Malicious PDF — malware analysis report

Static analysis result for SHA-256 72631176b468804c…

MALICIOUS

PDF

42.7 KB Authoring application: Adobe PDF Library 9.0
MD5: b95f00e02570c30997b4ce44d50d6e94 SHA-1: a80d19b9448e6c9d7279927e016657c0b93afda9 SHA-256: 72631176b468804c02b7317a35edbe69731ab909432e2bd3800a7738969b1a53
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, a technique often used for SEO spam or to redirect users to malicious sites. ClamAV detected this file as 'Pdf.Phishing.TtraffRobotInstall-7605656-0', indicating a phishing or traffic redirection purpose. The embedded URLs are the primary indicators of this malicious activity.

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://mitchellwenkus.com/uploads/1/3/0/6/130620826/655c12d53b5389.pdf
    • http://carolynwiese.com/uploads/1/3/0/4/130489039/vejanofa-pirenit.pdf
    • http://elenafilip.com/uploads/1/3/0/7/130739225/7bd23d870e1.pdf
    • http://warrenbsmith.org/uploads/1/3/0/4/130476423/6c93e26ad1ae1a.pdf
    • http://ncballcounseling.com/uploads/1/3/0/6/130603941/2585721.pdf
    • http://harveyjettmusic.com/uploads/1/3/0/4/130483520/4733057.pdf
    • http://acouturelife.com/uploads/1/3/0/7/130739991/130739991.html#malignant+pleural+mesothelioma+treatment+guidelines

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001305.bin
ec7fab28c62d7498fbdc515feafc2d1bd2f3d7299489cb57c5f27065b316f140		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1305 8776 bytes

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