Malicious PDF — malware analysis report

Static analysis result for SHA-256 5971e6bddd3ce0db…

MALICIOUS

PDF

45.1 KB Authoring application: PDFedit
MD5: c2fedd09d3d4744aee18a67f6b9cd1a2 SHA-1: c09537e6bc3905134e7e1d10f9bf888ef8682c2d SHA-256: 5971e6bddd3ce0db4c9f8f274e8a440b6f1edb9dcbc36c33af30ce70ffe1fd85
150 Risk Score

Malware Insights

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

The PDF was flagged by multiple heuristics, including a critical finding for a link farm containing 31 external PDF links. The ML classifier also assigned a high probability of maliciousness. The embedded URLs suggest a phishing or redirection campaign, aiming to drive traffic to numerous other PDF documents hosted across various domains. No scripts were extracted from this sample.

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.
  • 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://joinnextlevel.com/uploads/1/3/0/6/130620185/970ba8deab31.pdf
    • http://tablorasa.com/uploads/1/3/0/6/130604373/pikuxakabaxebega.pdf
    • http://miaaindustries.com/uploads/1/3/0/4/130478602/6331286.pdf
    • http://hostmaster.mx.simplyrealestate.net/uploads/1/3/0/7/130739802/2bb54ef23.pdf
    • http://juneberridesigns.com/uploads/1/3/0/8/130874488/gilus-tijafagige.pdf
    • http://supfishgear.com/uploads/1/3/0/6/130603684/1250246.pdf
    • http://summitdoulacare.com/uploads/1/3/0/5/130590357/bobona.pdf
    • http://janelleevelyn.com/uploads/1/3/0/6/130639032/5782467.pdf
    • http://kinetiqfit.com/uploads/1/3/0/4/130483074/suzatajow.pdf
    • http://veraspencer.com/uploads/1/3/0/6/130603842/paraf.pdf
    • http://www.chelseakinser.com/uploads/1/3/0/7/130776516/xovezajaduzewigejos.pdf
    • http://acarothers.com/uploads/1/3/0/5/130538842/xapixiberiseg.pdf
    • http://bestieboxboutique.com/uploads/1/3/0/7/130776886/nixubaxa_watopevanajede.pdf
    • http://budorange.com/uploads/1/3/0/2/130289789/775959.pdf
    • http://hostmaster.leef.org.uk/uploads/1/3/0/5/130551671/tixigezinemifuwub.pdf
    • http://xprzy.nl/uploads/1/3/0/3/130323506/af6bb363885.pdf
    • http://norwichmonsters.com/uploads/1/3/0/6/130639335/tudura.pdf
    • http://77yhi.bpmtc.com/uploads/1/3/0/6/130621800/130621800.html#%C3%A7al%C4%B1ku%C5%9Fu+roman%C4%B1+%C3%B6zeti+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005299.bin
95aecdc20c2bed7921a9c263ed8e5f30da48ab6b13be4a57e076e831b3cdafdb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5299 9860 bytes

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