Malicious PDF — malware analysis report

Static analysis result for SHA-256 eabc787370ef9954…

MALICIOUS

PDF

41.2 KB Created: 2020-08-19 09:30:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 466aa157453649a020fd0320f6eb93e6 SHA-1: b03aad06f8aa49b61805554624632674e9453619 SHA-256: eabc787370ef99540ec494208fd1456a08e44042e91a8acf994e6f3fc2c9c885
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 a redirector service. The document body, though heavily obfuscated, contains a URL that appears to be a lure for 'Waitrose gluten free pasta sheets'. This suggests a phishing or scam attempt designed to redirect users to malicious infrastructure.

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/pify?keyword=waitrose+gluten+free+pasta+sheets
    • http://files.lescreationsdana.com/uploads/1/3/0/8/130813616/705449.pdf
    • https://cdn.shopify.com/s/files/1/0428/9629/4051/files/bubiwujafawol.pdf
    • https://cdn.shopify.com/s/files/1/0433/2778/3080/files/10910458629.pdf
    • https://cdn.shopify.com/s/files/1/0437/6707/0877/files/71809453447.pdf
    • https://cdn.shopify.com/s/files/1/0433/4419/9829/files/doripafimorakagekis.pdf
    • https://cdn.shopify.com/s/files/1/0429/8945/3473/files/7759181143.pdf
    • https://cdn.shopify.com/s/files/1/0437/2204/7637/files/island_biogeography.pdf
    • https://cdn.shopify.com/s/files/1/0429/5124/5987/files/76034350056.pdf
    • https://cdn.shopify.com/s/files/1/0438/5013/7760/files/pitabizokibuxoxisirini.pdf
    • https://cdn.shopify.com/s/files/1/0430/3667/2162/files/lubuma.pdf
    • https://cdn.shopify.com/s/files/1/0429/8778/2297/files/91289963369.pdf
    • https://cdn.shopify.com/s/files/1/0428/8780/7129/files/rational_functions_problems_and_solutions.pdf
    • https://cdn.shopify.com/s/files/1/0436/1102/9667/files/the_empty_house_algernon_blackwood.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_off0000634f.bin
739eec9f5bd65be312fa3e88339bde87e3514143bed01c2efd562c2763518628		 pdf-font-stream PDF embedded font (sfnt) at offset 0x634F 5176 bytes
font_01_sfnt_off000074f9.bin
57f3f80c25871e280cb3c356954deb583fa594721249dc6281a671c7c814ae42		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74F9 10352 bytes

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