Malicious PDF — malware analysis report

Static analysis result for SHA-256 74f9b3918b39d641…

MALICIOUS

PDF

33.2 KB Authoring application: Inkscape
MD5: 5ddf25b6c8ba11ba141b8638e8aa19b1 SHA-1: b6fe7d40f693e6afea828d74984897aa324ab10f SHA-256: 74f9b3918b39d6412f5b35eb07bc7a0c3498a972219423e15c4b70bff449df55
152 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO manipulation or to distribute further malicious content. ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and a high ML classifier score further indicate malicious intent. The document body, while heavily obfuscated, contains references to these URLs, reinforcing the attack pattern.

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://carolinaeast.live/uploads/1/3/0/6/130604919/9642193.pdf
    • http://midnightepiphany.org/uploads/1/3/0/5/130542953/xinedukupej.pdf
    • http://pagesofmypinkdiary.com/uploads/1/3/0/6/130604191/1fd3ded288.pdf
    • http://dmnroundtable.com/uploads/1/3/0/5/130543074/127899.pdf
    • http://juriga.net/uploads/1/3/0/3/130312973/ea32c94ae9f.pdf
    • http://bankheadboys.com/uploads/1/3/0/5/130551270/busevixe.pdf
    • http://coopersflamethrower.com/uploads/1/3/0/2/130272350/3377559.pdf
    • http://lawrencepestpros.com/uploads/1/3/0/6/130639026/datofawinot.pdf
    • http://cleanwatergso.net/uploads/1/3/0/5/130541140/mozol.pdf
    • http://mybuildahome.com/uploads/1/3/0/6/130605285/fepurerexalisalix.pdf
    • http://annan.rominastiebenphotography.com/uploads/1/3/0/4/130436439/130436439.html#gta+5+jet+cheat+code+ps3

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002bd2.bin
cb0ef48248514e3851fec29b7f282a0da11d670a08bbe2a127652b8024954d92		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BD2 8036 bytes

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