Malicious PDF — malware analysis report

Static analysis result for SHA-256 31b22eaf7f743994…

MALICIOUS

PDF

47.7 KB Created: 2020-08-17 02:39:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 54c039303cd5e153996843cbf50da1b4 SHA-1: 9f67acd8eef290533972a5e3415fbe42e01f4c5c SHA-256: 31b22eaf7f74399474459a274c507952858a1fe2c5feb4478296a0ddec1ee951
128 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, which is designed to lead users to malicious content. The document also includes a large number of links to other PDFs hosted on Shopify, likely as part of an SEO link farm to improve search engine ranking for malicious content. The presence of urgency language further supports a phishing or scam attempt. No scripts were extracted, limiting the analysis of direct execution capabilities.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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.cc/pify?keyword=australian+syphilis+guidelines
    • http://files.fabricsdc.com/uploads/1/3/2/6/132681448/866e4607d2f2.pdf
    • https://cdn.shopify.com/s/files/1/0428/6873/6166/files/65519908616.pdf
    • https://cdn.shopify.com/s/files/1/0433/9941/3925/files/12422093238.pdf
    • https://cdn.shopify.com/s/files/1/0434/2035/2677/files/pokemon_reborn_item_guide.pdf
    • https://cdn.shopify.com/s/files/1/0435/3412/3160/files/zirojuzibiwofunuxazawed.pdf
    • https://cdn.shopify.com/s/files/1/0433/2912/6550/files/authority_to_sell_philippines.pdf
    • https://cdn.shopify.com/s/files/1/0431/5525/9560/files/39565039085.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/31995481059.pdf
    • https://cdn.shopify.com/s/files/1/0430/2631/7473/files/kobujam.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/1/0431/5525/9560/files/39565

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007da9.bin
5235c5fab71bc6825c1f79aae23404f81f9dbae0d91d6e82f9261a0e77c256c9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7DA9 5312 bytes
font_01_sfnt_off00008fae.bin
4346ca25af99ffecd730faadd70c5a52069ef1d5ff2ad9ffb833a1d0344b540f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8FAE 10188 bytes

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