Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c46eeabce407585…

MALICIOUS

PDF

34.0 KB Created: 2020-06-11 22:11:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 45941b8a3bd56dbb60564b7656086c43 SHA-1: 81a98179550c9a18b31e0461b0e832df266e7033 SHA-256: 4c46eeabce407585a68ec97948e1c898aa127a67e5fd2e14383dc1547e959aea
62 Risk Score

Malware Insights

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

The PDF document contains a heuristic firing for a 'PDF_SEO_LINK_FARM', indicating it hosts a large number of external links. The document body and extracted URLs confirm this, with multiple links pointing to domains that appear to be part of a link farm designed to drive traffic. The primary lure seems to be 'Chip pdf compressor'. No scripts were extracted, limiting the analysis of direct payload delivery.

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://miraclesforlife.net/uploads/1/3/0/7/130739389/130739389.html#chip+pdf+compressor
    • http://homevisitcomputers.com/uploads/1/3/0/7/130776415/kesudotiwakopoxej.pdf
    • http://holjormac.org/uploads/1/3/0/7/130776358/76be236.pdf
    • http://fairdealengineering.com/uploads/1/3/1/6/131606839/8208953.pdf
    • https://jumalorapof.files.wordpress.com/2020/06/dakawuxajedatapu.pdf
    • https://zinisarov424395058.files.wordpress.com/2020/06/6294715900.pdf
    • https://sosunilavef.files.wordpress.com/2020/06/kaselisonu.pdf
    • https://fanutuzak499104460.files.wordpress.com/2020/06/fuvegesibofedelapegebonuj.pdf
    • https://gujobuzagam594322867.files.wordpress.com/2020/06/xizavilimewonefavo.pdf
    • https://dowutoweviki.files.wordpress.com/2020/06/97286421365.pdf
    • https://zulirekenix.files.wordpress.com/2020/06/towusovifapazuxowozof.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_off000057a0.bin
21d3dd4d026b6e142953f26482a1e2f4ec8aab1b6e79a04a3a8777a0258d24de		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57A0 11068 bytes

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