Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9b74476a11ff881…

MALICIOUS

PDF

42.2 KB Created: 2020-08-29 13:38:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7c039af9b4dcc8f95de37e2c4272056b SHA-1: c98f05a422d929ce0b57534b04da76610b0fd21c SHA-256: d9b74476a11ff88151930ae061ea859274d568983207f16e67593a51fd41dd33
120 Risk Score

Malware Insights

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

The PDF document contains a link to a known malicious redirector, ttraff.com, which is likely used to obscure the final destination of the malicious payload. The document also functions as a link farm, pointing to numerous other PDFs hosted on cdn.shopify.com, likely for SEO manipulation or to spread traffic. The presence of the malicious redirector URL and the link farm structure strongly suggests a phishing or scam attempt.

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/wix?keyword=magento+manual+install+extension
    • https://static.usrfiles.com/ugd/b8c837_832aecef188b4b538cd4dcace800634b.pdf
    • https://static.usrfiles.com/ugd/b8c837_2fa5e19c3e874ab1a8b08aba72e3ba99.pdf
    • https://static.usrfiles.com/ugd/b8c837_b7f2f76f30004373b87fe5da67f0af9e.pdf
    • https://cdn.shopify.com/s/files/1/0437/4170/8453/files/libube.pdf
    • https://cdn.shopify.com/s/files/1/0468/1066/1018/files/vilaruke.pdf
    • https://cdn.shopify.com/s/files/1/0429/6287/8618/files/bovepumepegabisudevas.pdf
    • https://cdn.shopify.com/s/files/1/0431/1479/1069/files/26690485537.pdf
    • https://cdn.shopify.com/s/files/1/0429/8149/0847/files/jumabem.pdf
    • https://cdn.shopify.com/s/files/1/0430/1121/1417/files/gevavosavovagenipozo.pdf
    • https://cdn.shopify.com/s/files/1/0433/8126/0440/files/74848427731.pdf
    • https://cdn.shopify.com/s/files/1/0430/3175/6957/files/2731603167.pdf
    • https://cdn.shopify.com/s/files/1/0429/0763/1782/files/jixasen.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_off00006013.bin
8f693ad1a3e6171e1a21d85eae3ca23b9e7889452ce690814a14305f44f4de96		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6013 4984 bytes
font_01_sfnt_off00007103.bin
1c8ff61b8ba987a33b527d8f0643401dbf532cf9a010718c9829fb4ba406ad00		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7103 13604 bytes

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