Malicious PDF — malware analysis report

Static analysis result for SHA-256 9942517c9d8a0c15…

MALICIOUS

PDF

37.0 KB Authoring application: LibreOffice Draw
MD5: d36b4c8ea227269dbe6f610e94a5b1a1 SHA-1: 74f20c48546a2fc308c7175f05fcbae8fc175fd0 SHA-256: 9942517c9d8a0c1502ddf9ca4614a3b0b98ffc83dc1324c90413d70df7445af9
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, forming a link farm designed to redirect users to malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, specifically identified as phishing. The document body, though obfuscated, contains references to game downloads and includes the same URLs found in the link farm, reinforcing the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://pezor.bestperles01.fun/uploads/2020/01/28/5313241.pdf
    • http://minerhosting.at/uploads/1/3/0/2/130289295/376780.pdf
    • http://3dmarinerswalk.com/uploads/1/3/0/5/130551941/dofabejuxas-temaliberezif-puwav-ripawitidejenej.pdf
    • http://newarkvalleychamber.com/uploads/1/3/0/3/130313536/4117311.pdf
    • http://tppg.co.uk/uploads/1/3/0/2/130271214/84123b5b893e9.pdf
    • http://northeastmaterials.com/uploads/1/3/0/4/130490399/5265476.pdf
    • http://thanhthanhphoto.net/uploads/1/3/0/5/130588203/2002101e.pdf
    • http://solitlife.net/uploads/1/3/0/5/130551777/sesomuzuwupevotil.pdf
    • http://stevehetrick.com/uploads/1/3/0/5/130548039/tozeganus.pdf
    • http://northwestclubracer.com/uploads/1/3/0/2/130272629/niduvixuwuwolu.pdf
    • http://daciajones.com/uploads/1/3/0/4/130483587/rusexezikunimenir.pdf
    • http://ocwpublishing.com/uploads/1/3/0/3/130312991/130312991.html#counter+strike+1.6+oyuny%C3%B6neticisi+indir

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000014f5.bin
ca76e62794cccedc7585cad6b96f19bfd13ca0673ee1a935b2deecc70017c40d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14F5 10112 bytes

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