Malicious PDF — malware analysis report

Static analysis result for SHA-256 47b5607333ce5a81…

MALICIOUS

PDF

45.5 KB Created: 2020-08-30 07:57:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 84d75c77881ef1014281653d2c18dfb0 SHA-1: 4e8ee37e24c32bda1f767e2aeb0b38b40686f115 SHA-256: 47b5607333ce5a81f0cd358ddcb030be9b15fa68ee19db85ee2acea25e08877d
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 Shopify domains hosting other PDFs, a technique often used for SEO poisoning or link farming. One critical heuristic identified a link to a known malicious redirector, https://ttraff.cc/wix?keyword=orange+rx+module, indicating a likely attempt to direct users to malicious content. The document body, though heavily obfuscated, also contains this redirector URL.

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=orange+rx+module
    • https://cdn.shopify.com/s/files/1/0429/4931/2665/files/dialogos_sobre_fisica_atomica.pdf
    • https://cdn.shopify.com/s/files/1/0434/1334/0316/files/home_cleaners_template.pdf
    • https://cdn.shopify.com/s/files/1/0438/3558/8770/files/13326624025.pdf
    • https://cdn.shopify.com/s/files/1/0433/0097/8853/files/gogonibidabix.pdf
    • https://cdn.shopify.com/s/files/1/0431/3464/8474/files/remove_autofill_chrome.pdf
    • https://cdn.shopify.com/s/files/1/0431/3828/5734/files/wivixizatatel.pdf
    • https://cdn.shopify.com/s/files/1/0434/7602/5497/files/89235487139.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jaled.pdf
    • https://cdn.shopify.com/s/files/1/0430/0885/2117/files/pulufagivojifokegogulabom.pdf
    • https://static.usrfiles.com/ugd/b8c837_e60d38d172564e7582d1c6a0d27d4e02.pdf
    • https://static.usrfiles.com/ugd/83e24f_1382d32ea3cb4262bfab1b0aa2809e03.pdf
    • https://cdn.shopify.com/s/files/1/0433/8355/4202/files/69567799328.pdf
    • https://cdn.shopify.com/s/files/1/0427/7728/0671/files/ciencias_formales_libro.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_off00006782.bin
93f809aa316860f6f67aee686cf750ab1452599fe728f9d0474640074c371040		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6782 4816 bytes
font_01_sfnt_off000077be.bin
1454a4407828318f41fa4cbf41aca03945da7691a57d3bad73c48092e067cecc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77BE 10480 bytes
font_02_sfnt_off00009bad.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9BAD 4324 bytes

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