Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec50fe9ecaae0ae4…

MALICIOUS

PDF

40.6 KB Created: 2020-08-30 23:29:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3bd46743c4c817bd166bcc0cfe5fafea SHA-1: 97ac69e32637a289294590c9e8b720e40355a3fc SHA-256: ec50fe9ecaae0ae450327b0df5e96b73f8d9c01509561c592ddcc529f2dc8657
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the text 'La magia de pensar en grande pdf' and the malicious URL, suggesting a lure to trick users into clicking the link. The presence of numerous other PDF links indicates a link farm strategy, likely to obscure the malicious destination.

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=la+magia+de+pensar+en+grande+pdf
    • https://cdn.shopify.com/s/files/1/0430/4257/0402/files/93724075252.pdf
    • https://cdn.shopify.com/s/files/1/0432/9721/0532/files/plasmacam_for_sale_craigslist.pdf
    • https://cdn.shopify.com/s/files/1/0454/3139/0364/files/soxetadat.pdf
    • https://cdn.shopify.com/s/files/1/0427/9389/4044/files/81474091866.pdf
    • https://cdn.shopify.com/s/files/1/0430/2848/0157/files/dokagosudufefejoxawamumub.pdf
    • https://static.usrfiles.com/ugd/b8c837_664249c81da44ab2969ba9e06293e833.pdf
    • https://static.usrfiles.com/ugd/be19e1_65bba435132440e2a65770d62f209b6b.pdf
    • https://static.usrfiles.com/ugd/5cf23b_63f9570e3c714b9e9f15867b729378a3.pdf
    • https://cdn.shopify.com/s/files/1/0439/9998/5822/files/neoclassicism_in_english_literature.pdf
    • https://cdn.shopify.com/s/files/1/0431/2956/9434/files/destiny_2_last_wish_raid_riven_guide.pdf
    • https://cdn.shopify.com/s/files/1/0436/0319/8114/files/gantt_chart_template_project_timeline.pdf
    • https://cdn.shopify.com/s/files/1/0429/6572/9429/files/sosajusikizezosi.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_off00005da4.bin
b8b445acce9f3cb332d5019b8ddc931676f003474fe8f73206b27e7c333be189		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DA4 5272 bytes
font_01_sfnt_off00006f7c.bin
e9557f98a8e95ce4d7e5e01e30767f9df173262b49e28d177b6609c38bfe3fe8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F7C 11324 bytes

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