Malicious PDF — malware analysis report

Static analysis result for SHA-256 66921158416948ae…

MALICIOUS

PDF

41.4 KB Authoring application: Mobipocket Creator
MD5: 825976dbc4056d3a6cae3d2657e784f8 SHA-1: 3e055934b42b745dce766682b8c226e97fb76229 SHA-256: 66921158416948ae90e344d1c5fc5d013fb4e6c4b002c4f462b0733f9be297cf
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of embedded links, identified as a PDF_SEO_LINK_FARM heuristic, suggesting a phishing or SEO manipulation tactic. The ClamAV detection and ML classifier further indicate malicious intent. While no scripts were explicitly extracted, the embedded links are the primary indicators of malicious activity, likely leading to further compromise or phishing pages.

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://northshoreengineeringny.com/uploads/1/3/0/2/130270843/9667911.pdf
    • http://montealegrefarm.com/uploads/1/3/0/5/130540037/3571486.pdf
    • http://turagent.site/uploads/1/3/0/6/130621533/nisufigoxipebaguxuv.pdf
    • http://sydneydudley.com/uploads/1/3/0/3/130313336/9195341.pdf
    • http://brutalproxies.com/uploads/1/3/0/2/130289796/xixexixilemare_mifeneb_sifijowolaso_bevupanuwij.pdf
    • http://cashopros.com/uploads/2020/01/29/1711934.pdf
    • http://wumujuxe.kickfastservice.online/uploads/2020/01/29/5c0a617f67b9e97.pdf
    • http://theclearingfarm.com/uploads/1/3/0/5/130589014/7942005.pdf
    • http://humanstellstories.com/uploads/1/3/0/2/130289400/juvimukuxon-rigefa.pdf
    • http://atozadventures.co.uk/uploads/1/3/0/6/130605075/9621548.pdf
    • http://chuckwilkins.com/uploads/1/3/0/7/130776445/130776445.html#compare+exploratory+and+descriptive+research+designs

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001268.bin
b938dd3934fe0ad2c8b191bf22568dd3930b86792ffb4a86a0386d712843a2ee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1268 7720 bytes

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