Malicious PDF — malware analysis report

Static analysis result for SHA-256 b040b0d1f1d89b66…

MALICIOUS

PDF

33.0 KB Authoring application: PDFedit
MD5: 33ecc55ef85309b61041ef75caad3bd0 SHA-1: 3f06151e42a05019f48922678fe1fe9818a6c5c3 SHA-256: b040b0d1f1d89b664ecf1ec2becdf73ac89496c8ef1eef61d84f7589c4c43b70
150 Risk Score

Malware Insights

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

The PDF file was flagged by ClamAV as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and exhibits a large number of embedded external links, indicating a link farm designed to redirect users to potentially malicious content. The ML classifier also strongly indicated maliciousness. The document body content is heavily obfuscated and unreadable, providing no direct clues to its specific purpose beyond the link farm.

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://northernlightscoaching.net/uploads/1/3/0/7/130776032/vufexiditofot-rovaxusujuza-kurafofu-kedokemi.pdf
    • http://siddhearta.com/uploads/1/3/0/2/130291702/8743966.pdf
    • http://bayswaterlacrosse.com/uploads/1/3/0/5/130545816/zewefu.pdf
    • http://morrisfamilyfund.org/uploads/1/3/0/6/130620926/nabidikuzu.pdf
    • http://thearieldiamonds.com/uploads/1/3/0/8/130874010/nefilakivuw.pdf
    • http://kudos2k9s.com/uploads/1/3/0/6/130620752/situd_jikamu_zapojufuwakoxe.pdf
    • http://surggripper.com/uploads/1/3/0/4/130489467/8642032.pdf
    • http://jamshr.org/uploads/1/3/0/6/130622095/wilix.pdf
    • http://terriguy.com/uploads/1/3/0/3/130379743/tajegakuwekudaf-baliwof-gerovevixijame.pdf
    • http://www.tomhoffman2.com/uploads/1/3/0/5/130551907/e798398ec614f.pdf
    • http://brendonsingh.com/uploads/1/3/0/2/130270804/6454363.pdf
    • http://cww60.bpmtc.com/uploads/1/3/0/8/130814868/130814868.html#absorption+costing+journal+entries+example

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002a22.bin
cb6b90d94c75e6c678a26c2e7c904d245f098b32dc3993e1f07c2396575158b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A22 7832 bytes

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