Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee25749ecc024d5a…

MALICIOUS

PDF

44.7 KB Authoring application: Poppler-utils
MD5: 0aa682261718e6139d83c6bb6ef64ae0 SHA-1: 53a7f827845277ec6914562b5e79a28265a236e9 SHA-256: ee25749ecc024d5a3a726296eab48c7824ee46b2a9861ffec80de434361f3ff7
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, pointing to various domains. The document body, while partially corrupted, mentions 'Yeezy 500 salt size guide' and includes several URLs, suggesting a lure to redirect users to potentially malicious websites. ClamAV also detected this as Pdf.Phishing.TtraffRobotInstall, further indicating a phishing or redirection attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://artsbasedtherapy.org/uploads/1/3/0/4/130490687/62b854a0.pdf
    • http://nateandamy.com/uploads/1/3/0/6/130620391/9885595.pdf
    • http://nicksportsmassagetherapy.com/uploads/1/3/0/2/130291507/zinobi.pdf
    • http://miseniorcenters.com/uploads/1/3/0/5/130546294/gasetegujulesomimup.pdf
    • http://simplicityparentingwithmary.com/uploads/1/3/0/3/130323469/130323469.html#yeezy+500+salt+size+guide

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001054.bin
9da24b1340d38c9ea2ea95ad163e4981b3534906014b7f3bb1d4643482d237a6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1054 9276 bytes
font_01_sfnt_off00006776.bin
c7143368894299a997ed09f05024df052d964886bc902d598de4a6791c50751f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6776 10292 bytes

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