Malicious PDF — malware analysis report

Static analysis result for SHA-256 b038a4dfe46a084b…

MALICIOUS

PDF

42.1 KB Authoring application: ImageMagick
MD5: d1366c0dd392dc60de61b4c2f46f40c5 SHA-1: 0c0df835ca4910d5d371116fdd78f66d89a9315e SHA-256: b038a4dfe46a084b1d36f7bee4a2fcb2a1ba5673e93e416db4cadb72352f5247
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs pointing to other PDF files across various domains, indicating a link farm or redirection strategy. This behavior is consistent with phishing or SEO manipulation tactics. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall' further supports a malicious intent, likely related to traffic generation or phishing.

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://drderickclinic.com/uploads/1/3/0/5/130550967/ec1d9.pdf
    • http://justgogood.com/uploads/1/3/0/5/130551463/sizetoxedeseti.pdf
    • http://dovernewlife.org/uploads/1/3/0/6/130603740/3955803.pdf
    • http://barefootlaneclothing.com/uploads/1/3/0/4/130483087/7815523.pdf
    • http://clickdowntoearth.com/uploads/1/3/0/4/130483900/rirera-vifomew-datizelijawav.pdf
    • http://belleball.com/uploads/1/3/0/5/130540504/566126.pdf
    • http://zewetinat.rantjeteam.ru/uploads/2020/01/28/jekugita_xoloxikaf_zefegadutox_jonarenolivuw.pdf
    • http://wannarun.com/uploads/1/3/0/5/130540683/7904421.pdf
    • http://nobuhotelmarbella.devsite-1.com/uploads/1/3/0/2/130271179/130271179.html#change+up+movie++300mb

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000011d4.bin
55c3cab870042866ebc8c8709e76e7492db53985ad9e284b6c28ff1d7782d9ae		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11D4 8636 bytes

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