Malicious PDF — malware analysis report

Static analysis result for SHA-256 082d3cd912230c4f…

MALICIOUS

PDF

77.7 KB Created: 2021-04-16 17:35:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1257e40dd2b0bc27ee681085e782a895 SHA-1: af55236cc8cc175728a24d1e83f99ed0cd2f2d40 SHA-256: 082d3cd912230c4f426c9022f31ed6cf3d119813e1d586b346722888980f7147
94 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The document contains embedded URLs, one of which is a feedproxy URL that appears to be a lure, suggesting a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are consistent with techniques used to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9282

Heuristics 3

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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 https://www.blplegal.com/sites/default/files/webform/54305505708.pdf
    • http://www.muttypawsacademy.com/sites/default/files/webform/vaccines/65827293628.pdf
    • http://www.birdlifebotswana.org.bw/sites/default/files/webform/sightings-sketches/fipeforivu.pdf
    • http://portal-mysigma.com/system/files/student-proof/pifudolaloxafedotodela.pdf
    • http://www.guninetwork.org/system/files/webform/heirri_proposals/rarapenebeku.pdf
    • https://www.a1touchsolution.nl/sites/default/files/xofarazenufokedakuzos.pdf
    • http://spotlight-sites.com/sites/default/files/webform/razodogodipuvubetixem.pdf
    • https://www.osgeurope.com/sites/osg-corporate.dev/files/webform/28911573484.pdf
    • https://www.dgs-interparts.be/sites/default/files/60165950635.pdf
    • http://www.birdlifebotswana.org.bw/sites/default/files/webform/sightings-sketches/beporu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=is+white+fang+a+good+skateboard+reddit
    • https://www.ice.cam.ac.uk/sites/www.ice.cam.ac.uk/files/webform/xegenaxug.pdf
    • https://campusrec.princeton.edu/system/files/webform/34970544405.pdf
    • https://printandmail.princeton.edu/system/files/webform/68272747422.pdf
    • https://printandmail.princeton.edu/system/files/webform/50156150340.pdf
    • https://community.princeton.edu/system/files/webform/tujuxegagisezemesolut.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010512.bin
34095293847fd99e1e67c96b95cf9883b59831aed4d2023f3b93542c2f3d8076		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10512 5372 bytes
font_01_sfnt_off00011763.bin
9c5b6b5ee423aa1ce2bbbf91e1a00ccc9b3db726c35fc5bfc51e438460d2b66c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11763 10972 bytes

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