Malicious PDF — malware analysis report

Static analysis result for SHA-256 74889ecb9c545ab3…

MALICIOUS

PDF

34.5 KB Authoring application: SWFTools
MD5: bca95835e368900b90ad351c839b3d83 SHA-1: 351424e7301ad6fb2edaeb48152fa1b74c904ed9 SHA-256: 74889ecb9c545ab3f8d12f27783983d97f10ea5c2c7bd789fa61dafd83c2d4bb
150 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a large number of embedded links to external PDF files hosted on various domains. This behavior is indicative of a link farm, often used for SEO manipulation or to distribute malicious payloads. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a malicious intent. No scripts were extracted from this sample, and the document body content is largely unreadable due to encoding issues.

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://ericacauseyphotography.com/uploads/1/3/0/4/130489933/zewosev-jomupe-xebifudaneketi-silige.pdf
    • http://www.foodishealth.com.au/uploads/1/3/0/2/130289282/5395905.pdf
    • http://diamondsupplements.com/uploads/1/3/0/4/130483629/33d9e6ae1.pdf
    • http://www.stjosephsbroomhouse.org.uk/uploads/1/3/0/6/130640236/xegubida.pdf
    • http://www.gracemd.org/uploads/1/3/0/2/130272631/1a49f4e2.pdf
    • http://athenahighlibrary.com/uploads/1/3/0/5/130588230/5405667.pdf
    • http://medrounds.net/uploads/1/3/0/6/130604433/798423.pdf
    • http://dgiindex.org/uploads/1/3/0/4/130476564/4d6518a.pdf
    • http://americanbeachphoto.com/uploads/1/3/0/7/130776363/xavupe.pdf
    • http://hawkershack.com/uploads/1/3/0/5/130540405/zivebiw_kuwedikesi.pdf
    • http://www.thebuckdown.com/uploads/1/3/0/5/130588428/ee22605393a.pdf
    • http://rainbowplaydk.com/uploads/1/3/0/2/130272886/soxexorokebepabif.pdf
    • http://webdisk.missionexcell.com/uploads/1/3/0/3/130313173/revuzofutovowaw.pdf
    • http://moodlabnewlife.nl/uploads/1/3/0/2/130289655/130289655.html#action+speaks+louder+than+words+proverb+explanation

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ebd.bin
28da598736993e19b77e638c19b088657df33a65710fcce56a9c3c7108f0927d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2EBD 7780 bytes

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