Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0996cd9631a9706…

MALICIOUS

PDF

27.1 KB Authoring application: SWFTools
MD5: b5a6f34761ab131ec96f8ada4ef72552 SHA-1: f1b3811fd39049d030a8e53b76730a3f140c298e SHA-256: a0996cd9631a97065e05f1672f897203dbabefff4b13c99ae2fb0fcdeaa19170
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded URLs pointing to other PDF files across various domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content, as suggested by the 'PDF_SEO_LINK_FARM' heuristic. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a malicious classification. No scripts were extracted from this sample, limiting the ability to determine specific payload delivery or execution methods.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://bas.hnhojjat.com/uploads/2020/01/29/2165061.pdf
    • http://natashagrover204.com/uploads/1/3/0/4/130476141/9073217.pdf
    • http://algonquinclub.com/uploads/1/3/0/4/130476068/6956990.pdf
    • http://alysebonline.com/uploads/1/3/0/5/130588501/figisuguxoxa_xosuxipidu.pdf
    • http://cassowaryday.org/uploads/1/3/0/6/130605351/merajodozi.pdf
    • http://aqzsystems.biz/uploads/1/3/0/3/130313010/pozaliduxelu.pdf
    • http://europeanfenestrationsystems.com/uploads/1/3/0/5/130538937/gelopitipuleg.pdf
    • http://beclaims.com/uploads/1/3/0/5/130590195/9496212.pdf
    • http://allamericandogexpo.com/uploads/1/3/0/4/130488101/130488101.html#cemetery+gates+tab+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000010d9.bin
decf82949c8334c6b78b6fdc16115312995c064b8ac61cb2a1022f7c6137436f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10D9 7244 bytes

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