Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ad7d148d3297a47…

MALICIOUS

PDF

41.5 KB Created: 2020-08-13 18:59:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7db535faa9c6e0ee47f01034a46c0e41 SHA-1: c3f28b68a97471c9e7ebb98e955f09220e044555 SHA-256: 8ad7d148d3297a4738da696094dd399693d91e2224c62918d6afe57b27d913b0
120 Risk Score

Malware Insights

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

The PDF file contains a link disguised as a 'goal setting worksheet for work' which redirects to a known malicious URL (ttraff.com). The PDF also contains a large number of external links, many of which point to Shopify domains, suggesting a link farm or SEO manipulation tactic to host malicious content. The primary malicious link is https://ttraff.com/wb?keyword=goal%20setting%20worksheet%20for%20work.

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/wb?keyword=goal%20setting%20worksheet%20for%20work
    • http://files.counsellingpsychologist.services/uploads/1/3/0/9/130969555/7582248.pdf
    • http://zimebagow.earthwisdominstitute.org/uploads/1/3/2/8/132816202/f1c9bbfd70.pdf
    • http://peluwaz.steamsupply.com/uploads/1/3/1/1/131164250/6345447.pdf
    • https://cdn.shopify.com/s/files/1/0435/2458/7674/files/50155302802.pdf
    • https://cdn.shopify.com/s/files/1/0429/6258/3711/files/mapavabafumagubodara.pdf
    • https://cdn.shopify.com/s/files/1/0433/5101/5577/files/61666337454.pdf
    • https://cdn.shopify.com/s/files/1/0430/0141/3785/files/request_leave_form.pdf
    • https://cdn.shopify.com/s/files/1/0431/0564/8791/files/beauty_and_the_beast_junior_script.pdf
    • https://cdn.shopify.com/s/files/1/0434/4968/0028/files/vosed.pdf
    • https://cdn.shopify.com/s/files/1/0427/6020/8540/files/stihl_fs45_parts_diagram_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/8292/3676/files/77679415836.pdf
    • https://cdn.shopify.com/s/files/1/0431/7885/2507/files/fezaxijegovegixolujoxoki.pdf
    • https://cdn.shopify.com/s/files/1/0430/4237/3785/files/nodunarapilogumoliwiv.pdf
    • https://cdn.shopify.com/s/files/1/0432/3305/0779/files/lasso_in_r.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_off000062c1.bin
b3c2753c14806e0b917f41e7c344baffe9a86ffb5adcc930c656d6aff9570053		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62C1 5216 bytes
font_01_sfnt_off00007492.bin
573c4ac4f78d73787e513a48dca31c9baae0fa8397253685175a9f151775ea22		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7492 10316 bytes

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