Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c8202018ad2db5a…

MALICIOUS

PDF

43.0 KB Created: 2020-03-22 02:18:00 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: ae65bcf962e01ffe3086381116ce5689 SHA-1: 5d3de975708ce5d77efa7a22ee6dc949a61a8622 SHA-256: 9c8202018ad2db5ac8cab073ffb3a91fd3e8d7941d3f1b7a7d2ecef83ec9113b
92 Risk Score

Malware Insights

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

This PDF document employs a link farm technique, embedding numerous external links to various domains. The primary lure appears to be a 'Solucionario fisica 2 bach anaya', suggesting an attempt to attract students seeking academic resources. The document's structure and the high volume of outbound links strongly indicate a malicious intent to redirect users to potentially harmful content hosted on these external sites. No scripts were extracted, and the document body itself is heavily obfuscated.

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://timeframingconsulting.com/uploads/1/3/0/7/130775920/130775920.html#solucionario+fisica+2+bach+anaya
    • http://deltaescapenow.com/uploads/1/3/0/6/130604458/zisovurivun_kamikelo_jojobewix_fegene.pdf
    • http://hiddenoakscontractingservices.com/uploads/1/3/0/8/130813797/sibubik_wizofabuxar_jorivupipeb.pdf
    • http://integratingleadership.com/uploads/1/3/0/8/130813054/0f5406617e04b2f.pdf
    • http://hostmaster.patrickhawkins.com.au/uploads/1/3/0/4/130436285/rogigepotole.pdf
    • http://www.professormichaelgreer.com/uploads/1/3/0/4/130476493/8974466.pdf
    • http://www.bucharestinthebeltway.com/uploads/1/3/0/8/130874437/gelopopa.pdf
    • http://filoulefoufou.com/uploads/1/3/0/2/130289724/dc741d.pdf
    • http://wowees.com/uploads/1/3/0/6/130639036/riparelulaki.pdf
    • http://bisforbravo.com/uploads/1/3/0/7/130740292/tunavipevuku.pdf
    • http://liveandlovenpdfree.com/uploads/1/3/0/5/130588606/bcb4d81.pdf
    • http://greenhandgardens.com/uploads/1/3/0/6/130620828/logavanatejuxojijede.pdf
    • http://ntwstudioart.com/uploads/1/3/0/5/130544746/nevivalu_xalugesela_diwefotezubufi.pdf
    • http://mx.freeplantingplans.com/uploads/1/3/0/6/130620888/719ef6d.pdf
    • http://www.leadinghrsolutions.com/uploads/1/3/0/5/130589042/e0954fda.pdf
    • http://stockbroker-fraud-lawyer.com/uploads/1/3/0/2/130272232/b111d064350.pdf
    • http://ribligion.com/uploads/1/3/0/7/130776401/totogota.pdf
    • http://kristiwaits.com/uploads/1/3/0/4/130476035/bezejilinor.pdf
    • http://larissa.studio/uploads/1/3/1/1/131163691/rajewalepi_zumowuzorigut.pdf
    • http://kcufti.com/uploads/1/3/0/3/130313671/fufuzabazaratinib.pdf
    • http://namssafety.com/uploads/1/3/0/7/130738955/8582612.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006c98.bin
1957428794578a072b8983e864e5701b52391162abfb2d6d14c6295fa8a16687		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C98 6444 bytes
font_01_sfnt_off00007c5a.bin
c69ba90eb608d9bf4c766f52f8e24d2bbbadea04d57fd17a796d3cefeeeaf63e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C5A 8828 bytes

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