Malicious PDF — malware analysis report

Static analysis result for SHA-256 1fb193916373d1b3…

MALICIOUS

PDF

51.8 KB Created: 2020-08-30 07:11:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 436c70e79cc7ca2cd35ef07a650079a1 SHA-1: 4eb2d0d9ebe6efb6746b78eecf05bf59577a6daa SHA-256: 1fb193916373d1b37d26fafe7efb54c0cdea8832961b38f44650a8f017b6b210
120 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.cc, which is disguised as a search result for a popular book. This suggests a phishing or social engineering attack aimed at directing users to malicious content. The PDF also contains a large number of external links, many pointing to Shopify domains, which is characteristic of SEO link farms used to manipulate search results or distribute 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.cc/wix?keyword=trials+of+apollo+dark+prophecy+summa
    • https://static.usrfiles.com/ugd/b8c837_0378499d807e41d8b2a47aa2df882a6c.pdf
    • https://static.usrfiles.com/ugd/1fbf8b_bc3ffcfb153f48e6958c51067f89cbda.pdf
    • https://static.usrfiles.com/ugd/10b11f_c24b4785130f49a4a9d4ff5ee12ca5b6.pdf
    • https://static.usrfiles.com/ugd/784815_e591f9fe06034343bc1c7e08f0b36f80.pdf
    • https://static.usrfiles.com/ugd/b8c837_1c40d98904134ebeb83011c833cda62f.pdf
    • https://static.usrfiles.com/ugd/6df952_1317c7509a1d49b9bda55ba5f572b0a3.pdf
    • https://cdn.shopify.com/s/files/1/0435/9965/9176/files/tarigevunadivumeg.pdf
    • https://cdn.shopify.com/s/files/1/0432/3429/5966/files/maintenance_checklist_form_template.pdf
    • https://cdn.shopify.com/s/files/1/0439/2602/8456/files/xamarin_forms_bindableproperty._create_example.pdf
    • https://cdn.shopify.com/s/files/1/0428/4373/4172/files/57769176131.pdf
    • https://cdn.shopify.com/s/files/1/0433/3525/4171/files/dusopurifupafusulodazoko.pdf
    • https://cdn.shopify.com/s/files/1/0434/3834/2311/files/5624391856.pdf
    • https://cdn.shopify.com/s/files/1/0440/6598/0581/files/72913955172.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_off00008e26.bin
a1dbe6397bff1d68a09c44d51d292536b1df4bc5d5beb76d1a5b9c92bb6c55e7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8E26 5512 bytes
font_01_sfnt_off0000a0bd.bin
ab2244d97136fc0d57eaf7c692db3a7b85e2ec822d7413cf713cfd2534481b15		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA0BD 9824 bytes

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