Malicious PDF — malware analysis report

Static analysis result for SHA-256 38db8f0653e8226d…

MALICIOUS

PDF

32.9 KB Created: 2020-06-15 00:40:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 534b00b350bff3dd5ee43a0c12eb6168 SHA-1: c2033ee74f775b6dc49d2ee056910a7981737177 SHA-256: 38db8f0653e8226d554b17225296c3d84c110ba0ba51cf61f20d3bc4c34db7b8
62 Risk Score

Malware Insights

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

The PDF file contains a significant number of external links, identified by the 'PDF_SEO_LINK_FARM' heuristic. These links point to various domains, predominantly using numeric slugs in the URL path, suggesting a link farm or SEO abuse tactic. The primary purpose appears to be redirecting users to these external sites, which are likely used for distributing further malware or conducting phishing attacks. No scripts were extracted from this sample.

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://ramweedhuis.com/uploads/1/3/0/3/130323703/130323703.html#modellbau+katalog+pdf
    • http://2027media.com/uploads/1/3/0/4/130435848/dukekageretasibov.pdf
    • http://my-benefit.com/uploads/1/3/0/6/130620985/kikawusiloto_vofuw_mukatus.pdf
    • http://ladilush.com/uploads/1/3/0/4/130476499/fagofiwepexalim-larojoje.pdf
    • http://blackcatsculpture.com/uploads/1/3/0/5/130589281/8766099.pdf
    • http://lmlrealty.com/uploads/1/3/0/8/130814058/wilufiwo.pdf
    • http://webdisk.createdbymouse.com/uploads/1/3/0/4/130476270/5cde956e410f94.pdf
    • http://daree2be.com/uploads/1/3/1/3/131380029/3d2153.pdf
    • http://eastcorkpayroll.ie/uploads/1/3/1/1/131164519/volitovavi-fepixadi-fejaxoli-bixeduselezaru.pdf
    • https://raxener.files.wordpress.com/2020/06/dezuwabalofibe.pdf
    • https://fojesezowivi.files.wordpress.com/2020/06/47030076495.pdf
    • https://mujirarog.files.wordpress.com/2020/06/32047163291.pdf
    • https://sowozegoji.files.wordpress.com/2020/06/92881302019.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_off00005243.bin
2c05bae0c901941243314e163f31a55f08ad221175a6a6e3d41dff72f91510e9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5243 11100 bytes

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