Malicious PDF — malware analysis report

Static analysis result for SHA-256 434b99e075b0beb6…

MALICIOUS

PDF

36.4 KB Authoring application: Karbon
MD5: 1b19b60d95d96e7b85d0f91ba938a699 SHA-1: 80f8577225785e0d952e694719ac79066a5e1d9e SHA-256: 434b99e075b0beb6ad7c79fc4ca7eaa1ee2c94d2d30e16bf9f8a91061005a704
150 Risk Score

Malware Insights

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

The PDF contains a link farm heuristic, indicating it's designed to direct users to multiple external malicious PDFs. The document body, though partially corrupted, mentions academic content and includes URLs that are likely part of a phishing or malware distribution scheme. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports the phishing and traffic redirection intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://theluckywood.com/uploads/1/3/0/5/130590314/varetu.pdf
    • http://muzoemerald.net/uploads/1/3/0/3/130313049/2720260.pdf
    • http://stat-roditelyami.ru/uploads/2020/01/28/guwar_jawowutem_sinovixa_lanofelubijozif.pdf
    • http://blockchainambassador.ca/uploads/1/3/0/5/130550949/130550949.html#sample+letter+of+recommendation+phd+economics

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001031.bin
aeff3cf927496f59ddebe6a75b4ab6d75f981a55834cba0d6cc894b88e732389		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1031 8572 bytes

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