Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff44399bef9bb33b…

MALICIOUS

PDF

43.2 KB Authoring application: Serif PagePlus
MD5: f5af3307ac8f7eaf908afaca61409877 SHA-1: 44e10df2ed3a1dd6a23f567c5d6959b516da7174 SHA-256: ff44399bef9bb33b61eb30daf9c9933db744bcc8e956c37e545f2b3ca4ac2052
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external websites, a technique often used for SEO manipulation or to redirect users to malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, specifically identified as 'Pdf.Phishing.TtraffRobotInstall'. The primary attack pattern involves leveraging a link farm to distribute or obscure malicious destinations.

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://beautifulblcs.info/uploads/1/3/0/5/130543318/jexatezetew-dumev.pdf
    • http://cut50summit.org/uploads/1/3/0/8/130813731/7be67.pdf
    • http://www.nuclearproclean.com/uploads/1/3/0/6/130640047/nusezurezowizizugobu.pdf
    • http://www.jakehaase.com/uploads/1/3/0/4/130478314/fc376d854539e.pdf
    • http://mta-sts.mx.jwardcontractors.com/uploads/1/3/0/4/130491699/tariguzurivenin.pdf
    • http://zenithenergy.com.au/uploads/1/3/0/8/130873941/9f707cc116.pdf
    • http://www.johnscottrichardson.com/uploads/1/3/0/7/130739982/norarupibawiligezu.pdf
    • http://thelayeredcrepe.com/uploads/1/3/0/4/130435745/jasodemesagepak.pdf
    • http://velawedding.com/uploads/1/3/0/3/130312986/4782941.pdf
    • http://emergebydesign.org/uploads/1/3/0/7/130740483/57c7c43e32c.pdf
    • http://augustinelab.org/uploads/1/3/0/7/130738831/1078297.pdf
    • http://suderve.com/uploads/1/3/0/2/130289482/nefiluzetiseku-wubojobiguvote-dogigigofugu-mowopewuxoz.pdf
    • http://mountedcharger.com/uploads/1/3/0/6/130621926/dazatawiwexize.pdf
    • http://plebmc.net/uploads/1/3/0/8/130874219/0e240a399404.pdf
    • http://nw-churchofchrist.com/uploads/1/3/0/4/130435811/8208418.pdf
    • http://webdisk.callyfarrcounselling.ca/uploads/1/3/0/8/130874328/3873626.pdf
    • http://thejoyfulchildfoundation.com/uploads/1/3/0/3/130379627/jamuvanovazinukaled.pdf
    • http://mastermymath.com/uploads/1/3/0/4/130483447/4730148.pdf
    • http://seo-columbus.com/uploads/1/3/0/4/130483426/5324854.pdf
    • http://drconsultinginc.com/uploads/1/3/0/6/130639285/4173573.pdf
    • http://alpha.ph-eiti.org/uploads/1/3/0/4/130488312/fe8debde64.pdf
    • http://run--happy.com/uploads/1/3/0/3/130323174/vevurori.pdf
    • http://oaklandzendo.org/uploads/1/3/0/2/130288775/kerixomogawirosudeb.pdf
    • http://hostmaster.helenentwistle.com/uploads/1/3/0/2/130270921/130270921.html#ethnographic+museum+zagreb+croatia
    • http://www.johnscottrichardson.com/uploads/1/3/0/7/130739982/norar

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004680.bin
f2be18edc538082b6d14ff48503ada4aff2c91f29ff3d521e9202ff5120fdebf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4680 8620 bytes

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