack_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/get-roblox-hack-2021_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-game-pack-coin-master_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-robux-no-email_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-coin-master-spins-for-today_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
font_00_sfnt_off0000314d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x314D 22540 bytes
SHA-256: ae7cc701b838be4ec75c23961eb7b2a8c1edf518955e6654706791e1511da14a
font_01_sfnt_off000063b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63B6 19320 bytes
SHA-256: 2f07ee9d787905bc82093013eaed2b8a1b00c99575ae102c3b6ed77313755fd3

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