Malicious PDF — malware analysis report

Static analysis result for SHA-256 382249b627da384f…

MALICIOUS

PDF

33.4 KB Created: 2020-08-29 12:32:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6c795c5f4e8138d1a33d278b2b70f1ee SHA-1: 3f429ff2f56887a84b59cc9f2b6791bcecb39b7c SHA-256: 382249b627da384f3af9cc5ccee349f5f153bbc82ef1653db13a8a7eccf53406
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 pointing to PDF documents hosted on Shopify, indicating a link farm. One of the primary links, 'https://ttraff.ru/wix?keyword=www+enrollcc+com', is flagged as a malicious redirector. This suggests the document is part of a scheme to either manipulate SEO or distribute malicious content through a chain of redirects.

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.ru/wix?keyword=www+enrollcc+com
    • https://cdn.shopify.com/s/files/1/0435/4270/8378/files/86303381771.pdf
    • https://cdn.shopify.com/s/files/1/0443/9552/8358/files/kitchen_design_brochure.pdf
    • https://cdn.shopify.com/s/files/1/0438/9168/7579/files/key_informant_interview_questions_community_assessment.pdf
    • https://cdn.shopify.com/s/files/1/0437/2309/6216/files/cardiopatias_congenitas_acianogenas.pdf
    • https://cdn.shopify.com/s/files/1/0431/5381/7749/files/keduvogagogulelewakijaw.pdf
    • https://cdn.shopify.com/s/files/1/0432/1899/3320/files/zevokojusowenemo.pdf
    • https://cdn.shopify.com/s/files/1/0427/4431/6070/files/77594969425.pdf
    • https://cdn.shopify.com/s/files/1/0440/4248/5910/files/noun_phrase_in_english_grammar.pdf
    • https://cdn.shopify.com/s/files/1/0434/6901/3144/files/udp_tracker._trackerfix._com_80_announce.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/banefidofekadozimodomi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/23158701460.pdf
    • https://cdn.shopify.com/s/files/1/0428/3095/4655/files/7zip_command_line.pdf
    • https://cdn.shopify.com/s/files/1/0430/3486/9909/files/dolizifubokav.pdf
    • https://cdn.shopify.com/s/files/1/0427/6230/5702/files/93534961307.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_off000046c9.bin
6e4515040c6686682209cd6c2778c1adcd4ef8cae569af943a1c84cdfbc4f2a8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x46C9 4660 bytes
font_01_sfnt_off000056a3.bin
fffd1221d7d16078891e2caa40d274618ff32b98c25a2ccd2851a9b9ab067664		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56A3 10060 bytes

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