Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ee9e8e0bc7425a8…

MALICIOUS

PDF

38.0 KB Authoring application: Smallpdf Desktop
MD5: b94199e81b4a5130664c7bfd66c2d086 SHA-1: 47bc7549d0045f8392be8e3e6d6baf114ed64cfc SHA-256: 9ee9e8e0bc7425a8065f3bc0b3ad2207144c967765980335c1b614af684e325c
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded external links, identified as a link farm. This technique is often used for SEO manipulation or to redirect users to malicious sites. The ClamAV detection and ML classifier strongly indicate malicious intent, consistent with phishing or malware distribution. No scripts were extracted, but the embedded URLs are the primary indicators of compromise.

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://fionaborrelli.com/uploads/1/3/0/6/130604004/mavorixizobo-sukofa-dorir.pdf
    • http://sammyfit.net/uploads/1/3/0/5/130546497/150a97bc94239f.pdf
    • http://webdisk.forzegym.com/uploads/1/3/0/6/130639360/xapijuwujeber.pdf
    • http://classroomsnotcells.com/uploads/1/3/0/9/130969329/9481039.pdf
    • http://mustaren-farmarik.sk/uploads/1/3/0/6/130621643/79305.pdf
    • http://handsomeconnor.com/uploads/1/3/0/8/130814339/6898719.pdf
    • http://marcelwesdorp.nl/uploads/1/3/0/3/130313582/e46010f2a410.pdf
    • http://www.paintermedia.com/uploads/1/3/0/7/130776433/1467048.pdf
    • http://fetalcardio.org/uploads/1/3/0/2/130272332/343254e5632.pdf
    • http://www.cw-claims.co.uk/uploads/1/3/0/5/130539344/jatekexaz-rufifejon-fosesi.pdf
    • http://monteur-zimmer-gelsenkirchen.de/uploads/1/3/0/8/130813732/b84cab.pdf
    • http://calcorpinc.com/uploads/1/3/0/5/130545097/1592098.pdf
    • http://toldoshorta.com/uploads/1/3/0/6/130604191/8098764.pdf
    • http://edenrosepapery.com/uploads/1/3/0/6/130604940/d542e7a687d.pdf
    • http://goodolbite.com/uploads/1/3/0/9/130969231/8077871.pdf
    • http://breezypointdermatology.com/uploads/1/3/0/5/130588740/2290472.pdf
    • http://www.lyddair.co.uk/uploads/1/3/0/6/130639513/zuwiwu.pdf
    • http://n2everything.com/uploads/1/3/0/2/130273626/b4e5bd.pdf
    • http://likemash.com/uploads/1/3/0/5/130588307/vozizotunim-lutibel.pdf
    • http://briayanflores.com/uploads/1/3/0/2/130289365/431320.pdf
    • http://riverlodgervpark.com/uploads/1/3/0/6/130621072/sesabo.pdf
    • http://mail.brasbyconstruction.com/uploads/1/3/0/5/130550879/596548.pdf
    • http://fabricoftheearth.com/uploads/1/3/0/5/130588620/9604993.pdf
    • http://resolutereverse.com/uploads/1/3/0/5/130589056/nubupa.pdf
    • http://charmingworldtours.voyagerwebsites.com/uploads/1/3/0/6/130639244/130639244.html#free+printable+plane+tickets+template
    • http://n2everything.com/uploads/1/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000328b.bin
cf5b762a25794d843a114727309ea8dc60728deed61c79071f08598a727f3a96		 pdf-font-stream PDF embedded font (sfnt) at offset 0x328B 7472 bytes

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