Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d598f7f2583c630…

MALICIOUS

PDF

49.4 KB Authoring application: Solid Converter PDF
MD5: 9ac5e9758e7d81f8a846abf3a39541e3 SHA-1: 32b993319b87707d9d48c8f526314a46dc6d1d05 SHA-256: 6d598f7f2583c6308ac6f4b5d2f780e76736d63ccab56b40dde5ebcf88df9c7e
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links to other PDF files, a technique often used for SEO manipulation or to distribute further malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, specifically identified as phishing. No scripts were extracted, but the sheer volume of external links suggests a coordinated effort to redirect users, likely to phishing sites or malware downloaders.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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://www.kosmobullies.com/uploads/1/3/0/7/130740258/rodotijegujig.pdf
    • http://loetaeducation.com/uploads/1/3/0/6/130604269/vujepi_wenonixepalutu.pdf
    • http://dazluq.com/uploads/1/3/0/2/130273762/movupex.pdf
    • http://redshiftwinery.com/uploads/1/3/0/7/130738909/jebewevuzol.pdf
    • http://reachfullpotential.org/uploads/1/3/0/2/130273625/jufon_lutuxume.pdf
    • http://www.changingstep.com/uploads/1/3/0/7/130739174/vaxanub-zezapujupawegep-pepetexojavura-xixobuviv.pdf
    • http://frantasautocare.com/uploads/1/3/0/9/130969154/3189243.pdf
    • http://www.adagedanceanddrama.com/uploads/1/3/0/3/130323755/4221180.pdf
    • http://hbcwetaskiwin.com/uploads/1/3/0/7/130775346/gomejufi.pdf
    • http://www.scorpioneofficial.com/uploads/1/3/0/8/130874473/vomuxagevoka.pdf
    • http://craftsmanmarketing.com/uploads/1/3/0/4/130483513/zomalapa.pdf
    • http://delbertsonrealty.com/uploads/1/3/0/6/130620475/9412006.pdf
    • http://redneckfest.org/uploads/1/3/0/2/130271023/kudaxom.pdf
    • http://mkecabinets.com/uploads/1/3/0/5/130588937/tavoreb.pdf
    • http://5somatfit.com/uploads/1/3/0/6/130604413/8005562.pdf
    • http://calwestracking.com/uploads/1/3/0/8/130814534/weferu_dutob_nujiwag.pdf
    • http://indi-vibes.com/uploads/1/3/0/4/130492441/rodoxaninagukujad.pdf
    • http://lanechnge.org/uploads/1/3/0/8/130873962/1551893.pdf
    • http://carolinapumpworks.com/uploads/1/3/0/6/130605393/e2264.pdf
    • http://spiralling-in.com/uploads/1/3/0/8/130873783/tebabi.pdf
    • http://sonoranshadows.com/uploads/1/3/0/6/130605493/5680059.pdf
    • http://planeandsimple.ca/uploads/1/3/0/5/130541743/sajuf.pdf
    • http://mta-sts.mail.brianharstine.com/uploads/1/3/0/6/130604405/xanazivi_napigim_tagutibotoburu_vavamasesufuzo.pdf
    • http://goodgirlgonesingle.com/uploads/1/3/0/7/130776678/zexexowo-nixovivuradufo.pdf
    • http://donovanhendrick.com/uploads/1/3/0/6/130605422/jivebubisixigiba.pdf
    • http://adsl-63-204-18-42.benefitplans.org/uploads/1/3/0/6/130620560/130620560.html#calgary+als+and+motor+neuron+disease+clinic

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005ab5.bin
eb91eb06fc84f5ef88f65d2dc1c516dd2594b29110145b53f9dc7043cebed4af		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5AB5 8856 bytes

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