Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e2f9dd268079e9e…

MALICIOUS

PDF

29.3 KB Created: 2020-04-30 23:43:29 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 69aa73f4843bad4d89a8129d2a367fc1 SHA-1: 665c4df881ca55118e3a96c5b25353376f56e173 SHA-256: 1e2f9dd268079e9e797b396abe241bd7f7ab52d31d03b81956424f65a49f00e9
62 Risk Score

Malware Insights

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

This PDF file exhibits characteristics of a link farm, embedding numerous external URLs. The heuristic 'PDF_SEO_LINK_FARM' specifically flags this behavior, indicating a potential attempt to manipulate search engine results or redirect users to malicious content. The presence of many unknown-reputation URLs reinforces this assessment. No scripts were extracted, limiting the analysis to the document structure and embedded links.

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://seaweedersgardenclub.com/uploads/1/3/1/4/131408172/131408172.html#carpinteiro+pregador+daniel+e+samuel+playback
    • http://oncologyconsulting.nl/uploads/1/3/0/3/130313230/447a51733fa.pdf
    • http://eleganceofwood.com/uploads/1/3/0/5/130588506/jaruboximi.pdf
    • http://globalluxurymarketers.com/uploads/1/3/0/7/130739508/5c0928edc13.pdf
    • http://expertsdelphillc.com/uploads/1/3/0/8/130813601/lakigujuv_vusolugakife_wasosiru_lozovadururuxuz.pdf
    • http://bodybarn.net/uploads/1/3/0/7/130776511/9344881.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_off0000426d.bin
95d46b597ee7f5df5c7e7d0df36f4a9db3f17092f807227815b0efab2630d359		 pdf-font-stream PDF embedded font (sfnt) at offset 0x426D 7864 bytes
font_01_sfnt_off00005e8e.bin
83d89f79375f7f339e88070a8779324ce221c94923bff415e388e162fbc46cfe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E8E 2604 bytes

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