Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f48ba24bf43e701…

MALICIOUS

PDF

33.9 KB Created: 2020-03-16 10:05:01 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: b066608d38a2a8e6f2eddb5080cd16cc SHA-1: b5b25372c794cee2008df0aafd04b12275ec04f0 SHA-256: 2f48ba24bf43e70195ba179c7aec5149a357e4c8ac7e7d6ea28c36d0afb53488
92 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to other PDF files. This suggests a link farm or distribution mechanism for malicious content. The ML_NYX_PDF_MALICIOUS heuristic also strongly indicates malicious intent. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://life.mediutopia.com/uploads/1/3/0/6/130604304/130604304.html#vivah+movie+song+video
    • http://proconstructionteam.com/uploads/1/3/0/6/130603814/fesesez.pdf
    • http://www.cafefresco48.com/uploads/1/3/0/8/130873990/179fb5445.pdf
    • http://northeastflowershop.com/uploads/1/3/0/5/130590413/tuxoxovapiripigu.pdf
    • http://cocastlive.com/uploads/1/3/0/6/130603882/zevodex.pdf
    • http://cjentzart.com/uploads/1/3/0/7/130740571/1910552.pdf
    • http://supercoolertechnologies.com/uploads/1/3/0/6/130620327/bivutevabaluzo.pdf
    • http://adamrichardsteachingportfolio.com/uploads/1/3/0/8/130874305/xenit.pdf
    • http://www.perth-waterproofing.com/uploads/1/3/0/4/130435842/dugijume-nugisujazeked.pdf
    • http://www.malaysia-tours.my/uploads/1/3/0/5/130589245/55ec03efd118.pdf
    • http://dylanwyke.com/uploads/1/3/0/4/130483591/mawunuvid-radipesob.pdf
    • http://ministryofmissingsocks.com/uploads/1/3/0/4/130483184/1023104.pdf
    • http://hpudeal.com/uploads/1/3/0/5/130543991/f72b642d0efb.pdf
    • http://musesinthevineyard.com/uploads/1/3/0/3/130379155/d5d4c3ad3c38.pdf
    • http://newberryauthor.rpjandco.com/uploads/1/3/0/4/130436226/rutojusuro_zasudeb_jeremu.pdf
    • http://emeraldzen.com/uploads/1/3/0/7/130775912/31ce83b23c9.pdf
    • http://onlineestateagentz.com/uploads/1/3/0/7/130739705/48219ec6586c24.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_off00005c8a.bin
aab5aeaf2da1afefe6c4cb572f068a8f1a936d57c6d56fbc1f281728a10996a1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C8A 7780 bytes

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