Malicious PDF — malware analysis report

Static analysis result for SHA-256 5835d8c265612eb1…

MALICIOUS

PDF

62.6 KB Created: 2020-04-12 03:00:15 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 944cb0f510ed261394fcd567c0c34990 SHA-1: ca45b6579d4e266af3d15f4350200cd88f91ca8f SHA-256: 5835d8c265612eb116ffc7a18e9228b98f45b79e762b61e1e9aa46485b955021
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of external links, many of which point to domains that appear to be part of a link farm. The heuristic 'PDF_SEO_LINK_FARM' indicates a high volume of such links. The embedded URLs and the document body, though partially obfuscated, suggest a pattern of redirecting users to potentially malicious or spam-related content. 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://pianomethod.info/uploads/1/3/0/6/130640071/130640071.html#la+personalidad+de+dios+en+su+trinidad
    • http://jodistrangecoaching.com/uploads/1/3/0/9/130969678/bodibilid_vikemololudivob_luzigeguwe.pdf
    • http://capitalwestcali.com/uploads/1/3/1/3/131398576/58244bdb448aa.pdf
    • http://heavenrocks.net/uploads/1/3/0/2/130287883/039656253dcaf.pdf
    • http://hawkapalooza.com/uploads/1/3/1/4/131453501/5191334.pdf
    • http://stahlhuthreeds.com/uploads/1/3/0/5/130589449/xomufe.pdf
    • http://baysunmarine.com/uploads/1/3/0/9/130969237/tafare.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_off0000b428.bin
c7749860d192ffd39bbef5ab67ba160bb3ecaa2b1a83c00125d8e590f8f553b7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB428 9856 bytes
font_01_sfnt_off0000d740.bin
f31c439e28d0137206b91a151f21343900f846ed9ff070250fbe82eb1cc7da1d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD740 16204 bytes

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