Malicious PDF — malware analysis report

Static analysis result for SHA-256 2cbedf0fcdbd89eb…

MALICIOUS

PDF

37.8 KB Created: 2020-04-12 03:06:33 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 9699820b1a26c304e503837c342e0029 SHA-1: 07bc7ae2963b84ee4594c7e94cc7486cf8858044 SHA-256: 2cbedf0fcdbd89ebafc4872d5e74e621b0095687dddd4f36e976772f26ac3d3a
62 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, a technique often used for SEO spam or to redirect users to malicious sites. The heuristic 'PDF_SEO_LINK_FARM' specifically flags this behavior, indicating a mass of external PDF links hosted on various domains. No scripts were extracted, limiting the analysis of direct malicious actions within the file itself.

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://stand4kindness.org/uploads/1/3/0/4/130488542/130488542.html#icd+10+cm+code+for+left+baker%27s+cyst
    • http://tiffanykobbero.ca/uploads/1/3/0/6/130639294/2d78230ad8b040.pdf
    • http://songarts.com/uploads/1/3/1/4/131437116/f85e6ffc9b5136.pdf
    • http://partnerbindung.com/uploads/1/3/0/9/130969586/1872176.pdf
    • http://oncereadthis.com/uploads/1/3/0/6/130639526/65be2f0.pdf
    • http://oldmantakealookatyourlife.com/uploads/1/3/1/4/131438427/nazupe-xozosujuxupaziw-lusejakubo.pdf
    • http://stilwellwise.com/uploads/1/3/0/6/130604887/8541653.pdf
    • http://moschopsmedia.com/uploads/1/3/1/3/131379636/fufij.pdf
    • http://modehealthandfitness.com/uploads/1/3/0/5/130551053/9778e8347881.pdf
    • http://theberkeleyagent.com/uploads/1/3/0/2/130289745/dedelipefaj-lotukakewolon.pdf
    • http://angelinesmith.com/uploads/1/3/1/4/131405962/wezunudekepipew.pdf
    • http://tiffanykobbero.ca/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_off00006d9f.bin
9e5370d6f776502618a101d6fc64d7f3c38cae4d24e7ae45032c01a61bfc4ca8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D9F 7524 bytes

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