Malicious PDF — malware analysis report

Static analysis result for SHA-256 63b948bd65ef62de…

MALICIOUS

PDF

30.7 KB Authoring application: PDFedit
MD5: be7d023c942b06ed52485acbba9a6636 SHA-1: b7f891abd3bdfc5ce76f1a8703f8643d0bc4f4d7 SHA-256: 63b948bd65ef62de83cd2ba3cdb690bf90b89b09ebfb81cedbe0073b215eaf3a
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded URLs that lead to other PDF files, suggesting a multi-stage download attack. The document body, though partially corrupted, indicates a lure related to 'second conditional English exercises' to trick users into downloading the malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://micahtwilson.com/uploads/1/3/0/2/130291551/weligowopilaguwed.pdf
    • http://mosquitomiracle.com/uploads/1/3/0/5/130588444/wemifoxukinogot_wejubem_vukim_subagakufarif.pdf
    • http://sezekoxe.boom-trikes.ru/uploads/2020/01/28/lidikud.pdf
    • http://allthingscpr.com/uploads/1/3/0/5/130541552/130541552.html#second+conditional+english+exercises+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00000fea.bin
90277b98e603d05c224c6e820b6dd69f06970d2988d775b60aebc45120810941		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFEA 7564 bytes

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