Malicious PDF — malware analysis report

Static analysis result for SHA-256 cf2f7e6d3e8f4848…

MALICIOUS

PDF

40.8 KB Created: 2020-08-21 03:12:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 65afd93ef27860db91e0d7180269a674 SHA-1: 7dde0cbec06f864c2830c2cc57e97a44428006d2 SHA-256: cf2f7e6d3e8f48481bdb1abb1df2f36e91341353befc4fa905cb2805da051492
120 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, many of which point to Shopify domains hosting PDF files, but one critical link redirects through ttraff.com, a known malicious redirector. This suggests a link farm or SEO poisoning tactic designed to lead users to malicious content. The document body, though heavily obfuscated, contains the primary malicious URL, indicating the intent is to redirect the user to external, potentially harmful sites.

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=infinity+blade+1+negative+bloodline+guide
    • http://files.mandiware.com/uploads/1/3/1/4/131453450/raboxokipafagizaneg.pdf
    • http://files.pucherosoundmachine.com/uploads/1/3/2/6/132681891/5a356db79d6ddc.pdf
    • http://motil.salt-kitchen-co.com/uploads/1/3/2/7/132740405/lagabek.pdf
    • http://files.wildrootsskinbody.com/uploads/1/3/0/9/130969218/lejepasezi-dapezojavev-gijuxapa-ruberugino.pdf
    • https://cdn.shopify.com/s/files/1/0427/9628/6111/files/18602366590.pdf
    • https://cdn.shopify.com/s/files/1/0433/9158/2357/files/html_tags_book.pdf
    • https://cdn.shopify.com/s/files/1/0437/1238/1079/files/77833115090.pdf
    • https://cdn.shopify.com/s/files/1/0432/6942/3269/files/42231993930.pdf
    • https://cdn.shopify.com/s/files/1/0430/2694/0067/files/exercicios_capacitores.pdf
    • https://cdn.shopify.com/s/files/1/0430/7868/0730/files/2406679704.pdf
    • https://cdn.shopify.com/s/files/1/0430/4342/2359/files/fizabitajalubebade.pdf
    • https://cdn.shopify.com/s/files/1/0446/7264/7331/files/champagne_colored_semi_formal_dresses.pdf
    • https://cdn.shopify.com/s/files/1/0434/8451/2406/files/lusajedezirejufo.pdf
    • https://cdn.shopify.com/s/files/1/0434/0459/1254/files/wiwilaxezepabugul.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_off00006247.bin
f3c25c925b5deb9deb10f61c4623648766bf811500bfb4ef026fa80314452113		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6247 5092 bytes
font_01_sfnt_off000073be.bin
8ec57f20964a3fe4b41d603497814fabf1f9aee352d247da20dc8b5341d892e6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73BE 10196 bytes

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