Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1cad1335659e736…

MALICIOUS

PDF

34.1 KB Created: 2020-06-03 04:31:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3a4acd31ab72feb22fdce569d6fd6ec6 SHA-1: cebbd23da33f3d3a0f8b1dda02bc26c1587f0c9d SHA-256: f1cad1335659e736ea7331f8e0035b0988dcf5ee2f5299004d4a43e7b3bbbc1a
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a significant number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various domains. The document body, though heavily obfuscated, contains references to these URLs, suggesting a link farming or redirection scheme. The primary intent appears to be directing users to a network of websites, potentially for malicious purposes such as phishing or malware distribution.

Heuristics 3

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://tdz539.bdgct.com/uploads/1/3/1/0/131071114/131071114.html#syndicate+farming+guide+poe
    • http://chicagofinancialsearch.net/uploads/1/3/0/2/130272347/4077838.pdf
    • http://dredcallahan.com/uploads/1/3/0/3/130323750/jifamo.pdf
    • http://cpanel.kendraswiley.com/uploads/1/3/0/6/130640010/8824524.pdf
    • http://denverautoquote.com/uploads/1/3/0/7/130739139/7672562.pdf
    • http://tdz539.bdgct.com/uploads/1/3/1/0/131071114/terms.html
    • http://tdz539.bdgct.com/uploads/1/3/1/0/131071114/dmca.html
    • http://tdz539.bdgct.com/uploads/1/3/1/0/131071114/policy.html
    • https://duzawexosusa.files.wordpress.com/2020/05/dexepipixata.pdf
    • https://xakogetezi.files.wordpress.com/2020/05/mubebeve.pdf
    • https://gepuguxiro.files.wordpress.com/2020/05/13877939719.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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000059dc.bin
50784c1673c779b7c1e6ef9ebc176ade0862033df04527f80230ea052bce1580		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59DC 10472 bytes

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