Malicious PDF — malware analysis report

Static analysis result for SHA-256 c962b3c34b318ab5…

MALICIOUS

PDF

38.1 KB Authoring application: Inkscape
MD5: 5848716f7c5ebcd1090c80124a0bef9f SHA-1: a26776c88a7c9e241535f85fd15624832cfb6352 SHA-256: c962b3c34b318ab544eb5fe8c2b91ab2714e00dc5ee3c16aab222638423c7ddd
120 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various domains. This suggests a link farm or SEO poisoning attack, potentially used to drive traffic or host malicious content. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a malicious intent related to traffic redirection or phishing. No scripts were extracted from this sample.

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://tacodelcampus.com/uploads/1/3/0/7/130739185/03dd4fb6096d.pdf
    • http://914stockton.com/uploads/1/3/0/4/130476091/2959775.pdf
    • http://ux-consulting.co/uploads/1/3/0/2/130289797/sipimosin-buduzubuta-fekaxegutomuno.pdf
    • http://www.serenahallceramics.com/uploads/1/3/0/5/130589297/sivikotoloj.pdf
    • http://supremespeech.com/uploads/1/3/0/6/130603853/c981f4.pdf
    • http://unrealin.com/uploads/1/3/0/6/130604520/gofanoxexamuvujamar.pdf
    • http://buildwrightjoinery.com/uploads/1/3/0/5/130543261/aa54282d40be.pdf
    • http://hollyknoxrhame.com/uploads/1/3/0/6/130620624/redagodozonux.pdf
    • http://www.xplorcolombia.com/uploads/1/3/0/5/130544089/fc0414.pdf
    • http://fancyfeatheredfarm.com/uploads/1/3/0/6/130604408/wanetosikusewe_kofofijafeto_devuxupajegetel.pdf
    • http://cpconcertsociety.com/uploads/1/3/0/2/130287939/9484645.pdf
    • http://studiocitynorth.com/uploads/1/3/0/5/130550986/lamexate.pdf
    • http://mostlytech.com/uploads/1/3/0/5/130589251/6cadb659.pdf
    • http://simplyberger.com/uploads/1/3/0/6/130604515/7838800.pdf
    • http://www.casaovelha.com/uploads/1/3/0/8/130874077/dejak_kovupuvevuv_moborakuzitasop_zotizawafijomu.pdf
    • http://everestdobie.com/uploads/1/3/0/9/130968958/130968958.html#short+stories+in+english+for+intermediate+level

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003999.bin
8d0509a3eb7950d8d1a564465623ad1e98cfd79c62977e5ab68e542f0517ff11		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3999 8120 bytes

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