Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ad493aa929e9e40…

MALICIOUS

PDF

39.1 KB Authoring application: Adobe PDF Library 9.0
MD5: 7723c8922803fa9ab1bf80503f77cc35 SHA-1: 02b3d9cba15050787f01c50c6923fd40d987abd4 SHA-256: 6ad493aa929e9e40584ecf942fac4f24647e2043349b201b3bb41e2a959a154e
152 Risk Score

Malware Insights

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

The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various domains. These links are likely intended to redirect the user to malicious content or phishing sites. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious redirection intent. While no scripts were explicitly extracted, the nature of the link farm suggests a potential for JavaScript execution or other exploit vectors within the PDF structure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://notesfromearth.co.uk/uploads/1/3/0/2/130289242/xegikigik-dafesotilofegij.pdf
    • http://atlantadrummethod.com/uploads/1/3/0/3/130323632/sopasagukorugo_paletixa.pdf
    • http://ifossicker.com/uploads/1/3/0/2/130289577/sapim.pdf
    • http://zoteye.com/uploads/1/3/0/2/130291485/8395914.pdf
    • http://physicianmummyuk.com/uploads/1/3/0/4/130477455/d5dba2e2ee79.pdf
    • http://djspizza1.com/uploads/1/3/0/7/130776027/130776027.html#acog+mammography+recommendations+2016

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000010ba.bin
1b43c10a28ce725db3389ec0c6dc695128eb203fdb54b1e5f712879bb6ba0d4f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10BA 8636 bytes

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