Malicious PDF — malware analysis report

Static analysis result for SHA-256 a286ac062e0eea52…

MALICIOUS

PDF

41.1 KB Created: 2020-08-29 10:07:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9fdc0241015e8e811bce611afa34262b SHA-1: 33e438fe0fbfc2136ffa019fc3516d225cdf5775 SHA-256: a286ac062e0eea521f4ccfb0be0d6bb5061af079f98f39c55f5c205409b65d8d
150 Risk Score

Malware Insights

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

The PDF document contains a prominent link that redirects to a malicious domain, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text related to 'Ryanair boarding pass' and the malicious URL, suggesting a social engineering lure. The PDF_SEO_LINK_FARM heuristic indicates a large number of embedded links, likely for SEO manipulation or to host further malicious content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=how+to+add+ryanair+boarding+pass+to+wallet
    • https://static.usrfiles.com/ugd/b8c837_e31805ad2bf1404c9b482ac49583b423.pdf
    • https://static.usrfiles.com/ugd/b8c837_d4cae5fa94474288b9034178c808b59d.pdf
    • https://static.usrfiles.com/ugd/b8c837_fb7f2479483b46509ae1b8bf42284415.pdf
    • https://cdn.shopify.com/s/files/1/0431/4634/6657/files/nerelodiwe.pdf
    • https://cdn.shopify.com/s/files/1/0462/5652/1367/files/25878626168.pdf
    • https://cdn.shopify.com/s/files/1/0431/2721/0144/files/durga_saptashati_path_vidhi_in_marathi.pdf
    • https://cdn.shopify.com/s/files/1/0436/5484/0485/files/45735054334.pdf
    • https://cdn.shopify.com/s/files/1/0440/9350/5688/files/r_random_number_generator.pdf
    • https://cdn.shopify.com/s/files/1/0430/8251/4581/files/24414069468.pdf
    • https://cdn.shopify.com/s/files/1/0427/8249/0791/files/95327055748.pdf
    • https://static.usrfiles.com/ugd/b8c837_487fc394f08a44459ad4c0592f0a8814.pdf
    • https://static.usrfiles.com/ugd/b8c837_facd8f0f98a144e2b13d908f4d4011ff.pdf
    • https://static.usrfiles.com/ugd/b8c837_9651985c44f0437dbdaa0d365ca0ab8f.pdf
    • https://static.usrfiles.com/ugd/b8c837_9f959deedbb14b019a9f5874d875d645.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_off00006233.bin
ef172d450e1c7e1ad336cb075cb44f7c6558c2396b82af0821b44a8718e59427		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6233 5424 bytes
font_01_sfnt_off000074be.bin
59e35201dafe5a5eb11eae6c470673e215889bf0fa57114d3e80acc94900f6b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74BE 10184 bytes

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