Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c5c69d781b9b81e…

MALICIOUS

PDF

27.6 KB Authoring application: PDFedit
MD5: 97a901a945261e1691917e9bab394492 SHA-1: 6a762c33ab60a46da5854ae47a5d6e685d442580 SHA-256: 9c5c69d781b9b81e7fe54628b0df399779897e3e65ff78ad4f1a039b783fff2e
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various domains. The ClamAV detection and ML classifier strongly indicate malicious intent, specifically identified as Pdf.Phishing.TtraffRobotInstall. The document body, though partially obfuscated, contains URLs that are also listed in the extracted URLs, reinforcing the link farm attack pattern. The primary goal appears to be directing users to a network of potentially malicious websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://twoteachersaboard.com/uploads/1/3/0/5/130590477/nevitalunarikuvivew.pdf
    • http://bumbleandsprout.com/uploads/1/3/0/5/130546937/5590933.pdf
    • http://cprspot.net/uploads/1/3/0/6/130639710/b18aef7c21e.pdf
    • http://bestofthewestmoving.com/uploads/1/3/0/5/130588532/dokugenibuximujebafu.pdf
    • http://tiffanyfoster.ca/uploads/1/3/0/4/130483821/a02ec0ece.pdf
    • http://nationalriskmanagementgroup.com/uploads/1/3/0/2/130272902/130272902.html#eclipse+4gb+fit+clip+manual

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000103a.bin
37ba28d13207bb1d8acc8787d529c7be910ca50d5d60200e18e88388e7b9b568		 pdf-font-stream PDF embedded font (sfnt) at offset 0x103A 7632 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.