Malicious PDF — malware analysis report

Static analysis result for SHA-256 be51f50db74cfe1a…

MALICIOUS

PDF

42.3 KB Authoring application: PDF Studio
MD5: d0218ffc57e3ddc9e30207de374353f9 SHA-1: c382ce4ab67ab2b3de0c6755122a7bd2ec2dfeb7 SHA-256: be51f50db74cfe1a4b46f44e8e698efd76c34e14aaccee386252a2bac8519f93
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The file is a PDF document detected as malicious by multiple engines, including ClamAV as 'Pdf.Phishing.TtraffRobotInstall-7605656-0'. It contains multiple embedded URLs pointing to external PDF files, suggesting a phishing or malware distribution attempt. The document body, though partially obfuscated, contains references to these URLs and appears to be a lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://milothaimassage.com/uploads/1/3/0/6/130639651/sexiboviru-rinewulewavaka-jisabenomon-rujeponob.pdf
    • http://dealswithdessy.com/uploads/1/3/0/6/130620951/tuzoduritib-lajusunu-pipojomu-kidinomixonux.pdf
    • http://poeball.net/uploads/1/3/0/7/130738859/dojogutewubi.pdf
    • http://kelceyfredette.com/uploads/1/3/0/5/130590508/sakuvenuxod-kobujulimile.pdf
    • http://nuobeijing.devsite-1.com/uploads/1/3/0/2/130289429/130289429.html#resmed+s9+vpap+user+manual

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001087.bin
29725826bddec50283910b0c2e220cd2963278aef793991591af2357716154e5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1087 8560 bytes

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