Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ab5948731e8342e…

MALICIOUS

PDF

43.5 KB Created: 2020-09-22 17:25:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 819cef5182e4aa3cff036455233826ee SHA-1: bf3bd370a53248223725269393eb5e6b62f71d1e SHA-256: 7ab5948731e8342e819bf6bff03f0ebf4d8cbc77ae21dd52f7828bf1ce508ff7
120 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a link farm, with numerous embedded URLs pointing to external resources. One critical heuristic identified a link to known malicious redirector infrastructure, specifically 'ttraff.club'. The document body, though heavily obfuscated, contains references to these URLs, suggesting an intent to lure users to potentially harmful sites. No scripts were extracted, limiting the analysis of direct payload execution.

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.club/wix?keyword=computer+glitch+crossword+clue
    • http://jonurip.jamesdaviespoetry.com/uploads/1/3/1/8/131856491/2022572.pdf
    • http://files.bridgetgelms.com/uploads/1/3/1/4/131453194/8922951.pdf
    • http://files.cavershamholistics.co.uk/uploads/1/3/1/0/131070774/labifenejoseravajij.pdf
    • http://gawit.pjmgoats.com/uploads/1/3/1/6/131606003/nikolutokoraj.pdf
    • http://files.smithlab.ca/uploads/1/3/1/6/131607010/c866c0d6.pdf
    • http://musuxewak.rwang.people.ua.edu/uploads/1/3/2/3/132303108/denajuv.pdf
    • https://3ca518aa-c34d-48f2-8b49-9b5a5ec14c55.filesusr.com/ugd/23b571_72cbb59aee744359a808116c0a2bba5b.pdf?index=true
    • https://1f153d38-5cd5-42c5-91c5-a9e061c4b84f.filesusr.com/ugd/ceb2e8_9975e90d9890447088251001951f68c9.pdf?index=true
    • https://bb77d979-08a3-479c-833f-d871f7860265.filesusr.com/ugd/ffe0d3_9d635b48295349f8a4d265210fc75791.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0437/3427/0101/files/colorado_dmv_online_accident_report.pdf
    • https://cdn.shopify.com/s/files/1/0430/5852/8405/files/28566870597.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_off00006d2c.bin
bcbf45254db83b22bf31a749710ece5f4961926d4cb585c76a6437602a694254		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D2C 5272 bytes
font_01_sfnt_off00007f00.bin
9767911b7d7473ec94f73d6ceaa9f16653e492ad1a3cd9208b2305dc65d02ed1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F00 10144 bytes

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