Malicious PDF — malware analysis report

Static analysis result for SHA-256 9daefd8176f224c3…

MALICIOUS

PDF

47.8 KB Created: 2020-08-18 17:15:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 473c249a7ef9ef057ca76052cc8d3754 SHA-1: dbb6545ee8a963eb04f433da85780168e3fb51df SHA-256: 9daefd8176f224c335d3252d342a2423ef2e5afb68cc52bf4466c81c1df2c8cc
120 Risk Score

Malware Insights

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

The PDF contains a 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 'audio track for hollywood movies' and the malicious URL, suggesting a lure. The PDF also contains a large number of external links, many pointing to Shopify domains, which is characteristic of SEO link farm abuse. The primary malicious IOC is the 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.com/pify?keyword=audio+track+for+hollywood+movies
    • http://xezezonow.brockportblog.com/uploads/1/3/1/4/131413418/9194890.pdf
    • http://mitimibet.asustudentsforlife.com/uploads/1/3/0/7/130776760/3270843.pdf
    • http://files.mealtimematters.org/uploads/1/3/1/3/131398560/wizilu_nutiw_feporilireponar.pdf
    • http://files.streetfightersunitedkingdom.com/uploads/1/3/1/4/131437878/3c353d051f22fd3.pdf
    • https://cdn.shopify.com/s/files/1/0431/5879/8492/files/statistical_analysis_of_microbiome_data_with_r_pdf.pdf
    • https://cdn.shopify.com/s/files/1/0433/2378/5370/files/1187564497.pdf
    • https://cdn.shopify.com/s/files/1/0454/8021/4678/files/keto_diet_for_beginners_free.pdf
    • https://cdn.shopify.com/s/files/1/0431/4827/9957/files/89703125519.pdf
    • https://cdn.shopify.com/s/files/1/0433/3853/0965/files/61641392483.pdf
    • https://cdn.shopify.com/s/files/1/0432/4176/7072/files/86612788046.pdf
    • https://cdn.shopify.com/s/files/1/0437/7749/1105/files/www_apple_com_support_manual_ipodnano.pdf
    • https://cdn.shopify.com/s/files/1/0440/1466/5878/files/b_v_raman_astrology_books_free.pdf
    • https://cdn.shopify.com/s/files/1/0435/9107/3947/files/anbe_sivam_full_movie_free_hd.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_off000065a1.bin
c8724c68fb73aff99d1985349ff4ffa812de17ca446727dd7561c517ae81d8b0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65A1 5568 bytes
font_01_sfnt_off00007887.bin
f8fe09405e490a1e816ebe0c3143346f42ea91226ab3d5c74dc153f9c83c9fcd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7887 10620 bytes
font_02_sfnt_off00009ceb.bin
1108fde26526beb56470b911c7e3b1f040da0088942da3a1b45fff1576a9b534		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9CEB 16232 bytes

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