Malicious PDF — malware analysis report

Static analysis result for SHA-256 9db72a92049908bc…

MALICIOUS

PDF

36.2 KB Authoring application: Solid Converter PDF
MD5: ebae86576f88ecbf75cd43b9577c9703 SHA-1: 3b19ca0478ef76da398406c28b32f71cad662f0c SHA-256: 9db72a92049908bcfbc889c9439f531ffd7e82c85b16cae93a4955601b103352
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF contains a large number of embedded links to other PDF files, a technique commonly used for SEO poisoning and phishing lures. The ClamAV detection and ML classifier strongly indicate malicious intent, specifically identified as 'Pdf.Phishing.TtraffRobotInstall'. The document body, though heavily obfuscated, references 'Adobe acrobat dc edit pdf tutorial', suggesting a pretext to trick users into downloading further malicious content. The primary IOC is the dominant host 'psrglobal.net' which hosts multiple linked PDFs.

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://psrglobal.net/uploads/1/3/0/4/130488312/vetogamanisej-taweg.pdf
    • http://catholicnewmancenterlssu.org/uploads/1/3/0/4/130488220/mogasik.pdf
    • http://vuxures.achdziewczyny.site/uploads/2020/01/28/wijigotonililodut.pdf
    • http://kffootandankle.com/uploads/1/3/0/6/130604093/3d92f0f.pdf
    • http://alexabowman.com/uploads/1/3/0/5/130588763/f68d9929130d39.pdf
    • https://wexikedot.weebly.com/uploads/1/3/0/2/130271226/lagafobokaloru-gusofosup-lasutigoni.pdf
    • https://kowijokadivobi.weebly.com/uploads/1/3/0/4/130488662/9691273.pdf
    • http://pupato.thewunderland.website/uploads/2020/01/29/nikukibapokik.pdf
    • http://edgelandscapeandmaintenance.com/uploads/1/3/0/6/130603995/130603995.html#adobe+acrobat+dc+edit+pdf+tutorial

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000011f9.bin
72b26a195737fdc0cc796a37d5958e85102ef2aab2658d15e18652862048ee94		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11F9 7972 bytes

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