Malicious PDF — malware analysis report

Static analysis result for SHA-256 94134ef56813e455…

MALICIOUS

PDF

46.3 KB Created: 2020-07-28 05:43:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: aa02120a34ca316cbcc8538c624255fe SHA-1: b800226714517f0685d4da8a3217fd4cc8b55dbd SHA-256: 94134ef56813e4554721337390c9311896b9f68bf95a8e74871d90cab22aa30f
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, forming a link farm. One of these links, 'https://ttraff.com/pify?keyword=grevillea+moonlight+fact+sheet', is identified as a malicious redirector. This suggests the document is designed to drive traffic to malicious infrastructure, likely for further exploitation or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=grevillea+moonlight+fact+sheet
    • http://files.northofleadership.com/uploads/1/3/1/4/131437889/0f32fd300707a.pdf
    • http://files.chrisheidt.net/uploads/1/3/1/4/131437322/roretomisibe-defejen-raxamugewif-rexubatuven.pdf
    • http://files.windsweptgoods.com/uploads/1/3/0/9/130968926/mowinubavaket.pdf
    • http://files.no
    • https://cdn.shopify.com/s/files/1/0431/5525/9560/files/titika.pdf
    • https://cdn.shopify.com/s/files/1/0432/2767/6829/files/mobenukineruwenizibak.pdf
    • https://cdn.shopify.com/s/files/1/0431/1141/5962/files/57414912239.pdf
    • https://cdn.shopify.com/s/files/1/0436/8711/6965/files/20892364084.pdf
    • https://cdn.shopify.com/s/files/1/0433/2689/8344/files/funafuruvuledigowurem.pdf
    • https://cdn.shopify.com/s/files/1/0429/5688/2086/files/4386882577.pdf
    • https://cdn.shopify.com/s/files/1/0435/1908/2651/files/91661156164.pdf
    • https://cdn.shopify.com/s/files/1/0432/4923/8178/files/86761982307.pdf
    • https://cdn.shopify.com/s/files/1/0434/9073/8328/files/gatefowuxar.pdf
    • https://cdn.shopify.com/s/files/1/0429/8542/2997/files/serufexibi.pdf
    • https://cdn.shopify.com/s/files/1/0433/4741/1096/files/korakazugufonesamoposejo.pdf
    • https://cdn.shopify.com/s/files/1/0436/1699/3440/files/17649593087.pdf
    • https://cdn.shopify.com/s/files/1/0432/2990/5058/files/28595837558.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_off0000786e.bin
3b6595582cd921341163e4fd4bc87e1065a41e7a47b15d4be9fba685000ba3db		 pdf-font-stream PDF embedded font (sfnt) at offset 0x786E 5176 bytes
font_01_sfnt_off000089de.bin
181d01ac64fc2f83110c98449562c289dbf86f12e9619201e958bff99ab25252		 pdf-font-stream PDF embedded font (sfnt) at offset 0x89DE 10076 bytes

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