Malicious PDF — malware analysis report

Static analysis result for SHA-256 0bf9758fb6a6244b…

MALICIOUS

PDF

38.3 KB Authoring application: Nitro PDF
MD5: d3067b524d706a4eae1497d8dad7b146 SHA-1: 6f715de470f354c84b71bd6a0f7f06d0e8d29b98 SHA-256: 0bf9758fb6a6244bcf61e8b9451abf7c4f53592862eba9ab00d498056bc2d9ee
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 hosted on various domains, as indicated by the PDF_SEO_LINK_FARM heuristic. ClamAV also detected this file as Pdf.Phishing.TtraffRobotInstall-7605656-0. The document body contains seemingly random text and mentions 'Icici direct cfp study material pdf', which is likely a lure to make the document appear legitimate. The primary function appears to be directing users to a network of linked PDFs, potentially for SEO spam or to serve as a distribution point for further malicious content.

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://magyarmale.net/uploads/1/3/0/2/130271030/zozomi.pdf
    • http://nsfaphs.org/uploads/1/3/0/6/130620678/2077210.pdf
    • http://xatimofonu.b-les-bel.su/uploads/2020/01/28/vaduf_tulopepenim.pdf
    • http://nozomiomote.weebly.com/uploads/1/3/0/4/130436136/bufewa.pdf
    • http://oceanafamilyliteracy.org/uploads/1/3/0/6/130604618/wusageziwuwok.pdf
    • http://treehousehashomes.com/uploads/1/3/0/5/130590413/ca071c.pdf
    • http://autumnmoonphotography.com/uploads/1/3/0/5/130590273/2720261.pdf
    • http://5pointauto.com/uploads/1/3/0/4/130483178/130483178.html#icici+direct+cfp+study+material+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000114b.bin
b440e8a0418be9c9e7a9877141f899ec9aefdc150599d8e018d0aa91d0a428a2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x114B 8092 bytes

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