Malicious PDF — malware analysis report

Static analysis result for SHA-256 f147b4008f40bfe7…

MALICIOUS

PDF

42.0 KB Created: 2020-08-29 20:37:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 90c30ea86ffa73f983b06c02821044d8 SHA-1: b15ff1f01ba6648c66e0245f631744b375796401 SHA-256: f147b4008f40bfe7b8e30d90b80b5fbc17d5d2cfc71eca8cdb639317b6b63d9b
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external PDF documents. One of the primary links, 'https://ttraff.cc/wix?keyword=buteyko+breathing+mouth+taping', is identified as a malicious redirector. This suggests the document is designed to lead users to malicious infrastructure, likely for further exploitation or phishing.

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.cc/wix?keyword=buteyko+breathing+mouth+taping
    • https://static.usrfiles.com/ugd/b8c837_3df649c4ffdc4755ad0877157f347219.pdf
    • https://static.usrfiles.com/ugd/b8c837_4c8d9e87ee584bd994147cb4599f4767.pdf
    • https://static.usrfiles.com/ugd/b8c837_3cb6d3801ee648fc8c15dcc349300ee8.pdf
    • https://static.usrfiles.com/ugd/b8c837_15cea92a4bb34e3a98d6ba609bb3be10.pdf
    • https://static.usrfiles.com/ugd/912de2_1e2c07667fe4410f958c700b11954c0e.pdf
    • https://static.usrfiles.com/ugd/b8c837_f3c26bda3a9f45ebb792a34ea9b5276b.pdf
    • https://cdn.shopify.com/s/files/1/0440/5588/8022/files/75353769948.pdf
    • https://cdn.shopify.com/s/files/1/0440/5913/2054/files/as_aware_se.pdf
    • https://cdn.shopify.com/s/files/1/0440/1194/6134/files/pajefunuvarukupep.pdf
    • https://cdn.shopify.com/s/files/1/0435/6043/5873/files/business_email_example_formal.pdf
    • https://cdn.shopify.com/s/files/1/0432/4841/8973/files/xafunafijoxon.pdf
    • https://cdn.shopify.com/s/files/1/0439/5125/9803/files/canon_in_d_piano_score.pdf
    • https://cdn.shopify.com/s/files/1/0431/2619/4333/files/79299682698.pdf
    • https://cdn.shopify.com/s/files/1/0434/7419/0498/files/63845016604.pdf
    • https://cdn.shopify.com/s/files/1/0430/4178/3959/files/mulubibijivido.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_off00006398.bin
5d5216db58c6a6b676365ac1866d9b2a5906b702f2a719514e87a65b8b3442f8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6398 5376 bytes
font_01_sfnt_off000075c7.bin
f8ba7433ab2fd871ad953437e1e1202ef1310d4e5212562db3d41d19c91e252d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75C7 11064 bytes

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