Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea1e9819918899e8…

MALICIOUS

PDF

43.9 KB Created: 2020-08-23 06:42:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 80718cd09b62faa92283cdace8667c5d SHA-1: f7d99e344fbfb58813c186e4bbfee35bfa8490ef SHA-256: ea1e9819918899e8307aecc303bbcde87804a59f8584076a29563262d4f82082
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-in T1059.001 PowerShell

The PDF file contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm for SEO manipulation. One critical heuristic firing indicates a direct link to a known malicious redirector at 'ttraff.com'. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=offshore+fishing+report+florida+keys', which is likely intended to lure users to malicious content. No scripts were extracted from this sample.

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=offshore+fishing+report+florida+keys
    • http://files.healingpartnerstt.com/uploads/1/3/1/0/131070161/jugiwipunigekogago.pdf
    • https://cdn.shopify.com/s/files/1/0440/5005/5318/files/pibewomodapudefejafo.pdf
    • https://cdn.shopify.com/s/files/1/0435/4070/9527/files/the_notebook_movie_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/7622/3129/files/nirinewajibel.pdf
    • https://cdn.shopify.com/s/files/1/0429/9292/6873/files/climbing_rose_planting_guide.pdf
    • https://cdn.shopify.com/s/files/1/0431/4071/0566/files/73826619403.pdf
    • https://cdn.shopify.com/s/files/1/0437/2430/8630/files/liguzofagasuw.pdf
    • https://cdn.shopify.com/s/files/1/0432/5045/0600/files/household_gold_book.pdf
    • https://cdn.shopify.com/s/files/1/0432/5317/0339/files/career_education_definition.pdf
    • https://cdn.shopify.com/s/files/1/0435/6125/5073/files/sovum.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000610d.bin
3b6c3edccbbdf68622c80e44ac099bd4bffa00507f4f1bc839f0bdbf087aa810		 pdf-font-stream PDF embedded font (sfnt) at offset 0x610D 3080 bytes
font_01_sfnt_off00006c17.bin
758102d6a8e53aaa08178a64d086f2a6aa4f3a8259ac9b5de83fa876527fe36e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C17 5496 bytes
font_02_sfnt_off00007ebe.bin
b9d44f6d335c65c5dbc0af2a982dafb29ac9a337cf42be4b6063fee7c8d66101		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7EBE 10400 bytes

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