Malicious PDF — malware analysis report

Static analysis result for SHA-256 216eec7cb479459f…

MALICIOUS

PDF

32.7 KB Authoring application: SWFTools
MD5: a9c57e5c4e1a26bfa9a3f98a82fa2306 SHA-1: 810e9bb363cc50b91576506aa1accd8a6e022abb SHA-256: 216eec7cb479459f2cca22aa4f05f700a7cb3042b9d1edf1058d5bcc7d2e044d
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF file was flagged by multiple heuristics, including ClamAV and an ML classifier, indicating malicious intent. The PDF_SEO_LINK_FARM heuristic fired, identifying a mass of external links. These links likely serve to redirect the user to further malicious content or phishing sites. 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://ajameskolar.com/uploads/1/3/0/4/130478106/janusisor_wesuwoxebi.pdf
    • http://nebraskatowshow.com/uploads/1/3/0/3/130379105/7226254.pdf
    • http://amazingamericanstv.com/uploads/1/3/0/4/130491757/9510650.pdf
    • http://mirthrot.net/uploads/1/3/0/6/130603743/fozufigopifenakawiwi.pdf
    • http://tweetyjill.weebly.com/uploads/1/3/0/6/130620668/4503730.pdf
    • http://shopconsidertheravens.com/uploads/1/3/0/6/130620194/bomuk_koweropuf.pdf
    • http://survivingmentalhealth.com/uploads/1/3/0/5/130543121/refejonutuxexo.pdf
    • http://nealcm.com/uploads/1/3/0/6/130640028/2f7b11db8.pdf
    • http://claudiafreepoint.com/uploads/1/3/0/2/130287835/ee3351ee7f18.pdf
    • http://moneytalkwithtiff.com/uploads/1/3/0/7/130739871/130739871.html#cooler+master+hyper+212+evo+vs+amd+wraith+cooler

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000120d.bin
3d0ff5cf4819ad2f502ef5491f528a53f1735c26bd339b568ea3907e1bc7adc1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x120D 7940 bytes

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