Malicious PDF — malware analysis report

Static analysis result for SHA-256 df7f83182b984cb2…

MALICIOUS

PDF

55.3 KB Authoring application: Adobe PDF Library 9.0
MD5: a2ac11b02cbfb0bd9f20a6c852092504 SHA-1: 897af2c12e29f71589d99c91df135573619f5c6c SHA-256: df7f83182b984cb2eb695865c108a2e9774da8be6fd49fe40f21bbcbc7b29926
150 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various domains. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier's high confidence score further indicate malicious intent. The embedded URLs suggest a phishing or malware distribution campaign, likely aiming to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://northbeavercontracting.net/uploads/1/3/0/6/130604335/bilexaka_xusijedimad_banaxinobepi_mazegapa.pdf
    • http://eleanorfraser.com/uploads/1/3/0/7/130775366/dosilex-tenimivugewena.pdf
    • http://mymoneybuilder.net/uploads/1/3/0/4/130436439/jasiximirabusi_kixafimiso_zusixi_nuduv.pdf
    • http://mindbodypsychology.net/uploads/1/3/0/7/130739192/6fdb908276af.pdf
    • http://atcalloys.com/uploads/1/3/0/2/130287495/nenesewebetepopad.pdf
    • http://speranzaassociates.com/uploads/1/3/0/6/130604083/8165896.pdf
    • http://dancinggoatsanctuary.com/uploads/1/3/0/6/130621868/130621868.html#esc+rheumatic+fever+guidelines

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000010d9.bin
805fad655d2a2a87bf1e745b95fa64ec2c1519bb0348e4e3f8b57600445b60f7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10D9 8480 bytes
font_01_sfnt_off00009dba.bin
6dc6e07f93ae70488a19e8a398a1c6cda2f5723fc3d3cbe180c5afbb10c3611e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9DBA 2864 bytes

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