Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1a477e1d3e5cc96…

MALICIOUS

PDF

33.2 KB Created: 2020-08-19 18:15:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3efded2737303458d7ece5c22f5ed105 SHA-1: 5daff22a5fe505520cbbb72240d599bcf3950fca SHA-256: d1a477e1d3e5cc96bfd6050a54708f56548a6b7a8023d846e10edf84299db667
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one specifically pointing to a known malicious redirector. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms this, and 'PDF_SEO_LINK_FARM' indicates a large number of external links, many hosted on Shopify. The primary malicious URL is https://ttraff.com/pify?keyword=large+format+cameras+uk, which is likely used to lure victims into a phishing or malware distribution scheme. No scripts were extracted, and the document body was unreadable, but the link farm and redirector are strong indicators of malicious intent.

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=large+format+cameras+uk
    • http://tolimeko.segrosspto.org/uploads/1/3/2/6/132682124/mulowe.pdf
    • http://files.itsleonardlim.com/uploads/1/3/0/8/130813985/9600384.pdf
    • https://cdn.shopify.com/s/files/1/0432/1745/3211/files/bameterewojozasil.pdf
    • https://cdn.shopify.com/s/files/1/0431/5060/6496/files/tuzozomudirusitebugaze.pdf
    • https://cdn.shopify.com/s/files/1/0431/9281/1681/files/blood_red_skies_scenarios.pdf
    • https://cdn.shopify.com/s/files/1/0438/3136/1686/files/how_to_draw_a_3d_cube.pdf
    • https://cdn.shopify.com/s/files/1/0431/1089/1680/files/wojesikijiji.pdf
    • https://cdn.shopify.com/s/files/1/0429/9200/9365/files/vowaxemiwamafowozitoza.pdf
    • https://cdn.shopify.com/s/files/1/0435/9494/0573/files/68922861834.pdf
    • https://cdn.shopify.com/s/files/1/0432/2174/5822/files/74791007516.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kilezibuvi.pdf
    • https://cdn.shopify.com/s/files/1/0428/1283/3959/files/fugodekotawerovegetojot.pdf
    • https://cdn.shopify.com/s/files/1/0437/8948/4190/files/windows_95_img.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_off00004620.bin
d2e3167f428cb093542e9475d71ce9345040a43618de2dfe8dd2f56b067739c1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4620 5176 bytes
font_01_sfnt_off000057ae.bin
f6bfab67f5a68e2fd42ccb89937b7e43c51c1a4ab77670c73a30feff99ae5a25		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57AE 9636 bytes

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