Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1563d17f973cff9…

MALICIOUS

PDF

37.1 KB Created: 2020-08-21 10:54:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ac5189672ec82b4d57d4e9a5014d6f74 SHA-1: 65117e6941c694e508c9d666da489fb6e76c874f SHA-256: d1563d17f973cff9cd9de6c79cc6f981749d4df74ceb29768e26fa48edb9a488
150 Risk Score

Malware Insights

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

The PDF contains a link farm designed for SEO manipulation, with one critical link redirecting to malicious infrastructure at 'ttraff.cc'. The document body, though heavily obfuscated, appears to contain the same product lure as the malicious URL. The presence of numerous benign-looking Shopify links suggests an attempt to blend malicious activity with legitimate content. 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.cc/pify?keyword=tissot+prc+200+quartz+manual
    • http://tumaru.neverwares.ca/uploads/1/3/0/7/130776688/patev.pdf
    • https://cdn.shopify.com/s/files/1/0431/6132/1634/files/viputezarud.pdf
    • https://cdn.shopify.com/s/files/1/0432/5244/9444/files/zogoxusoduv.pdf
    • https://cdn.shopify.com/s/files/1/0429/7133/2767/files/vitexa.pdf
    • https://cdn.shopify.com/s/files/1/0427/9474/6023/files/1289397367.pdf
    • https://cdn.shopify.com/s/files/1/0431/3802/3592/files/kegapozamudevujomulo.pdf
    • https://cdn.shopify.com/s/files/1/0431/7318/3643/files/cancer_de_mama_en_mexico.pdf
    • https://cdn.shopify.com/s/files/1/0440/6539/0757/files/40478075416.pdf
    • https://cdn.shopify.com/s/files/1/0437/8427/4081/files/kusodekadeguzojoriwibam.pdf
    • https://cdn.shopify.com/s/files/1/0439/2943/6315/files/95606115181.pdf
    • https://cdn.shopify.com/s/files/1/0432/6532/7262/files/zumopanujikep.pdf
    • https://cdn.shopify.com/s/files/1/0437/6264/7189/files/98938402984.pdf
    • https://cdn.shopify.com/s/files/1/0432/5359/6310/files/angular_form_input_textarea.pdf
    • https://cdn.shopify.com/s/files/1/0434/1055/5041/files/andhra_university_cse_syllabus.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_off00005330.bin
7c1c033b0b9d0269cd89ffd8deebeb7d6cc9eeccc929e3a36567b08445e7805a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5330 5476 bytes
font_01_sfnt_off000065c3.bin
d8ec66484e5924cdca785068f8773fda4e91fb503b827610d03af122495e29c2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65C3 9884 bytes

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