Malicious PDF — malware analysis report

Static analysis result for SHA-256 21c90c806280c2a5…

MALICIOUS

PDF

33.3 KB Authoring application: PDFedit
MD5: d9f996c59c0dec69e38dce56286280b1 SHA-1: efdc0cf449a4e6c127adb7b59a82ad78c4f561e2 SHA-256: 21c90c806280c2a5d72dcf8a6968dd532b66a8c8555f7eca8d5756ab58a7f7c5
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 PDF files hosted on different domains. The ClamAV detection and ML classifier strongly indicate malicious intent, specifically classified as phishing. The embedded URLs are likely used to distribute further malicious content or redirect users to phishing sites.

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://musetechnolgies-unite2.com/uploads/1/3/0/2/130272898/kavezazimosasufukaw.pdf
    • http://kuteriron.ideastoyou.ru/uploads/2020/01/27/terunopus.pdf
    • http://suk.paulandkelsey.com/uploads/2020/01/27/9793360.pdf
    • http://featurebeam.com/uploads/1/3/0/2/130272325/4282266.pdf
    • http://botoxalpharetta.com/uploads/1/3/0/2/130289503/01c4e2b430.pdf
    • http://fukil.megadrom.info/uploads/2020/01/28/fasebijovup.pdf
    • https://zopinafedinego.weebly.com/uploads/1/3/0/4/130483123/1358680.pdf
    • http://zawul.fineremont.ru/uploads/2020/01/28/nezuvotujuwirumedogi.pdf
    • http://nidemujin.periodismo-news.com/uploads/2020/01/28/ruruz-sipiz-vebob.pdf
    • http://misbailes.com/uploads/1/3/0/2/130271095/130271095.html#what+is+the+difference+between+inductive+reasoning+and+deductive+reasoning+quizlet

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001200.bin
fe3c562ed20a7fa18fac9fa76cb510254fb62c94e697768dd5c364e7160493f9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1200 7332 bytes

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