Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d19da4d6b59452f…

MALICIOUS

PDF

43.0 KB Created: 2020-03-09 11:37:24 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 52449cf39e1623ed421ea4baae4dc59d SHA-1: 4253bdf2dd9c22ae7dac68123fec932a85311591 SHA-256: 9d19da4d6b59452f30a695155f11a2fc569a50cba8af722feebc4877589729b2
62 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, identified as a 'PDF_SEO_LINK_FARM' heuristic. The document body, though partially corrupted, contains a reference to 'indirect speech exercises for class 9', suggesting a lure. The primary function appears to be directing users to a vast network of linked websites, likely for SEO spam or to host further malicious content.

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://kennedygolf.net/uploads/1/3/0/6/130639036/130639036.html#indirect+speech+exercises+for+class+9
    • http://www.onehundredpercentco.com/uploads/1/3/0/6/130604548/0514fb0.pdf
    • http://glslang.org/uploads/1/3/0/2/130289703/dufafebaxonixeg.pdf
    • http://ammaartdebienetre.com/uploads/1/3/0/7/130775590/ba1f2cc0.pdf
    • http://chardschoolball.co.uk/uploads/1/3/0/6/130603956/2026f58622.pdf
    • http://mail.smlworld.co.uk/uploads/1/3/0/7/130738929/jinirixo.pdf
    • http://dictionary-of-regional-english.com/uploads/1/3/0/6/130620700/kobudi-futeda-zurujido.pdf
    • http://clevelandtoybox.com/uploads/1/3/0/5/130589135/fedelepu_tolageli.pdf
    • http://grantswanson.net/uploads/1/3/0/3/130313612/34458da0bbca.pdf
    • http://carnesupremabrangus.com/uploads/1/3/0/8/130813111/df9b449760d.pdf
    • http://newyorkcitycriminalattorney.net/uploads/1/3/0/2/130287808/dozitugasaxonaxona.pdf
    • http://triumphantlawnandlandscapeservices.com/uploads/1/3/0/6/130640094/mixofix.pdf
    • http://edgeservicesllc.com/uploads/1/3/0/4/130435654/bawapiwu_jusagirujulok_roxixigo_ludif.pdf
    • http://mrbuttsushistory.com/uploads/1/3/0/6/130620792/xosedibaf-raled-dapotuziw-mofax.pdf
    • http://care-association.info/uploads/1/3/0/7/130776861/sidavaz_gamek.pdf
    • http://sitbackrobotics.com/uploads/1/3/0/4/130435646/fab199fe664c11.pdf
    • http://personaloutfits.com/uploads/1/3/0/7/130776113/b6746825657b29.pdf
    • http://bluegreyinc.net/uploads/1/3/0/6/130639445/vobokevesalajo.pdf
    • http://woodlandharvestmountainfarm.org/uploads/1/3/0/6/130604789/dupegemu.pdf
    • http://hostmaster.richard-watts.com/uploads/1/3/0/4/130483656/webaxejalubupo-faxitomorov-fewekubezaguxan-kijokamesid.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_off00007fcc.bin
56a9ccffe7ca5f8ab130ff29d0592dbe737959ea9095cbe45ea7e2fac0601dbc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7FCC 7940 bytes

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