Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3f0bb9708a764fd…

MALICIOUS

PDF

46.1 KB Created: 2020-08-29 23:56:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a9149094887a63e60be1fb7be65dbb39 SHA-1: 69dff5537d4f4b899b665e9880ea0ac71a831fe8 SHA-256: d3f0bb9708a764fd4d3c6c6821f0f7205f26da148d108fbbdf964df567e7a6a8
150 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, many of which point to a redirector service (ttraff.cc). This behavior is indicative of a link farm used to obscure the final destination and potentially distribute malicious content or conduct phishing. The ML classifier also 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.cc/wix?keyword=uta+hagen%252527s+9+questions
    • https://cdn.shopify.com/s/files/1/0431/0299/4586/files/pudilisizebenedu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/80023348890.pdf
    • https://cdn.shopify.com/s/files/1/0431/4189/0209/files/a_frame_house_plans.pdf
    • https://cdn.shopify.com/s/files/1/0430/4257/0401/files/64763595446.pdf
    • https://static.usrfiles.com/ugd/b8c837_547e7f4c360c4de6b20de528eb92bbc0.pdf
    • https://static.usrfiles.com/ugd/b8c837_33d84e90bdab4954aa2d72f930cf5664.pdf
    • https://static.usrfiles.com/ugd/b8c837_a8e95e2013994364bea4f705c4d6cb64.pdf
    • https://static.usrfiles.com/ugd/b8c837_b4ddae6f16c24df8802168dbf9c83dd1.pdf
    • https://static.usrfiles.com/ugd/b52961_21b7a28f68384144bee92258dfb658fb.pdf
    • https://static.usrfiles.com/ugd/b8c837_e8842bec2de24456a8403725306eee8f.pdf
    • https://static.usrfiles.com/ugd/b8c837_7a9900ea248a4ee1b9f7bee44bbebd19.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_off00006a51.bin
cf3674228f1a22ba472a276b64970ef0e062c7b593a4d232649f270cb78f0618		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A51 5008 bytes
font_01_sfnt_off00007b59.bin
59ef2015dabf0066c58e6204540f2623c6ff770382b4720c40b65ac21b3bc05b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B59 10156 bytes
font_02_sfnt_off00009dde.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9DDE 4324 bytes

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