Malicious PDF — malware analysis report

Static analysis result for SHA-256 07d1ed834daf6e39…

MALICIOUS

PDF

36.0 KB Authoring application: OpenOffice.org
MD5: a23a8ed9c700210d382dab666dec579d SHA-1: bba93ce8d0a0f8d1b9c62191bc0602dec113c0d2 SHA-256: 07d1ed834daf6e39f60f1400aa22b4d81a1520a6dd0abb0582c7095c6020f23a
152 Risk Score

Malware Insights

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

The file is identified as malicious by multiple heuristics, including a critical PDF link farm detection and a ClamAV signature for phishing. The embedded URLs and the document body, though obfuscated, contain numerous links to external PDF files hosted on unrelated domains. This suggests a tactic to manipulate search engine results or to serve as a distribution point for further malicious content, aligning with phishing or SEO spam campaigns.

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://mrlowescience.net/uploads/1/3/0/3/130323471/7072946.pdf
    • http://nyimajarrascreativeworld.co.uk/uploads/1/3/0/2/130272859/gelofonozetojuj.pdf
    • http://plan2succeed.net/uploads/1/3/0/6/130620626/43fd97b5123.pdf
    • http://gijuj.audiostart21.icu/uploads/2020/01/29/8521049.pdf
    • http://meteorcrater.net/uploads/1/3/0/6/130603696/4d0b90a1ae93.pdf
    • http://zambiasafarihunting.com/uploads/1/3/0/6/130639358/130639358.html#integers+notes+6th+grade+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001239.bin
14dc29c9e422d2edca43d19a6c69d9fda89b27f35377e45e6d2f60b497939979		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1239 8212 bytes

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