Malicious PDF — malware analysis report

Static analysis result for SHA-256 c58eed23c11376b4…

MALICIOUS

PDF

35.3 KB Created: 2020-06-11 23:02:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 453e0e6c0ec6218f16ec461a85d606e0 SHA-1: 0a62aa4020dafb9846a43a11b99e6404f8f77e93 SHA-256: c58eed23c11376b44e06239a2f74e8bcf0feb881375b15a359dcbe39cfb14b62
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 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, suggesting a link farm or a method to distribute malicious content indirectly. The document body, though heavily obfuscated, contains references to URLs that are also present in the extracted URL list, reinforcing the link farm attack pattern. No scripts were extracted, limiting the analysis of direct payload delivery mechanisms.

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://host240.carmichaelnl.com/uploads/1/3/0/5/130589393/130589393.html#i+have+a+dream+worksheets
    • http://maloriearisumifineart.com/uploads/1/3/1/8/131856065/3e8708ad.pdf
    • http://webdisk.anglia.id/uploads/1/3/0/3/130324227/fodudivam.pdf
    • http://retroskoda.com/uploads/1/3/0/3/130323765/jekiwulu-niwoneregiva-vefulorinos-tukal.pdf
    • http://hotmamas.org/uploads/1/3/1/0/131071295/sagaxuweguga-kakorage-govajomesade-fexigud.pdf
    • http://mylifesadventures.com/uploads/1/3/0/4/130483862/tejebekek.pdf
    • http://settingtrndsbarbershop.com/uploads/1/3/1/4/131409074/moworupom.pdf
    • http://aminamediapro.net/uploads/1/3/0/3/130324440/xaxukesorevanup_pavolijojilemu.pdf
    • http://hotchiwitchi.com/uploads/1/3/1/8/131856108/bopako.pdf
    • http://general1948.com/uploads/1/3/1/3/131383383/1453577.pdf
    • http://kmaysphotography.com/uploads/1/3/1/6/131637656/2883735.pdf
    • http://elizabethgilligan.us/uploads/1/3/0/5/130588805/55bde9b9e8d9bf9.pdf
    • https://busamonavek.files.wordpress.com/2020/06/35812799284.pdf
    • https://vanopowipugi.files.wordpress.com/2020/06/72620268707.pdf
    • https://lepuwajoke.files.wordpress.com/2020/06/71973633068.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_off00005de3.bin
3f1ac5b4e12765d212e408f8f1d49ed518427c7899efdfecd9ea80529bb7ddc2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DE3 10688 bytes

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