Malicious PDF — malware analysis report

Static analysis result for SHA-256 7767767690c85574…

MALICIOUS

PDF

42.7 KB Authoring application: PDFBox
MD5: 9e07aefb285561bec919e4d90008af7f SHA-1: 336ddaba8cd1ceaf79834cfb101f5249c6e877b3 SHA-256: 7767767690c855742206bfbcdccca93bf26986fc01582bc598f556ac1b9eee79
152 Risk Score

Malware Insights

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

This PDF file was flagged by multiple detection engines, including ClamAV, as malicious. The primary heuristic identified a large number of external PDF links within the document, pointing to domains like perfect-right.com and kleklazo.site. While no scripts were explicitly extracted, the PDF structure and the presence of numerous external links suggest an attempt to redirect users to potentially malicious content or engage in SEO manipulation. The document body contains garbled text mixed with URLs, further indicating a non-standard or obfuscated purpose.

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://perfect-right.com/uploads/1/3/0/2/130289283/vufarawe.pdf
    • http://kleklazo.site/uploads/1/3/0/4/130488362/796be3fed76d84.pdf
    • http://dmedansky.com/uploads/1/3/0/3/130323908/lokola.pdf
    • http://containerconstructionpros.com/uploads/1/3/0/4/130435844/779a1d0c11ff4.pdf
    • http://dataprotectionadvice.com/uploads/1/3/0/6/130622029/digexo_femiwes_pivizi.pdf
    • http://fencingaberdeen.com/uploads/1/3/0/6/130604009/libekatumozoz.pdf
    • http://myprintpad.com/uploads/1/3/0/6/130605015/gorexaxakekak_jepivonojuf_wivufubovun_giturul.pdf
    • http://misssupremepurityqueen.com/uploads/1/3/0/4/130476442/130476442.html#bushmaster+xm15-+e2s+serial+number+l

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001209.bin
4576e6867e1d7a370a1e25a5dbca9ec4b716841bc30aa1f42a45da5f6eeaf454		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1209 9288 bytes

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