Malicious PDF — malware analysis report

Static analysis result for SHA-256 92554f3d0603b952…

MALICIOUS

PDF

31.8 KB Authoring application: Solid Converter PDF
MD5: a30e65a6a228cb3db2766627bee2dea2 SHA-1: c60916e06e881a48aa8f167e291aec3a385bd71c SHA-256: 92554f3d0603b95206a6793f4b578bb1456a8905a401993e80fd1cc9b5816ada
150 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs pointing to external PDF documents. This behavior is indicative of SEO spam or a link farm designed to distribute malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a malicious classification. No scripts were extracted, limiting the ability to determine specific payload delivery mechanisms.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://myrabi.com/uploads/1/3/0/3/130379248/lajokabaron.pdf
    • http://ninjagoartoftheninja.com/uploads/1/3/0/2/130288486/5668577.pdf
    • http://nokr.nl/uploads/1/3/0/4/130483507/dee68e81978.pdf
    • http://sonpeare.com/uploads/1/3/0/5/130551487/7551239.pdf
    • http://waffledaze.com/uploads/1/3/0/5/130588225/b422db3b4863.pdf
    • http://nzbcool.com/uploads/1/3/0/3/130313294/wozise-laxajo-rijalujalozasuj-tuzewuwutob.pdf
    • http://millyproducts.com/uploads/1/3/0/2/130272472/80c4ae6779e4.pdf
    • http://writing4content.com/uploads/1/3/0/4/130435929/gofekejurozox.pdf
    • http://misbailes.com/uploads/1/3/0/2/130271087/130271087.html#humraaz+movie+song++pagalworld

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001173.bin
880181edc6791277188e521b1f83bc004594743e8949c865e3736556519e87a5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1173 8016 bytes

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