Malicious PDF — malware analysis report

Static analysis result for SHA-256 d37c94ce23aeedc1…

MALICIOUS

PDF

42.3 KB Authoring application: ImageMagick
MD5: 0fcee1ac71481ac70f8aa150337ef9b5 SHA-1: 97b2c221f1086de7e884f16c24ff88890a1bcc6a SHA-256: d37c94ce23aeedc146b97b00749882de82570cf1c83b17bbdfe7a7bf325f2d35
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 pointing to external resources. The ClamAV detection and ML classifier strongly indicate maliciousness, specifically identified as a phishing attempt. The document body, though partially corrupted, contains text related to 'Grammar lessons for esl students' which is likely a lure to disguise the malicious intent. The primary attack pattern involves directing users to download further malicious content via the embedded URLs.

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://muscatmassage-service.com/uploads/1/3/0/4/130490584/bisajemunekebipexove.pdf
    • http://qurantobible.co.uk/uploads/1/3/0/6/130604681/fcae0.pdf
    • http://smartmix.xyz/uploads/2020/01/27/7635493.pdf
    • http://qwikcheckapp.com/uploads/1/3/0/4/130476917/6202238.pdf
    • http://asociacionperiodistaspr.org/uploads/1/3/0/5/130588830/130588830.html#grammar+lessons+for+esl+students

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000103f.bin
1960c28deb0f7d8659ff0927a7b5f80b816409485b46703722a81563959612f5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x103F 8416 bytes

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