Malicious PDF — malware analysis report

Static analysis result for SHA-256 1672626e44e13cc5…

MALICIOUS

PDF

47.7 KB Authoring application: OpenOffice.org
MD5: 42e8bd58b28f19b4f56dd8b7a7c9f890 SHA-1: ed6374a0ac16059ddb5344d138b81215242ad154 SHA-256: 1672626e44e13cc5e4f1ea388dd9837b93309d6d1f93ff9e4fdced23a8818973
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, as indicated by the 'PDF_SEO_LINK_FARM' heuristic. These links point to various PDF files hosted on different domains, suggesting a coordinated effort to manipulate search engine results or distribute malicious content. The ClamAV detection and ML classifier further support its malicious nature. No scripts were extracted, but the structure implies a phishing or SEO spam attack.

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://johnhenryfox.com/uploads/1/3/0/6/130605397/0edf97325.pdf
    • http://nomnomnatural.com.au/uploads/1/3/0/4/130476112/wukexup-wuledanimaluw-likageniro.pdf
    • http://mysticgardentw.com/uploads/1/3/0/4/130483773/wagomoruxo_sasuregolup_weminanajuz.pdf
    • https://borarativarutup.weebly.com/uploads/1/3/0/6/130604973/rejufepapuxurerujivu.pdf
    • http://vutiroj.splitvolgograd.ru/uploads/2020/01/27/xitedikeduloja.pdf
    • http://kicon-academic.com/uploads/1/3/0/6/130621196/3078445.pdf
    • http://idealica1.com/uploads/2020/01/28/zitonipagudadudepe.pdf
    • http://thehappygirlstore.com/uploads/1/3/0/6/130640225/130640225.html#avisynth+2.+57
    • http://www.adobe.com/).Noto
    • http://www.google.com/get/noto/http://www.adobe.com/type/This
    • http://scripts.sil.org/OFLNoto

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000011f4.bin
89c721e4120fd4843769fa934f12a5a6e7259e02fbf560a3ac4abeba79f2df6a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11F4 9080 bytes
font_01_sfnt_off000079c1.bin
631ce81b41b175f84193b496e6ee0e61f03b8690c1b3e03a6f8e929161e42fc6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x79C1 4976 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.