Malicious PDF — malware analysis report

Static analysis result for SHA-256 df607951a0e774c3…

MALICIOUS

PDF

41.4 KB Created: 2020-09-28 17:32:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0184d2d2149fc49e4b7a81e8d400d486 SHA-1: d79496bf8250185cc826fd44e798ccb8dfea92ff SHA-256: df607951a0e774c3a8635e4e25340238904a5a50d40e6ace22428dc5c0d08720
128 Risk Score

Malware Insights

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

The PDF file contains a mass of external links, masquerading as a business template. One of these links, https://gettraff.ru/mozel?keyword=business+canvas+model+template+pdf, points to known malicious redirector infrastructure. The heuristic firings indicate this is a malicious redirector and a link farm, suggesting the document's primary purpose is to redirect users to malicious sites. No scripts were extracted from this sample.

Heuristics 4

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://gettraff.ru/mozel?keyword=business+canvas+model+template+pdf
    • http://files.zenwich.com/uploads/1/3/1/3/131381332/lugesezurefes.pdf
    • http://supiwon.the-nature-atelier.com/uploads/1/3/2/6/132682974/takotobabi.pdf
    • http://files.americasyouthsports.com/uploads/1/3/2/8/132814476/897202.pdf
    • http://numapafet.oakridgeartcenter.org/uploads/1/3/1/6/131637896/wupilul.pdf
    • http://xarutoz.adrianobarra.com/uploads/1/3/1/3/131379371/lunakipemi-gomupoj.pdf
    • https://site-1037233.mozfiles.com/files/1037233/sinudatokasuxo.pdf
    • https://site-1036798.mozfiles.com/files/1036798/34421276325.pdf
    • https://cdn.shopify.com/s/files/1/0432/9966/8121/files/performance_appraisal_phrase_book.pdf
    • https://cdn.shopify.com/s/files/1/0434/2241/7047/files/41802363951.pdf
    • https://cdn.shopify.com/s/files/1/0428/4507/7660/files/kuzuvisok.pdf
    • https://6aa3165b-f62c-400d-8efc-9d842fd04752.filesusr.com/ugd/82d61e_f9146379e55748758853a19587a900e9.pdf?index=true
    • https://cbe8270d-f32f-49bd-8c08-3db2639a0208.filesusr.com/ugd/eb2f7d_faf93fcfb9b04d06a05ac0c406134b49.pdf?index=true
    • 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_off000064ee.bin
86f7977c2e95ca08dc7bf49f74beb63fe62ffd34d2dcb6e84f701df7a54d8466		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64EE 5312 bytes
font_01_sfnt_off00007700.bin
7c64636323cba5ee8e1aafb9aab976ae2c84624ec7053bed5b3a8e97e2d6d9a8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7700 9972 bytes

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