Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb994a365e45b64a…

MALICIOUS

PDF

39.8 KB Created: 2020-08-31 03:33:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 92cc6df7affb9a8f1a707962c9f8878b SHA-1: 37774aaba97ecb0e11d8e0bfdcb8a60b2a1e1b1f SHA-256: eb994a365e45b64a606cc9467442ad4ae0c73db9daa939b4f5a38ce23330276e
120 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, with a critical heuristic firing indicating a link farm. One of the primary links directs to a known malicious redirector at 'ttraff.com'. While many other links point to benign Shopify domains, the presence of the malicious redirector and the sheer volume of links suggest an attempt to lure users to malicious content, likely for SEO spam or phishing purposes.

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/wix?keyword=projet+d%2527+am%25C3%25A9lioration+bac+pro+arcu
    • https://cdn.shopify.com/s/files/1/0440/6237/6088/files/best_android_ebook_reader_app.pdf
    • https://cdn.shopify.com/s/files/1/0431/8609/4248/files/59391572603.pdf
    • https://cdn.shopify.com/s/files/1/0453/6093/9163/files/ec_certificate_of_conformity_meaning.pdf
    • https://static.usrfiles.com/ugd/3eed2b_c901d09a966a4f7aa14b7fcccfe62942.pdf
    • https://static.usrfiles.com/ugd/2f3ac6_4fecaaf5105d406ba678e2cd4c46a166.pdf
    • https://static.usrfiles.com/ugd/b8c837_bd304fa80b284c0da156ffa63fbaaa78.pdf
    • https://cdn.shopify.com/s/files/1/0436/0817/8850/files/basic_electrical_engineering_important_questions.pdf
    • https://cdn.shopify.com/s/files/1/0432/1745/3211/files/55901498292.pdf
    • https://cdn.shopify.com/s/files/1/0447/4611/3173/files/analysis_of_variance_anova.pdf
    • https://cdn.shopify.com/s/files/1/0429/5386/7427/files/pexulusefofep.pdf
    • https://static.usrfiles.com/ugd/b8c837_2bb1a4cef80c490d9b7138e7d24b7a8e.pdf
    • https://static.usrfiles.com/ugd/7d1dc9_a376b8b82fb6430a90b499ade36230ff.pdf
    • https://static.usrfiles.com/ugd/d9d1f5_c2e6668b6add496d96b6d5207078fab8.pdf
    • https://static.usrfiles.com/ugd/b8c837_0d92b88587ee450aaaa20a7ded358862.pdf
    • https://static.usrfiles.com/ugd/b8c837_92636154c2234b04bc6406555cb7d128.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_off0000593c.bin
826c1f5118288c33587d62b08ba79ccd9b31f7af0d9c764a8502e5e550dbea0a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x593C 5432 bytes
font_01_sfnt_off00006b5b.bin
461dc74a49f12b215378050d202c181edd3995f997f141d84b0e612f2db638e7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B5B 11500 bytes

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