Malicious PDF — malware analysis report

Static analysis result for SHA-256 c58cfeede098231d…

MALICIOUS

PDF

42.0 KB Created: 2020-09-07 00:42:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5b4dc65962648020ab2714fae07fe61d SHA-1: 114351a7aa9cb3b4f5b064005f0b1be71b7be574 SHA-256: c58cfeede098231dae3b89423da55531ab1f683b562aa40f53bb94d7b76c145c
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, which points to 'https://ttraff.me/pify?keyword=compressed+facial+mask+sheets+bamboo'. This URL is likely part of a phishing or scam campaign designed to redirect users to malicious content. The document also contains a large number of embedded links, many pointing to Shopify, suggesting an attempt to create a link farm for SEO manipulation or to obscure the malicious redirector. 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.me/pify?keyword=compressed+facial+mask+sheets+bamboo
    • https://cdn.shopify.com/s/files/1/0431/5866/7415/files/85920902786.pdf
    • https://cdn.shopify.com/s/files/1/0430/7009/5521/files/23166932725.pdf
    • https://cdn.shopify.com/s/files/1/0440/2318/5566/files/loteria_de_frutas_y_verduras_en_ingles.pdf
    • https://cdn.shopify.com/s/files/1/0431/2979/8818/files/xawuwixidirujidib.pdf
    • https://static.usrfiles.com/ugd/96a426_147d63de55d447139cdc5d13d3c596ce.pdf
    • https://static.usrfiles.com/ugd/b8c837_608b274125884702a3938e1ac8db3600.pdf
    • https://cdn.shopify.com/s/files/1/0437/0979/2407/files/puzizilelubexasizobewowik.pdf
    • https://cdn.shopify.com/s/files/1/0440/8537/9237/files/74708072569.pdf
    • https://cdn.shopify.com/s/files/1/0435/7367/4142/files/lufuxapuzokefefejipaniz.pdf
    • https://cdn.shopify.com/s/files/1/0457/6641/0406/files/totilobivupituworunar.pdf
    • https://cdn.shopify.com/s/files/1/0435/8907/5102/files/99039785941.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_off000065f7.bin
2eaee2037da897bd746a10ac5ed767137b0cc49ab09ff9ee5d574571e5f2a17a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65F7 5504 bytes
font_01_sfnt_off00007875.bin
93b5f73c1e7772720678f96e0b56fc6939e2e7452c67debea835c3365bf091fb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7875 9884 bytes

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