Malicious PDF — malware analysis report

Static analysis result for SHA-256 c829733f065f691d…

MALICIOUS

PDF

36.0 KB Authoring application: pstoedit
MD5: 08c8265f9440b2d4effacf2dc3695f91 SHA-1: baaef9e73fda9bfdddd29847a273a9fd1b5db860 SHA-256: c829733f065f691d38d01f1dbbfbd67fa37a401830baea41e4ebcb4963b1f6a5
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or distribution mechanism. ClamAV detected this as Pdf.Phishing.TtraffRobotInstall, and an ML classifier also flagged it as malicious. No scripts were extracted, and the document body was unreadable, but the sheer volume of external links points to a malicious intent, likely related to phishing or malware distribution.

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://newkids.co.uk/uploads/1/3/0/3/130324167/213244.pdf
    • http://wordwhomp.com/uploads/1/3/0/7/130739099/femaxuzex-xakodulanaj-vanaxunamofagij.pdf
    • http://juddmansee.net/uploads/1/3/0/8/130813658/c5182b31ac.pdf
    • http://www.momsandmiracles.co.za/uploads/1/3/0/4/130436080/4681653.pdf
    • http://saavihooks.com/uploads/1/3/0/5/130551856/xaranekowuvuvix.pdf
    • http://5thwoman.com/uploads/1/3/0/3/130313141/6119548.pdf
    • http://mta-sts.portlandbooksforcooks.com/uploads/1/3/0/6/130640139/jilor.pdf
    • http://countrychunkiecandle.com/uploads/1/3/0/5/130538922/7785968.pdf
    • http://ptinscottsdale.com/uploads/1/3/0/5/130551153/8b862110e677.pdf
    • http://www.tourottawatoday.com/uploads/1/3/0/7/130776233/e2ad565f520323d.pdf
    • http://stephaniehazel.com/uploads/1/3/0/6/130604067/junusonijali_laxexifo.pdf
    • http://pledgetogive.com/uploads/1/3/0/5/130551177/fejate.pdf
    • http://freelas.net/uploads/1/3/0/8/130814714/3658b29f55b5a.pdf
    • http://michaelrogers.info/uploads/1/3/0/6/130639977/6ff5bac.pdf
    • http://uptowngalleryoffranklin.com/uploads/1/3/0/7/130740124/486378.pdf
    • http://timtosuccess.com/uploads/1/3/0/3/130379232/2857906.pdf
    • http://polarlondon.com/uploads/1/3/0/7/130776049/vexizojigofus_dabewuwoveremi_nodegosel_dovoselupaxozut.pdf
    • http://wcd-dv5uqfy2.mgh-r.ch/uploads/1/3/0/6/130604303/130604303.html#phusion+polymerase+pcr+protocol
    • http://www.tourottawatod

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002eae.bin
2210f5959fe728d653757ced05bc2ba24b66be1a4351bd1fce72ee10b5d4a4a1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2EAE 8336 bytes

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