Malicious PDF — malware analysis report

Static analysis result for SHA-256 42094d76be680842…

MALICIOUS

PDF

51.1 KB Created: 2020-07-30 13:14:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 700a81a4ef408aa86e3e4d0cf5a52eb1 SHA-1: e20029453564037586c6bc82ef10ae17719c78dd SHA-256: 42094d76be680842a9d5e5d61193621191b470432b5472ce2c4d6f477af233f1
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The embedded URL 'https://ttraff.com/pify?keyword=agro+ecological+zones+of+sri+lanka+pdf' is designed to lure users into clicking, likely leading to further malicious content or downloads. Another heuristic identified a link farm structure, with many links pointing to Shopify domains, one of which is 'https://cdn.shopify.com/s/files/1/0428/7922/1927/files/62074834564.pdf'. No scripts were extracted, but the PDF structure and embedded links strongly suggest a phishing or redirection attack.

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=agro+ecological+zones+of+sri+lanka+pdf
    • http://files.northcountryprinting.com/uploads/1/3/2/6/132682167/2e0f40.pdf
    • http://files.annapicklesharvey.com/uploads/1/3/1/4/131438427/6022432.pdf
    • http://files.ollivlogs.com/uploads/1/3/1/3/131383456/7941483.pdf
    • http://files.josiahhunt.com/uploads/1/3/1/6/131606331/480423.pdf
    • https://cdn.shopify.com/s/files/1/0428/7922/1927/files/62074834564.pdf
    • https://cdn.shopify.com/s/files/1/0430/7304/4634/files/paxen.pdf
    • https://cdn.shopify.com/s/files/1/0440/7181/3285/files/96820090868.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/62222626122.pdf
    • https://cdn.shopify.com/s/files/1/0429/2935/6959/files/soveludefiru.pdf
    • https://cdn.shopify.com/s/files/1/0433/8299/7148/files/7962308425.pdf
    • https://cdn.shopify.com/s/files/1/0435/4975/3507/files/1190368081.pdf
    • https://cdn.shopify.com/s/files/1/0428/9665/4489/files/soteroriji.pdf
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/tuvoteruxebe.pdf
    • https://cdn.shopify.com/s/files/1/0434/0698/3335/files/zezabapefikuxevibuwexiz.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/
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008c13.bin
86273e569d67f9edb522dae152ef5fa2ea038d36c4264344bde7c3ff750b5f3c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8C13 5136 bytes
font_01_sfnt_off00009d9c.bin
c54cd4da2edb759d56c1e518618dd16602c5ff121e3f0dd140db667a6347ecec		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9D9C 10012 bytes

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