Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4a0c56cbf007687…

MALICIOUS

PDF

38.6 KB Created: 2020-04-05 05:10:34 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: c3b7391ca6dbfbf93010203a9de4e72a SHA-1: 5ae319ddee86f010a1c9ba815539cb891bb7c9f2 SHA-256: a4a0c56cbf00768768a9c0aa2829004fef9f4290e5e85b313ead41bfed2a16f2
92 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, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on different domains. The ML_NYX_PDF_MALICIOUS heuristic also flagged this file with high confidence. The primary function appears to be directing users to a network of linked documents, potentially for SEO manipulation or to serve as a distribution point for further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://zumarock.org/uploads/1/3/0/7/130739235/130739235.html#the+black+arts+movement
    • http://newchoicemusic.com/uploads/1/3/0/6/130604799/jozuj.pdf
    • http://srcmine.com/uploads/1/3/0/6/130621313/tirofupavuza.pdf
    • http://cfaylounge.com/uploads/1/3/0/2/130271165/88083fc63df0.pdf
    • http://tahoetimbersledtours.com/uploads/1/3/0/8/130873801/2eb2b72cb3bf.pdf
    • http://kelseastarrawakening.com/uploads/1/3/0/5/130551656/0b9f67f3.pdf
    • http://roesslipub.ch/uploads/1/3/0/6/130620604/terebuxelikujel.pdf
    • http://enormecontrol.com/uploads/1/3/0/8/130874671/dewadaniki.pdf
    • http://3dfreeze.com/uploads/1/3/0/4/130476574/dazapabezit-wepinaremewuvak-forinefo.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_off00006cc1.bin
e2e347ee1a4a616c5b932216770ad3925715da1efb718d1757a665c9087d5ae0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CC1 8268 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.