Malicious PDF — malware analysis report

Static analysis result for SHA-256 30db561e75f1027c…

MALICIOUS

PDF

45.3 KB Created: 2020-07-29 09:39:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 54620e0781b1ddff517c6a8b9383e0d0 SHA-1: 05541c8130c9961719b5d92d77e7af1371811e1b SHA-256: 30db561e75f1027c129ef7cabd0d95653f30dbdeb9a02dd68a10cf728f32733c
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded external links, with the primary link pointing to a known malicious redirector. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' and 'PDF_SEO_LINK_FARM' strongly indicate that this document is designed to lure users to malicious sites. The document body is heavily obfuscated and does not provide clear textual clues, but the link farm nature suggests a phishing or malware distribution attempt.

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.ru/pify?keyword=brocade+fabric+vision
    • http://files.muevetefacil.com/uploads/1/3/1/4/131453253/2ba804e8dead3.pdf
    • http://files.mycrystallounge.com/uploads/1/3/1/3/131378915/12aa6f.pdf
    • http://files.oakshawtrinity.org.uk/uploads/1/3/0/7/130738771/c47e76cb2a.pdf
    • http://files.thesjrphotography.com/uploads/1/3/0/8/130815009/narolikura.pdf
    • http://files.mccaulleysminidoxies.com/uploads/1/3/2/7/132741764/5136724.pdf
    • https://cdn.shopify.com/s/files/1/0433/5294/8901/files/66016750092.pdf
    • https://cdn.shopify.com/s/files/1/0434/4512/5281/files/jomuraxemilamobasabuxipuf.pdf
    • https://cdn.shopify.com/s/files/1/0432/5661/0969/files/7932814476.pdf
    • https://cdn.shopify.com/s/files/1/0427/4746/1788/files/pozadazavonitumuremutav.pdf
    • https://cdn.shopify.com/s/files/1/0428/2312/3100/files/zopemajikodevi.pdf
    • https://cdn.shopify.com/s/files/1/0429/6278/0311/files/vexiwezususuba.pdf
    • https://cdn.shopify.com/s/files/1/0430/9454/0452/files/dinujibafoxegike.pdf
    • https://cdn.shopify.com/s/files/1/0430/9024/7829/files/4551434102.pdf
    • https://cdn.shopify.com/s/files/1/0431/6997/2392/files/20965651780.pdf
    • https://cdn.shopify.com/s/files/1/0431/7465/8216/files/64946510432.pdf
    • https://cdn.shopify.com/s/files/1/0432/0821/2638/files/pumovemegekesibakiwomabog.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_off0000747e.bin
3a361aab8bfba38d64ef7fdd7bbdf495b7c47b1927b13219623014a076d1db86		 pdf-font-stream PDF embedded font (sfnt) at offset 0x747E 4940 bytes
font_01_sfnt_off00008549.bin
38537ff5a3fe15d1eba9e0bcaa0fedb9e811d205cc04f79b5558f35a84e5cfe7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8549 10100 bytes

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