Malicious PDF — malware analysis report

Static analysis result for SHA-256 5fa2fea7dc14f59c…

MALICIOUS

PDF

42.5 KB Authoring application: Scribus
MD5: 014c9e70203dff7431375a47827b504a SHA-1: eea60e951271fdfc13a8d23a6b49d6e467f23f56 SHA-256: 5fa2fea7dc14f59cc3b16c436441e9db851524957c372d9075fac2cbde027e11
152 Risk Score

Malware Insights

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

The PDF contains a large number of external links to other 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. While no scripts were directly extracted, the heuristic 'PDF_SEO_LINK_FARM' suggests the document's primary purpose is to redirect users to a network of potentially malicious URLs.

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://500palisades.com/uploads/1/3/0/6/130620168/beb57.pdf
    • http://mh-aero.de/uploads/1/3/0/2/130274315/wesupezexixebejozufe.pdf
    • http://anonymousmanifesto.com/uploads/1/3/0/3/130323934/kafipomomas-wurel.pdf
    • http://ntechnologyinc.com/uploads/1/3/0/2/130272616/ab7e40.pdf
    • http://asylumcollectables.com/uploads/1/3/0/5/130539203/zepivamoxuvijat.pdf
    • http://dancinggoatsanctuary.com/uploads/1/3/0/6/130639656/130639656.html#debenture+account+in+balance+sheet

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000010e4.bin
1a55dbcd675e02fb585584639aadcec63713b2e72af2111bdc8d90f2f6d23c1c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10E4 9396 bytes

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