Malicious PDF — malware analysis report

Static analysis result for SHA-256 f4a62f605ef6d0e9…

MALICIOUS

PDF

44.8 KB Created: 2020-08-03 16:37:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b35c5539c7faba02d830990c1a63a08b SHA-1: 7e97566558eeceba47e4c31a1d6c171aae60ff2f SHA-256: f4a62f605ef6d0e91afdfbb307a5ca4625f96c623062b6b97ae1e5b9a9b96b2a
150 Risk Score

Malware Insights

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

This PDF file contains numerous links, many pointing to Shopify domains, but one critical link redirects to a known malicious domain (ttraff.com). The ML classifier strongly flagged this PDF as malicious. The primary attack pattern involves luring the user to click the ttraff.com link, which likely leads to further malicious content or exploits.

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.com/pify?keyword=a+political+economy+of+the+middle+east+third+edition+pdf
    • http://files.urbanmilan.com/uploads/1/3/1/0/131070520/4210231.pdf
    • http://files.sarahdupeyron.com/uploads/1/3/0/9/130969700/e901940a0f.pdf
    • http://files.peterpax.com/uploads/1/3/1/3/131384401/7c38b0ecfe03e3.pdf
    • http://files.pelabarba.com/uploads/1/3/1/6/131606133/410636.pdf
    • http://files.andremarquetti.com/uploads/1/3/0/7/130740018/botubuxupij-kewij-sawema.pdf
    • https://cdn.shopify.com/s/files/1/0437/0549/9803/files/40165601187.pdf
    • https://cdn.shopify.com/s/files/1/0436/0005/2387/files/bomeme.pdf
    • https://cdn.shopify.com/s/files/1/0427/5775/0951/files/mijotemopenavofisojediv.pdf
    • https://cdn.shopify.com/s/files/1/0440/6290/0374/files/ak_47_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/7631/2471/files/jitivelupuvegapaxi.pdf
    • https://cdn.shopify.com/s/files/1/0438/1379/8050/files/42588719985.pdf
    • https://cdn.shopify.com/s/files/1/0433/8978/0124/files/28837959697.pdf
    • https://cdn.shopify.com/s/files/1/0433/2797/9678/files/maripelibavakejalu.pdf
    • https://cdn.shopify.com/s/files/1/0437/7490/2430/files/vekibajexibi.pdf
    • https://cdn.shopify.com/s/files/1/0428/6296/8991/files/fudeda.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/voriwatovetizejewadodo.pdf
    • https://cdn.shopify.com/s/files/1/0434/6108/3301/files/47587305628.pdf
    • https://cdn.shopify.com/s/files/1/0428/2449/9367/files/36346911139.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006c93.bin
fc2ce3b11522d50b964ca9224c191a44f9883a238f94075ccee50460d984a94b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C93 5484 bytes
font_01_sfnt_off00007f20.bin
891fdd047c4e58fc9cfeb4e936932e0cf56c8163e1f0c5ee60e4acb6c54acb31		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F20 10736 bytes

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