Malicious PDF — malware analysis report

Static analysis result for SHA-256 7bfc843adbf44e7e…

MALICIOUS

PDF

36.2 KB Created: 2020-08-21 22:09:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 79b471934c55879f73758064887d064b SHA-1: a3d1a5cad3bfb64a7a6250b0547096c84579ca88 SHA-256: 7bfc843adbf44e7e01bb9ba8797f0f848b2000a4681dcd52056b70cd7c603e0f
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 various PDF files, predominantly hosted on Shopify. One of these links, 'https://ttraff.com/pify?keyword=2011+buick+enclave+haynes+manual', is identified as a malicious redirector. This suggests a tactic of creating a link farm to potentially distribute malicious content or engage in SEO manipulation for malicious purposes.

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=2011+buick+enclave+haynes+manual
    • http://files.soulsai.studio/uploads/1/3/1/6/131606550/46d94.pdf
    • http://files.markspencercook.com/uploads/1/3/1/1/131164202/xaxawasipewavamo.pdf
    • http://najifizim.isawboston.org/uploads/1/3/1/3/131382133/loguwubapumedoj-mufasupiziw-bokovetabu.pdf
    • http://bamifoki.trvenorthreviews.com/uploads/1/3/1/1/131164312/xoritamezejafex.pdf
    • https://cdn.shopify.com/s/files/1/0439/2694/5947/files/minecraft_pe_0._15_0_apk.pdf
    • https://cdn.shopify.com/s/files/1/0432/0067/6003/files/wemubinuselegomosebavamus.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/20659662050.pdf
    • https://cdn.shopify.com/s/files/1/0429/1634/8057/files/contemporary_strategy_analysis_9th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0434/6370/4729/files/clinical_microbiology_and_infectious_diseases_john_spicer.pdf
    • https://cdn.shopify.com/s/files/1/0432/2911/8627/files/poulan_wild_thing_2375.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13908697451.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_off00004f1a.bin
514a6d03508a05b13037c89611f27fc6993406f99ff43706b49bec7e73f00f2f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4F1A 5540 bytes
font_01_sfnt_off000061d6.bin
195c6d6a11f2c224b8589a973ce8740d7f1c6c99fc7cdcc449544578bc574392		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61D6 10080 bytes

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