Malicious PDF — malware analysis report

Static analysis result for SHA-256 c775a7c0a99bbb75…

MALICIOUS

PDF

48.1 KB Created: 2020-08-25 20:08:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 017f1a64f72bc9212c1f2163c37cd39e SHA-1: 6bc46201100d439203611ef1659128be12bac970 SHA-256: c775a7c0a99bbb757cac1438903d2e1ce7028db4801e338a3adf768d7d185219
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.link/pify?keyword=shameless+season+6+episode+8'. This link is presented within the document body, suggesting a social engineering lure. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to shopify.com, likely to obscure the malicious destination. The ML classifier strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://ttraff.link/pify?keyword=shameless+season+6+episode+8
    • http://files.oakbayband.com/uploads/1/3/0/8/130873932/wejusa.pdf
    • http://files.javacornersc.com/uploads/1/3/1/3/131383964/4a6685e1d8.pdf
    • http://files.sjuartdesign.com/uploads/1/3/1/6/131606087/wulixakitanajukaf.pdf
    • http://fuwejinax.benedictarenee.com/uploads/1/3/0/8/130814328/1204247.pdf
    • https://cdn.shopify.com/s/files/1/0428/3770/4867/files/jevinafokibi.pdf
    • https://cdn.shopify.com/s/files/1/0439/1917/9931/files/17178364357.pdf
    • https://cdn.shopify.com/s/files/1/0432/7391/2488/files/35114775286.pdf
    • https://cdn.shopify.com/s/files/1/0432/4291/3955/files/70322476419.pdf
    • https://cdn.shopify.com/s/files/1/0431/3415/6967/files/miseresaz.pdf
    • https://cdn.shopify.com/s/files/1/0433/4977/0408/files/bowling_ball_drilling_layout_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0438/8939/3816/files/assembly_language_for_x86_processors_7th_edition_solution_manual.pdf
    • https://cdn.shopify.com/s/files/1/0434/5180/9957/files/81150411044.pdf
    • https://cdn.shopify.com/s/files/1/0435/0512/3493/files/bail_recognizance_form.pdf
    • https://cdn.shopify.com/s/files/1/0431/7567/4024/files/1190021976.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006f69.bin
62202f2b961b5d55222658f1afe944fbae8e942b0852836e597ab251f643a40e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F69 5264 bytes
font_01_sfnt_off0000810e.bin
3266c17c0ffaf7a86c5edec786863375ae03cffcaccfe5a76abba65e63f5d034		 pdf-font-stream PDF embedded font (sfnt) at offset 0x810E 10760 bytes
font_02_sfnt_off0000a5c2.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA5C2 4324 bytes

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