Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d39ebe4598f3a33…

MALICIOUS

PDF

41.8 KB Created: 2020-03-16 16:21:08 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 4bdca4ba5af65b44a29ababa11ef8e02 SHA-1: 879aa6ccfabc355955b9c18bfd8ccfcddc4dd7ef SHA-256: 9d39ebe4598f3a3304a16525d75fadb50dd91cab48a7ac268fe4ce99e05d4867
62 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links to external PDF files, many of which appear to be generated for SEO purposes. The document body mentions 'Stihl 019t oil cap' and includes the authoring application details, likely as a lure to disguise the malicious intent. The primary attack pattern involves directing users to a network of suspicious websites, potentially for phishing or malware distribution.

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://szml.brdge.org/uploads/1/3/0/5/130542935/130542935.html#stihl+019t+oil+cap
    • http://mksplumbingsocal.com/uploads/1/3/0/7/130738824/raxifexamo.pdf
    • http://www.wordofnoise.com/uploads/1/3/0/8/130873781/tovegunazuzivozixaxo.pdf
    • http://insrtagam.com/uploads/1/3/0/6/130639233/tojinozek.pdf
    • http://careersinyouth.com/uploads/1/3/0/4/130476413/sulujiv.pdf
    • http://aclarkphotography.com/uploads/1/3/0/8/130814423/91d4ad8ccef0398.pdf
    • http://dirkgentlydetectiveagency.com/uploads/1/3/0/7/130776130/jebazutinimorej_rekusowitimava_kukimotixogufiv_kigade.pdf
    • http://www.ritualcoffeebar.ca/uploads/1/3/1/1/131164519/7da5730ebb25.pdf
    • http://littlelennisboutique.shop/uploads/1/3/0/6/130604700/f860df84c84da4c.pdf
    • http://highlight.pl/uploads/1/3/0/6/130620460/9e90cb.pdf
    • http://rekwiredcosmeticsllc.com/uploads/1/3/0/2/130289767/lozesojamujiv.pdf
    • http://triciazoellerauthor.com/uploads/1/3/0/6/130621225/384034.pdf
    • http://daybreakrealestate.org/uploads/1/3/0/5/130550827/aa8699.pdf
    • http://adagedanceanddrama.com/uploads/1/3/0/5/130589031/lireduleju.pdf
    • http://www.monicamitchel.com/uploads/1/3/0/2/130289410/norerepumo_xuseravozonus_ganuzupolaxub_fewapopujefife.pdf
    • http://happilyhooked.net/uploads/1/3/0/7/130775853/zidovonu.pdf
    • http://taephotography.com/uploads/1/3/0/6/130639573/fetiv.pdf
    • http://nativfitness.net/uploads/1/3/0/2/130288364/5021066.pdf
    • http://asiaoutdoors.com.vn/uploads/1/3/0/7/130775221/vesadod-fomoginakipen.pdf
    • http://projcatcom.com/uploads/1/3/0/7/130775560/4632077.pdf
    • http://temeculavalleyfluteacademy.com/uploads/1/3/0/7/130775982/jeluwijotaj_varaxago_sowuwovibedab.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_off000077b6.bin
44ba2f2caa8ac58adade16abab7b1dbcae5ba8369461984497f4c9bfbbc0920e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77B6 9108 bytes

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