Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2914a468499eeab…

MALICIOUS

PDF

36.4 KB Created: 2020-06-02 14:49:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 72653cf167a90832ff5f6b3e57cc25ea SHA-1: 64a7c097fa262700a8c6fb5ec72e50747753fe01 SHA-256: f2914a468499eeab5d095cf58fafb3a01fe21662ac0c6b37bfb45ba7f75f7418
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF file contains a large number of external links, many of which are hosted on domains associated with SEO link farms. The primary heuristic indicates a 'PDF_SEO_LINK_FARM' which suggests the document is designed to generate traffic to these external sites. The embedded document body text, though heavily obfuscated, contains URLs that are also listed in the extracted URLs, reinforcing the link farm tactic. The purpose appears to be to redirect users to potentially malicious or phishing content hosted on these numerous domains.

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://guerassalsas.shop/uploads/1/3/0/6/130639924/130639924.html#de+la+soul+the+grind+date+zip
    • http://thepuppyleague.com/uploads/1/3/1/4/131438514/6972066.pdf
    • http://tacticalinsights.net/uploads/1/3/0/4/130494478/poxagi.pdf
    • http://kencot.net/uploads/1/3/1/8/131871650/8150492.pdf
    • http://kababsara.com/uploads/1/3/1/4/131454029/redabononabonaw.pdf
    • http://thepoloshop.co.nz/uploads/1/3/0/9/130969576/49631c25.pdf
    • http://guerassalsas.shop/uploads/1/3/0/6/130639924/terms.html
    • http://guerassalsas.shop/uploads/1/3/0/6/130639924/dmca.html
    • http://guerassalsas.shop/uploads/1/3/0/6/130639924/policy.html
    • https://mozujul.files.wordpress.com/2020/05/bagejozixeputinubofanefi.pdf
    • https://jixuwisat.files.wordpress.com/2020/06/wofuzikok.pdf
    • https://butisukumig.files.wordpress.com/2020/06/surukagagijotubolezed.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_off0000628e.bin
7fa2a4032ae3de15fe1b1ccab4567dc17d4af204d0c95442971ae79f443287ad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x628E 10572 bytes

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