Malicious PDF — malware analysis report

Static analysis result for SHA-256 91332761db616f26…

MALICIOUS

PDF

94.8 KB Created: 2020-08-05 13:43:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6c56a61f875b094396ffef2f297c2477 SHA-1: 1adb385da1d7a76b11daa49fd0316cf12e10dd4a SHA-256: 91332761db616f2613a8bb968aec2e985292dabfb919d541d8940a6570c4b977
128 Risk Score

Malware Insights

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

The PDF contains a link farm and a malicious redirector link pointing to ttraff.com. The document body, though heavily obfuscated, contains the same URL as the redirector, suggesting the document's primary purpose is to trick users into visiting this malicious site. The presence of numerous benign Shopify links is likely a tactic to obscure the malicious redirector among legitimate-looking content.

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.com/pify?keyword=abnormal+psychology+an+integrative+approach+5th+canadian+edition+pdf
    • http://files.ladypatriotssoccer.com/uploads/1/3/1/8/131858592/wofuku-dapimililedite.pdf
    • http://files.monumentblog.com/uploads/1/3/2/6/132695517/bogupurawemit.pdf
    • http://files.harrybrookeweddings.org/uploads/1/3/0/8/130813768/wikupulevamudotuni.pdf
    • http://files.wrightrunningcoach.com/uploads/1/3/0/9/130969083/7446683.pdf
    • http://files.jmsupplyga.com/uploads/1/3/1/6/131637853/3808439.pdf
    • https://cdn.shopify.com/s/files/1/0429/0910/6335/files/62245695240.pdf
    • https://cdn.shopify.com/s/files/1/0434/4761/5649/files/77329626709.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/49181926903.pdf
    • https://cdn.shopify.com/s/files/1/0430/6511/4775/files/upcatet_bsc_agriculture_entrance_exam_model_question_papers.pdf
    • https://cdn.shopify.com/s/files/1/0432/5313/7576/files/87632559404.pdf
    • https://cdn.shopify.com/s/files/1/0430/9562/1796/files/rabukipasagarowumoxagixi.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sivuduveserekolagaxabulux.pdf
    • https://cdn.shopify.com/s/files/1/0433/6081/3208/files/data_mining_process_model.pdf
    • https://cdn.shopify.com/s/files/1/0440/8023/4661/files/aha_cpr_2020.pdf
    • https://cdn.shopify.com/s/files/1/0430/7720/6178/files/nesupeke.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_off00013205.bin
d6c54912ef1d86218160b29a47259ab1472644bf4305636cb3fbc20b90448aab
pdf-font-stream PDF embedded font (sfnt) at offset 0x13205 5984 bytes
font_01_sfnt_off00014645.bin
e4faed42d56ef3ea8c02184a6aa81d6d78dccb0ece96d0677c103ae3bd0e9537
pdf-font-stream PDF embedded font (sfnt) at offset 0x14645 10872 bytes