Malicious PDF — malware analysis report

Static analysis result for SHA-256 293a94a4fa8bb254…

MALICIOUS

PDF

38.8 KB Authoring application: PDFBox
MD5: 32fc16eb54b02ac28300e031975a8575 SHA-1: 40a6cf6f672fcf889ee07eeadc116a4dfde714f2 SHA-256: 293a94a4fa8bb254268f8f93e5d72da9e0e5cdd2f662ea92e1fcdaec9c65fb0a
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF document was flagged by ClamAV as Pdf.Phishing.TtraffRobotInstall and exhibits a critical heuristic for a PDF link farm. The document body contains numerous URLs pointing to external PDF files, suggesting a redirection or SEO poisoning attack. The primary intent appears to be directing users to a large number of potentially malicious or phishing-related PDF documents hosted across various domains.

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://neteller-net.xyz/uploads/2020/01/27/3b4c9f10fee23.pdf
    • http://mich-interiordesignllc.com/uploads/1/3/0/4/130435561/fepabubizema.pdf
    • https://lukolowusabuk.weebly.com/uploads/1/3/0/5/130545396/gipuledezemukikukez.pdf
    • http://lisuvimapi.ooo-sanatoriy.com/uploads/2020/01/28/4880850.pdf
    • http://agouracouplestherapy.com/uploads/1/3/0/2/130287394/wapibufufu_zojet.pdf
    • http://syxgems.org/uploads/1/3/0/6/130640159/175005.pdf
    • https://rudogidaf.weebly.com/uploads/1/3/0/5/130538831/ribafix-modewot-limir.pdf
    • http://juz.gbpfinancials.com/uploads/2020/01/27/58fc524f7a.pdf
    • http://micasitarentals.com/uploads/1/3/0/3/130313203/dd8971d8f.pdf
    • http://novelendings.com/uploads/1/3/0/6/130622042/7603080.pdf
    • http://hotelbrisasdeguatape.com/uploads/2020/01/28/wojegoxopor.pdf
    • http://rainbowsprinklescupcakery.com/uploads/1/3/0/5/130590592/zigurotoje_gitegegewiji.pdf
    • http://lebuda.karvan-group.com/uploads/2020/01/28/518048.pdf
    • http://nivuwepe.veredas.online/uploads/2020/01/28/segaresezigozif-gimogexodu.pdf
    • http://cookstown.ca/uploads/1/3/0/5/130590637/jiwowedif.pdf
    • http://premierbv.com/uploads/1/3/0/6/130604263/kidonubelidaronu.pdf
    • http://taterbucks.com/uploads/1/3/0/6/130604934/sowowumevuf_mozefogozirawu_nakibixabasiz_fefoxunusufa.pdf
    • http://peaceofmindkindercare.com/uploads/1/3/0/3/130379317/ba78a98.pdf
    • http://led-n-minis.com/uploads/1/3/0/5/130551258/buzajogizepipa.pdf
    • https://xeniparam.weebly.com/uploads/1/3/0/4/130483794/difedavax.pdf
    • http://iizznqll.info/uploads/2020/01/27/lewexi.pdf
    • http://riversidecountyhistory.org/uploads/1/3/0/5/130539886/130539886.html#pathophysiology+of+ascites+in+liver+failure

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001638.bin
c2efd3c57bf72f153b72949e65cf24a50ee99cc81a8ea59717cd054b576beff2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1638 7820 bytes

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