Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6be3618bfdfcb1c…

MALICIOUS

PDF

33.8 KB Authoring application: PDFedit
MD5: 2ae5e36b2a26871255e7cc6ce3d98ffe SHA-1: f89fd4894a74393ef7aa28a923d8be514317ba8f SHA-256: f6be3618bfdfcb1c11cc0eb693ed75f63aceabfab27c8c00196a85d90b1c5ec6
152 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to distribute malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier output strongly indicate malicious intent. The document body is heavily obfuscated and contains what appears to be a mix of legitimate text and corrupted data, making its specific purpose unclear beyond the link farm.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://ninjamindfulness.com/uploads/1/3/0/2/130270977/5352242.pdf
    • http://www.into-the-wild.net/uploads/1/3/0/6/130640159/6aa5ef0ec281ae.pdf
    • http://adidasdeadstockmarketplace.com/uploads/1/3/0/5/130551441/wudewogunov.pdf
    • http://vidachiropractichixson.com/uploads/1/3/0/7/130776363/e31fefb8.pdf
    • http://janefaily.com/uploads/1/3/0/5/130588207/buwepaxut.pdf
    • http://backandbarberingstudio.ca/uploads/1/3/0/4/130483937/wanorazapogilenapat.pdf
    • http://emilylaidler.com/uploads/1/3/0/5/130588272/5769131.pdf
    • http://www.vivtechmechanical.com/uploads/1/3/0/6/130604801/b6aa7.pdf
    • http://levelgrindcoffee.com/uploads/1/3/0/2/130289700/rimasizewetifotose.pdf
    • http://amsterdamtours.vip/uploads/1/3/0/8/130874309/jozoruxageg.pdf
    • http://beachfrontcondosfl.com/uploads/1/3/0/6/130620961/7848983.pdf
    • http://ctrader.it/uploads/1/3/0/4/130435690/3399736467d6.pdf
    • http://msxgear.com/uploads/1/3/0/4/130475909/mefakedab-xifakujabemedul-jepunisuzotow-wuwexijad.pdf
    • http://www.spacecreationdesign.com/uploads/1/3/0/6/130620551/130620551.html#prinsip+alat+hematology+analyzer

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002cdc.bin
6b24260a86c3203a5dcf053d918aa5833a8b4e8d17d0d6595a5cbecaf2871116
pdf-font-stream PDF embedded font (sfnt) at offset 0x2CDC 7280 bytes