Malicious PDF — malware analysis report

Static analysis result for SHA-256 94fa30719a92c775…

MALICIOUS

PDF

34.7 KB Authoring application: PDF Studio
MD5: c02c97c6ec4df20a90ebaefb0a3f74d3 SHA-1: 7d00a41e60465ad285cfc523b359b48ed2fb4754 SHA-256: 94fa30719a92c7752c31f48e81fa0e2bcd24636bf4819fe9660cf4ab6454def6
150 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to other PDF files on various domains. This is indicative of a link farm used to distribute malicious content or conduct phishing. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a phishing or traffic redirection intent. 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://nicoleedwardslimited.com/uploads/1/3/0/2/130272428/pesena.pdf
    • http://menusie.com/uploads/1/3/0/3/130323322/8976494.pdf
    • http://ja-sauer.family/uploads/1/3/0/3/130379653/3277897.pdf
    • http://procreditsol.com/uploads/1/3/0/4/130483507/7600791.pdf
    • http://replenishmysoul.com/uploads/1/3/0/2/130289772/ef28ad3d8679.pdf
    • http://annieshandmadesweets.com/uploads/1/3/0/6/130620232/a10de.pdf
    • http://globalhealthapps.com/uploads/1/3/0/7/130739564/8673433.pdf
    • http://shun.city/uploads/1/3/0/3/130323315/ca57ee1b58ee670.pdf
    • http://firstway.ca/uploads/1/3/0/6/130620222/tamav_sobaxivet_xiloxuwawe.pdf
    • http://elpacifico2hoa.com/uploads/1/3/0/7/130739558/7957902.pdf
    • http://cryptothermie.com/uploads/1/3/0/4/130477633/239021.pdf
    • http://giantsizedannual.com/uploads/1/3/0/5/130551986/fomitamozef-vasugoje.pdf
    • http://shutupimgay.com/uploads/1/3/0/8/130815351/nezop-zofoz-wezuro-xakuvajej.pdf
    • http://curiousconversations.org/uploads/1/3/0/7/130740266/7c0643125c9d3.pdf
    • http://www.helpmehaveababy.co.uk/uploads/1/3/0/8/130873899/1afbe00af.pdf
    • http://seafoodfestivalgiveaways.com/uploads/1/3/0/5/130541209/130541209.html#t+distribution+table+to+find+critical+values

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ed7.bin
2647b3480d7d841ca608f6f0685b89792a8fdf829ac4edb5def9ab33e57c4a7f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2ED7 7204 bytes

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