Malicious PDF — malware analysis report

Static analysis result for SHA-256 601f3eac3cbcf241…

MALICIOUS

PDF

58.0 KB Authoring application: OpenOffice Draw
MD5: 0663c450dad71d8fbac7ebe6eca431c3 SHA-1: 3b5cb2d5f9f3ad6f570935e0c506da0c993ee5e6 SHA-256: 601f3eac3cbcf2419f20eb9c961474efa1a81201366730bcb718b48159ffa297
152 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external PDF documents, as indicated by the 'PDF_SEO_LINK_FARM' heuristic. The ML classifier and ClamAV also flagged this file as malicious, specifically as a phishing or bot-related threat. While no scripts were directly extracted, the structure suggests an attempt to manipulate search engine results or distribute malicious content through a link farm, potentially leading to further compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://thechurchlawgroup.com/uploads/1/3/0/3/130379291/9a8dedcc.pdf
    • http://theapostolicinititative.org/uploads/1/3/0/6/130604907/wivofixomuko-dezopetat-detoziguzokis-sasuronowezu.pdf
    • http://annemarshall.com/uploads/1/3/0/6/130621278/fudexinu.pdf
    • http://brandpants.com/uploads/1/3/0/2/130287878/9302044.pdf
    • http://olykraut.net/uploads/1/3/0/6/130604388/furujekipeg-gilenifududeg.pdf
    • http://nextlane360.com/uploads/1/3/0/5/130543035/c7316252.pdf
    • http://benkregel.com/uploads/1/3/0/4/130476389/130476389.html#text+abbreviation+list+pdf
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000011cd.bin
d0155d3fd2648e847bcd3f127c4778a17c98e912b843b0bf1a919b9924b37d8a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11CD 9648 bytes
font_01_sfnt_off00008b7d.bin
9a028ab7d4bef44b819005b1ef182c17cbf1bd5f7ac527f505fc409cf67be0db		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8B7D 20204 bytes
font_02_sfnt_off0000a9e5.bin
b3b238fd3ac8794d753ddbfa4f07e4c45303c142b604be13bf8677e74c85e3cc		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA9E5 1960 bytes

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