Malicious PDF — malware analysis report

Static analysis result for SHA-256 83a692d3eacb3040…

MALICIOUS

PDF

45.1 KB Created: 2020-04-16 04:11:41 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 516aea3d9a4fe77c6adbdaecf25bb488 SHA-1: aaa9f9b19732f02a21c0781950bcde8d672d3636 SHA-256: 83a692d3eacb304048fa07df516059aa3c5293c3509c6f88ddcd59efc327fcc6
122 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which are numerically or generically named, suggesting a link farm or SEO abuse tactic. The ClamAV detection 'Pdf.Dropper.Agent-9208097-0' indicates it functions as a dropper. The embedded URLs likely lead to further malicious content or phishing pages. The document body, though heavily obfuscated, contains references to a 'competency mapping project report mba', which is likely a lure.

Heuristics 4

  • 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.
  • ClamAV: Pdf.Dropper.Agent-9208097-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-9208097-0
  • 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://elenarcaballero.com/uploads/1/3/1/3/131379325/131379325.html#competency+mapping+project+report+mba
    • http://howwemove.net/uploads/1/3/1/4/131407549/warosujete_nilumije.pdf
    • http://diabetesrelatedretinopathy.org/uploads/1/3/0/5/130543855/mubiloxi.pdf
    • http://skandinaviskgolfgruepppe.com/uploads/1/3/0/3/130323556/f8a01077c83f68.pdf
    • http://fynesilver.com/uploads/1/3/0/5/130540118/4008296.pdf
    • http://timeshareheroes.com/uploads/1/3/0/8/130813369/3119583.pdf
    • http://twointernational.net/uploads/1/3/0/2/130289173/rawawitusedulat.pdf
    • http://thehighend122.com/uploads/1/3/0/2/130291809/jaroximilanu-debovanujelovot-togudipiwi-vosebefikemete.pdf
    • http://chickhenning.com/uploads/1/3/0/3/130323723/buvotivamozexorife.pdf
    • http://lilybellesnaturals.com/uploads/1/3/0/3/130379118/namelefavog.pdf
    • http://paymentcardsettlementclaim.com/uploads/1/3/0/6/130621472/tedesotulelufew-repepulopoxokan.pdf
    • http://boatinsurance.wales/uploads/1/3/0/6/130620942/9895633.pdf
    • http://songbirdonmarshill.com/uploads/1/3/0/7/130738939/padifexova.pdf
    • http://beersignpickers.com/uploads/1/3/0/6/130639782/bomevipaguf_sagalafilareni.pdf
    • http://childrensphysioonthemove.com/uploads/1/3/0/7/130738680/0abcf047b5c.pdf
    • http://angelahoffmann.com/uploads/1/3/0/9/130969225/tidasiwosuburuwupinu.pdf
    • http://boatinsurance.wales/uploads/1/3/0/6
    • 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_off00007359.bin
15d6e4057f6ee45d738258b33141e9fab5db828561f9bea0f2305ad3672ebf45		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7359 8076 bytes
font_01_sfnt_off00009277.bin
65ca2fa633a49bc637c245e3469a24bec82cbb291b9200d770c42ee2df1588ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9277 16096 bytes

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