Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9b3f3020cd20717…

MALICIOUS

PDF

36.3 KB Authoring application: Mobipocket Creator
MD5: 008df31942571fefd3675b2c4cd57aa2 SHA-1: ae7d3e46c5282521f3b1ade64e90ea847245a49c SHA-256: e9b3f3020cd2071799d8a735a5d063fa11a852b8204edb505aaa449d590bdbd4
150 Risk Score

Malware Insights

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

The PDF was flagged by multiple heuristics, including a critical PDF_SEO_LINK_FARM rule, indicating a large number of external links. The ML classifier also assigned a high probability of maliciousness. The embedded URLs point to various domains, all hosting PDF files, suggesting a link farm designed to redirect users to potentially malicious content. The document body, though partially corrupted, contains text related to downloading a PDF, reinforcing the lure.

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://nikhitavaddineni.com/uploads/1/3/0/4/130483290/vuxowe.pdf
    • http://acot.website/uploads/1/3/0/6/130621137/5719189.pdf
    • http://silkroadsourcing.co/uploads/1/3/0/6/130640081/wojopato.pdf
    • http://alexmoskowitz.com/uploads/1/3/0/2/130291475/maxidobe-fimuvumaxi.pdf
    • http://baystategalvanizing.com/uploads/1/3/0/6/130622013/d5925bc54.pdf
    • http://dipuju.binancedex-giveaway.com/uploads/2020/01/29/1951921.pdf
    • http://colddiamnd.com/uploads/1/3/0/2/130292014/130292014.html#dsm+v+pdf+espa%C3%B1ol+completo+descargar+gratis

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000110e.bin
efa77f9ba20c5e7caa9df576a625472cad31251f701178601d84d0ac63741dbd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x110E 8828 bytes

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