Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0c1bac24d3d7752…

MALICIOUS

PDF

43.4 KB Created: 2020-08-30 22:49:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 62196a3e0dbd75537a165a18a92ae2ee SHA-1: 65e4753bdbcb9518bac772fdd920d3a4b71624de SHA-256: c0c1bac24d3d7752f39869dcb06d8950f613257dcc1e43454c90757474b86419
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 links, with one identified as a malicious redirector. The heuristic 'PDF_SEO_LINK_FARM' indicates a large collection of external PDF links, suggesting an attempt to create a link farm or distribute malicious content through a large number of seemingly benign URLs. The primary malicious URL identified is https://ttraff.com/wix?keyword=%25C3%25A0+l%2527+insu+de+mon+plein+gr%25C3%25A9.

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/wix?keyword=%25C3%25A0+l%2527+insu+de+mon+plein+gr%25C3%25A9
    • https://static.usrfiles.com/ugd/3e9e83_c41b214179884ca5b31e59e8f51e5202.pdf
    • https://static.usrfiles.com/ugd/20d83a_56ee4caf58e547cf8f8d6f06b1c9a2b6.pdf
    • https://static.usrfiles.com/ugd/b7ab08_050a6bd655224ffba520024751d85ec6.pdf
    • https://static.usrfiles.com/ugd/ae15ca_8eeadce05f6641f886e72a5f67a8905d.pdf
    • https://cdn.shopify.com/s/files/1/0430/4211/1650/files/18228196141.pdf
    • https://cdn.shopify.com/s/files/1/0431/0473/1300/files/liforududuzemajiliwetujut.pdf
    • https://cdn.shopify.com/s/files/1/0431/6895/6565/files/56071177272.pdf
    • https://cdn.shopify.com/s/files/1/0439/1154/4987/files/poster_bahaya_merokok.pdf
    • https://cdn.shopify.com/s/files/1/0432/4560/0936/files/jexivimiw.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/ruwisosipopiwusanitilowaz.pdf
    • https://cdn.shopify.com/s/files/1/0433/2378/5370/files/awaken_the_giant_within_by_tony_robbins_free_download.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_off00006635.bin
cba0d577911dd7674bc0d49b572e172d03ee21257ddcaf8dfcb0613eb0a62439		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6635 5256 bytes
font_01_sfnt_off000077bc.bin
fa0052ba583584a1a98a5d81d08f846178909f36ead4824868e8f75c2e24c6c8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77BC 12624 bytes

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