Malicious PDF — malware analysis report

Static analysis result for SHA-256 671419332cee0c26…

MALICIOUS

PDF

44.8 KB Authoring application: PDFedit
MD5: ba869a5ca15d9eef07eb5ebf7b640233 SHA-1: be3cf533bf6a5ef450a001a1793d881a2a636142 SHA-256: 671419332cee0c2603793e9fd811a243b1b51fdefdfaa37efeababcede9a6ece
152 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to distribute further malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it acts as a gateway to other malicious resources.

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://cobourgfarmersmarket.com/uploads/1/3/0/2/130287988/zoxajuvidina.pdf
    • http://professionalmalevoiceoverservice.com/uploads/1/3/0/4/130488975/b563dcc.pdf
    • http://getadvantage.in/uploads/1/3/0/6/130604098/pedir-jopukalexelivu.pdf
    • http://biding-my-time.com/uploads/1/3/0/5/130538937/ziboxesep-nubamu-zomijani.pdf
    • http://badassride.com/uploads/1/3/0/5/130588263/bae27a8b41e00e.pdf
    • http://nataliamcabrera.com/uploads/1/3/0/7/130739006/tudogukom-sujel.pdf
    • http://belfastdrivered.com/uploads/1/3/0/6/130621673/9e08f.pdf
    • http://miami.momotombochocolatefactory.com/uploads/1/3/0/7/130739375/130739375.html#gout+in+foot+with+normal+uric+acid+levels
    • 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_off00001175.bin
f905cb4037440c4201e3d52e844972fbb2515bc97e7d3c445d03c67298a9eba3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1175 8004 bytes
font_01_sfnt_off000074b0.bin
41d5c9cb4d60b7530e3cfd93a78efd430fe179aa57a8296e74fb8a971da4b0ee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74B0 2600 bytes

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