Malicious PDF — malware analysis report

Static analysis result for SHA-256 4515ce6518d09068…

MALICIOUS

PDF

38.5 KB Created: 2020-07-29 09:54:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8f36d6aa1b1414d509637d5321f40be4 SHA-1: 072c5ebf8989f8f533da5ff7ac914da8a14af460 SHA-256: 4515ce6518d09068ed2517d158e6a5a8628879405f4d30e9809ace2923e447f6
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

The PDF contains multiple embedded links, with one pointing to a known malicious redirector (ttraff.com). It also exhibits characteristics of a link farm, hosting numerous PDFs on Shopify domains. The document body, though heavily obfuscated, contains keywords related to the linked URL, suggesting a lure to a malicious site for potential phishing or scam purposes. No scripts were extracted, limiting the analysis of direct payload execution.

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=formica+basalt+slate+honed+vs+matte
    • http://files.spiritcreekfarm.com/uploads/1/3/1/4/131453144/464695.pdf
    • http://files.tinablanck.com/uploads/1/3/1/4/131407423/90778.pdf
    • http://files.plainbird.org/uploads/1/3/1/0/131069887/4f78ad3cf.pdf
    • http://files.jjewelsstudio.com/uploads/1/3/0/7/130776567/sifil.pdf
    • https://cdn.shopify.com/s/files/1/0427/7328/2983/files/mazolefovavozizuvizide.pdf
    • https://cdn.shopify.com/s/files/1/0439/3756/2779/files/demoboxarazuzeredugufo.pdf
    • https://cdn.shopify.com/s/files/1/0432/0398/5570/files/64021321326.pdf
    • https://cdn.shopify.com/s/files/1/0435/1649/3976/files/23058192354.pdf
    • https://cdn.shopify.com/s/files/1/0429/8863/4263/files/78186720728.pdf
    • https://cdn.shopify.com/s/files/1/0431/7695/1965/files/39919522933.pdf
    • https://cdn.shopify.com/s/files/1/0431/9100/9442/files/xawekuxexu.pdf
    • https://cdn.shopify.com/s/files/1/0432/6844/0224/files/vogimasuwovepudujebamuk.pdf
    • https://cdn.shopify.com/s/files/1/0431/4054/6721/files/26623623473.pdf
    • https://cdn.shopify.com/s/files/1/0430/5793/8581/files/metage.pdf
    • https://cdn.shopify.com/s/files/1/0428/2961/1171/files/34340443973.pdf
    • https://cdn.shopify.com/s/files/1/0427/8360/4903/files/ketopugekarufilurenekop.pdf
    • https://cdn.shopify.com/s/files/1/0427/6197/8023/files/82562500074.pdf
    • https://cdn.shopify.com/s/files/1/0434/9224/5656/files/budez.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_off000058a7.bin
0ac2e4f0899fafbd341bd4385e21f3e65f4c038c59f1967584bfa8055065670f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58A7 5124 bytes
font_01_sfnt_off000069e0.bin
8476e82df4c6dab3a77be985248e8f5a3ab5a3e9c064b5ccff0f5306777d6751		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69E0 9752 bytes

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