Malicious PDF — malware analysis report

Static analysis result for SHA-256 002e6dd02d2eea20…

MALICIOUS

PDF

39.0 KB Authoring application: Karbon
MD5: da5dd2ddbd0addcec5b89798fb01a1f6 SHA-1: 5afba16f2d5d625e2398b46c8ce10c87a7a8192d SHA-256: 002e6dd02d2eea20a7d056f66f6220115c91626e3d3ff54f766ca72501abc820
152 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs pointing to other PDF files, a technique often used for SEO manipulation or to distribute further malicious content. The ClamAV detection and ML classifier strongly indicate maliciousness, consistent with a phishing or spam campaign leveraging link farms. No scripts were extracted, limiting the analysis of direct execution capabilities.

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://startingpoint.info/uploads/1/3/0/2/130288363/cb84306de96b.pdf
    • http://onitscore.com/uploads/1/3/0/7/130739000/7e1cd7.pdf
    • http://rapidcitywebsites.com/uploads/1/3/0/4/130488331/3c11d.pdf
    • http://my-battalion.com/uploads/1/3/0/2/130273584/savakokanuvuzixado.pdf
    • http://pameladirnberger.com/uploads/1/3/0/4/130488241/palerenomu.pdf
    • http://photolove-nn.ru/uploads/2020/01/28/bekige_levuxanu.pdf
    • http://clearhrsolutionsd.com/uploads/1/3/0/6/130603690/27e1c.pdf
    • http://balannz.com/uploads/1/3/0/5/130540186/vunawonujogopa.pdf
    • http://poshha.net/uploads/1/3/0/5/130590503/gusuresizakuxosofexi.pdf
    • http://necoraindustries.com/uploads/1/3/0/6/130621788/zagolovakepaninij.pdf
    • http://rebeccalaplacaattia.com/uploads/1/3/0/6/130605405/130605405.html#seizures+while+sleeping+dehydrated

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001258.bin
c8cc1871c4e7320459528ad0afcf1255538afa364eaa041d853b6c0b2ad4793e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1258 8292 bytes

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