Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb446084204ca3ed…

MALICIOUS

PDF

32.2 KB Created: 2020-08-26 15:43:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 597b6fea99b2033fc9a6b917f22b5676 SHA-1: 2a759b316b7ef856fd131942f0ba909657559e07 SHA-256: eb446084204ca3edb2884622496732d05a29689c82faeeb9453fd9dad7125daa
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm designed to redirect users to potentially malicious content. One of the primary links directs to a known malicious redirector, 'ttraff.me', which is further disguised with a keyword related to dog cages. The document body, though heavily obfuscated, contains the same redirector URL. The presence of numerous PDF links, many hosted on Shopify, suggests an attempt to obscure the malicious destination through a large number of seemingly benign or SEO-optimized links.

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.me/pify?keyword=kong+dog+cage
    • http://jodaxiw.impulsivelust.com/uploads/1/3/0/8/130814187/dereruna-gesemikevuwo-nevoz-vonomarono.pdf
    • http://files.sanfranciscorestaurantequipment.com/uploads/1/3/2/6/132680827/mejesosatininu-gekowewi-zofekewukaxeg.pdf
    • http://zumonirew.impactcommunications.org/uploads/1/3/1/6/131606255/17e03.pdf
    • http://zeluwuz.fbchiddenite.org/uploads/1/3/2/8/132814342/1446da14b2.pdf
    • https://cdn.shopify.com/s/files/1/0429/8106/4853/files/ford_service_manual.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/37872338034.pdf
    • https://cdn.shopify.com/s/files/1/0433/4678/8501/files/world_continents_and_oceans_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0427/7318/4678/files/zuserotebu.pdf
    • https://cdn.shopify.com/s/files/1/0431/6646/6202/files/vabolumusoxa.pdf
    • https://cdn.shopify.com/s/files/1/0433/4754/2175/files/kawana.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32878299647.pdf
    • https://cdn.shopify.com/s/files/1/0437/6428/5598/files/68891620175.pdf
    • https://cdn.shopify.com/s/files/1/0459/6996/5216/files/mobile_movies_mp4_mania.pdf
    • https://cdn.shopify.com/s/files/1/0431/0319/1193/files/54059207488.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_off00004399.bin
53510533c716682669e05cf718181d446ba1192e4a7f07fb6352f2cf358ea92b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4399 4772 bytes
font_01_sfnt_off000053e9.bin
575066bffc4fb7f642465d1e39fd59fa1a8786ec680c65bfc1af86948d9c2f3a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53E9 9688 bytes

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