Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2510b473bfc7be7…

MALICIOUS

PDF

40.0 KB Authoring application: OpenOffice Draw
MD5: 310eedc46e7fe011dd759a32fd4c7c2b SHA-1: 1fafd5812c3dfa86b15b969d273a9b53eacb52d1 SHA-256: a2510b473bfc7be7533ce14a463711d8597dba6f33c7aef14c5af238ec54f6a3
92 Risk Score

Malware Insights

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

The file is a PDF document that contains multiple embedded URLs, all of which point to other PDF files or an HTML page. The document body text, though partially corrupted, indicates it is a 'Medical certificate form for new job'. This suggests a phishing or social engineering attack, where the user is tricked into downloading a malicious file by a deceptive lure. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://lakefieldbaptistchurch.org/uploads/1/3/0/6/130605133/ba33f.pdf
    • http://honeyee.us/uploads/1/3/0/7/130738845/biwovirabomome.pdf
    • http://motercontrol.com/uploads/1/3/0/2/130289179/f88c97b47f30c7.pdf
    • http://virtuousink.net/uploads/1/3/0/6/130621020/nerodugonijariro.pdf
    • http://boneandstone.net/uploads/1/3/0/5/130538869/reniwogixazuguwat.pdf
    • http://clucktruckportland.com/uploads/1/3/0/2/130288392/130288392.html#medical+certificate+form+for+new+job

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000107a.bin
c5dd39e1454ceccd517ab55179b2d9d186d20fff10ae059574621fa7fe4c5f7b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x107A 8116 bytes

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