Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8116b1ae8ea262d…

MALICIOUS

PDF

40.5 KB Created: 2020-04-11 15:22:53 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 782e6a959b796e6099252470ba231b96 SHA-1: d3aae083df0a534549a233cb9b2474c0f720ab10 SHA-256: d8116b1ae8ea262d1ad23558be7d05ff8e94c06aad32b03b923914e43afec4d0
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains a large 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 across multiple sites. The document body is heavily obfuscated, preventing a clear understanding of its direct purpose beyond the link farm activity. 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://baylandesign.net/uploads/1/3/0/8/130874370/130874370.html#canciones+de+san+miguel+arcangel
    • http://saltcitysoccer.com/uploads/1/3/0/6/130639362/8026682.pdf
    • http://decorationofhouses.com/uploads/1/3/0/3/130379522/455231.pdf
    • http://prissyville.com/uploads/1/3/0/4/130478123/5685334.pdf
    • http://houseofgutters395.com/uploads/1/3/0/8/130873709/bubunesur-xagepa-rirerum.pdf
    • http://efficientworkouts.com/uploads/1/3/0/4/130435536/fegonaz.pdf
    • http://oneofoneatelier.net/uploads/1/3/0/4/130476310/db00b.pdf
    • http://jdsenergyservices.com/uploads/1/3/0/5/130551523/rexim.pdf
    • http://saymcpies.com/uploads/1/3/0/5/130540507/daa4b.pdf
    • http://madebylumason.com/uploads/1/3/0/6/130621066/9b239.pdf
    • http://monoss.com/uploads/1/3/0/6/130620309/bepefizol_wupotixa.pdf
    • http://collineverett.com/uploads/1/3/0/9/130968985/3620634.pdf
    • http://granitecountertopsarlington.net/uploads/1/3/1/1/131164310/rivinoperodusovalane.pdf
    • http://4964clothing.com/uploads/1/3/0/6/130604541/5788332.pdf
    • http://4964clothing.com/uploads/1/3/0/6/1
    • 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_off00007360.bin
db10b9815efdcbe7322a1635004548653820e9352d8be42816b2496f59709516		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7360 9416 bytes

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