Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5e58e4f30761f47…

MALICIOUS

PDF

40.9 KB Created: 2020-08-21 07:57:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9fd8f8c10886bd0427457f7652a8dc33 SHA-1: 20463e641f6ab0d4e3ab272e2b39dc4ee211640b SHA-256: b5e58e4f30761f47578a4bf4a0a05c7e3dd22dc7d42d5971e326715e3dc762a4
150 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, disguised as an Excel template. This redirector likely leads to further malicious content or exploits. The document also contains a large number of links to PDFs hosted on Shopify, which is characteristic of SEO link farm abuse to improve search engine ranking for malicious content. No scripts were extracted, but the primary attack vector is the malicious link embedded within the document.

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=normal+distribution+graph+excel+template
    • http://files.cowboygearbyhayroot.com/uploads/1/3/1/3/131398097/9203681.pdf
    • http://files.kelseyskeys.com/uploads/1/3/0/7/130738657/futifi_mobanadawaf.pdf
    • http://files.marylanddressage.org/uploads/1/3/1/0/131070089/futasejuz_pujotuzusabop.pdf
    • https://cdn.shopify.com/s/files/1/0436/9140/9562/files/39727141892.pdf
    • https://cdn.shopify.com/s/files/1/0433/1424/9886/files/fesuninevemexelu.pdf
    • https://cdn.shopify.com/s/files/1/0430/0311/7721/files/18489949753.pdf
    • https://cdn.shopify.com/s/files/1/0438/3614/5814/files/75227345448.pdf
    • https://cdn.shopify.com/s/files/1/0437/2873/2314/files/47567604280.pdf
    • https://cdn.shopify.com/s/files/1/0429/1746/2182/files/wodomewezukofego.pdf
    • https://cdn.shopify.com/s/files/1/0438/0635/9714/files/zazuzebazif.pdf
    • https://cdn.shopify.com/s/files/1/0431/4241/4493/files/pnb_housing_finance_fd_15g_form.pdf
    • https://cdn.shopify.com/s/files/1/0429/3656/5923/files/69982319041.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_off0000616a.bin
34cd41b94e2e2500b420dcbec39adf8bfa26326db27279f8cda4ab6932468073		 pdf-font-stream PDF embedded font (sfnt) at offset 0x616A 5664 bytes
font_01_sfnt_off0000747d.bin
494f6f93d365f47d8bf3d7c4602e3b8eb6fe3c4049c454ef6bae6f7048338ea9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x747D 10016 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.