Malicious PDF — malware analysis report

Static analysis result for SHA-256 9846769f4e04b389…

MALICIOUS

PDF

33.4 KB Authoring application: OpenOffice.org
MD5: eccb7b1be01a3ffdb37e1cf49d33287f SHA-1: a922bcaab44980f401a3578ccc8de143223b7a91 SHA-256: 9846769f4e04b389f487dce03949d0b413c0a8485bb74aa79798c2ddc9d02321
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of external links, as indicated by the PDF_SEO_LINK_FARM heuristic. This suggests a phishing or SEO manipulation tactic, aiming to drive traffic to potentially malicious websites. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports the malicious classification. No scripts were extracted from this sample.

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://kuponyaarts.com/uploads/1/3/0/7/130738484/4906959.pdf
    • http://evq.ro/uploads/1/3/0/5/130543364/b046512521b8.pdf
    • http://thegr8tergood.com/uploads/1/3/0/6/130604147/183419.pdf
    • http://blueblazeshoops.com/uploads/1/3/0/6/130605080/709a16eb92.pdf
    • http://alliesonthejourney.com/uploads/1/3/0/6/130604169/jokegiwaworilejo.pdf
    • http://allamericanoverheaddoors.com/uploads/1/3/0/2/130270899/2514983.pdf
    • http://wer4jesus.com/uploads/1/3/0/2/130288811/308af7522.pdf
    • http://morethanfood.net/uploads/1/3/0/6/130640078/lilipenifo.pdf
    • http://shineforfiveboutique.net/uploads/1/3/0/6/130604187/xonofora_faxubotimilop_wodaromuzuku.pdf
    • http://wildrosekitchen.org/uploads/1/3/0/5/130590122/7267997.pdf
    • http://stoneysbarandgrill.com/uploads/1/3/0/5/130589278/3812492.pdf
    • http://mychinesewatch.com/uploads/1/3/0/4/130435781/130435781.html#ace+academy+gate+offline+test+series+result

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000128c.bin
f67daeab4c7be49f3204df76a73826ae0c43ca5d8da8cb9a3afc7017881cd0e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x128C 7936 bytes

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