Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e9b5e226889e02d…

MALICIOUS

PDF

32.3 KB Created: 2020-08-11 13:06:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bd40a22ed9035c4d7d13c6fe28efe110 SHA-1: 01d9ab661bc28b46d8827fb24f7f8298ce2377d9 SHA-256: 2e9b5e226889e02d33303fb5cbe5c9befcc7ce22c51c6ec3e613e63c7fc64345
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, which is characteristic of a link farm designed to manipulate search engine results. One of these links, 'https://ttraff.cc/pify?keyword=crisis+in+the+built+environment+pdf', is identified as a malicious redirector. The document's content and structure strongly suggest a social engineering attempt to drive traffic to malicious infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=crisis+in+the+built+environment+pdf
    • http://sutiwi.notredameofeaston.com/uploads/1/3/1/4/131437984/goraduwude.pdf
    • http://lomakaxog.artistmikemeermann.com/uploads/1/3/1/4/131407222/5edd10192.pdf
    • http://files.can-do-fest.com/uploads/1/3/1/4/131407901/9553ece8d6.pdf
    • http://files.pagingoceanside.com/uploads/1/3/2/7/132741144/4404354.pdf
    • https://cdn.shopify.com/s/files/1/0432/2492/4319/files/97904463814.pdf
    • https://cdn.shopify.com/s/files/1/0427/5834/0774/files/vizio_remote_codes_direct_tv.pdf
    • https://cdn.shopify.com/s/files/1/0428/3655/7987/files/35517942717.pdf
    • https://cdn.shopify.com/s/files/1/0437/2230/9786/files/labewimo.pdf
    • https://cdn.shopify.com/s/files/1/0439/2160/4763/files/79509987383.pdf
    • https://cdn.shopify.com/s/files/1/0431/7790/2241/files/9489947026.pdf
    • https://cdn.shopify.com/s/files/1/0428/5464/5916/files/the_american_democracy_11th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0431/7731/2405/files/rirevolopugosatosuvuniwe.pdf
    • https://cdn.shopify.com/s/files/1/0433/0536/9758/files/zejezaz.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_off0000427d.bin
e13ace742ef34d8f7d14d69e9517ca06763bc9e26d3bdf84df66e922f3c6e0c4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x427D 5176 bytes
font_01_sfnt_off000053e9.bin
871f7c41ac6e1839f8e711cf17b77d9ec95740e3dfd83b48765f2203f15bf59e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53E9 9544 bytes

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