Malicious PDF — malware analysis report

Static analysis result for SHA-256 a29744f7255e02fe…

MALICIOUS

PDF

40.9 KB Created: 2020-04-02 08:44:28 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 9a874d40fabd3bbe27761d1f664edaca SHA-1: ea9b2859e81f92fbd9e9ecc98432ba10b1630a61 SHA-256: a29744f7255e02fe8ed861d98b5cf535164497f159ce72374cee66b1f8ed036c
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

This PDF file exhibits characteristics of a link farm, containing numerous external URLs pointing to other PDF documents hosted on various domains. The heuristic 'PDF_SEO_LINK_FARM' strongly suggests this is an attempt to manipulate search engine results or redirect users to malicious content. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted, but the sheer volume of outbound links indicates a probable redirection or content-loading scheme.

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://oceansiderealtygroup.net/uploads/1/3/0/2/130270796/130270796.html#beginner+flute+scales
    • http://deeshomecookin.com/uploads/1/3/0/6/130639835/fofatekelexitus-bexujik.pdf
    • http://kfreund.com/uploads/1/3/0/6/130639948/2935390.pdf
    • http://chuckanutbaycottage.com/uploads/1/3/0/7/130738616/2482870.pdf
    • http://cleaningservisesuk.com/uploads/1/3/0/6/130639848/4566168.pdf
    • http://lovebugco.org/uploads/1/3/0/8/130814633/9695143.pdf
    • http://nyicnamatrimonial.com/uploads/1/3/0/5/130543945/dononawujosejuzewev.pdf
    • http://imaginedreamcreatetn.com/uploads/1/3/0/3/130313135/2f492687c3e2.pdf
    • http://shoptojp.com/uploads/1/3/0/4/130483443/xuteliborena.pdf
    • http://marksauter.com/uploads/1/3/0/2/130289523/cf882962712.pdf
    • http://turnerforpb.com/uploads/1/3/0/6/130639575/lajis-rawisakerajak-sisaninimume.pdf
    • http://theathleticallyspeaking.org/uploads/1/3/0/2/130288729/wipedonojugubes.pdf
    • http://birchtreepropertiesllc.com/uploads/1/3/0/6/130604039/4364706.pdf
    • http://sijitech.com/uploads/1/3/0/6/130620449/tupif.pdf
    • http://sandraoriley.com/uploads/1/3/0/2/130289209/gararomapugifod_pulipajenigixu.pdf
    • http://hollykeephotography.com/uploads/1/3/0/2/130289623/9471353.pdf
    • http://basketcasestheatre.org/uploads/1/3/0/7/130739180/difibute.pdf
    • http://mikeajames.com/uploads/1/3/0/4/130489742/sekumebapaju.pdf
    • http://pawsforacauseinvitational.com/uploads/1/3/0/7/130739564/2a9b83c5ef3.pdf
    • http://volusiaaudiologyllc.com/uploads/1/3/0/5/130550652/wabinizenudurulop.pdf
    • http://ratiothc.com/uploads/1/3/0/2/130272332/pajilumevexedu-nomibaj.pdf
    • http://alexluscombe.com/uploads/1/3/0/6/130621201/jimoborudi-mijizumiduvol-ronoseno.pdf
    • http://theartpeopleacademy.com/uploads/1/3/0/5/130588564/9d236ddfd460e.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_off000075cf.bin
02e9a1aa5da8e974ebb9f4e227e7e09f5b8ab6adf431173d9287696d468d1308		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75CF 8032 bytes

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