Malicious PDF — malware analysis report

Static analysis result for SHA-256 60530e1b4219aa79…

MALICIOUS

PDF

70.0 KB Authoring application: Poppler-utils
MD5: b6cb316e50457d12b3a8e5a17e07ef38 SHA-1: 983996cdb7872adf82f8979579415cb3fbb1669f SHA-256: 60530e1b4219aa79761549547a73df23db48096aefeca8727dd7fa13573fa34d
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by ClamAV as Pdf.Phishing.TtraffRobotInstall and a machine learning classifier indicated a high probability of maliciousness. The heuristic PDF_SEO_LINK_FARM indicates the presence of a mass external PDF link farm, with the first URL being http://moorereplacements.net/uploads/1/3/0/6/130604307/e2ecc7609.pdf. The document body contains a mix of seemingly random characters and text related to 'Wattpad love story english summary', suggesting a deceptive lure. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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://moorereplacements.net/uploads/1/3/0/6/130604307/e2ecc7609.pdf
    • http://resolute-sf.com/uploads/1/3/0/6/130620854/689658.pdf
    • http://3plids.com/uploads/1/3/0/2/130271067/wibipukepixufer.pdf
    • http://woodlandstuition.com/uploads/1/3/0/6/130621870/130621870.html#wattpad+love+story+english+summary
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicense

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001085.bin
7e7ee3204c573b120aa46b60e7ad546127c23aee6b147016525a525cf5f5ef4c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1085 9384 bytes
font_01_sfnt_off000044bb.bin
abbbaccff28f2820a57a3519245defca80bba4bf61a6060196bc30f612096454		 pdf-font-stream PDF embedded font (sfnt) at offset 0x44BB 2860 bytes

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