Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed63f5099637665d…

MALICIOUS

PDF

157.5 KB Created: 2019-06-27 19:28:50 -04:00 Authoring application: PDFescape Online - https://www.pdfescape.com (via RAD PDF 3.19.2.2 - https://www.radpdf.com) First seen: 2021-09-18
MD5: 0815f4c86cf6dd0fd212d899ad98a6eb SHA-1: 70fc00c9bcfc7200331bbab01c14af95e3fb48d0 SHA-256: ed63f5099637665d750c818498b1de6cac2fe5f5002a6256b8f5b133bb6182a2
84 Risk Score

Malware Insights

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

The PDF is identified as a phishing lure due to its image-only nature and the presence of an action trigger. It contains multiple embedded URLs, with https://onedvfax.tk/jss/toda/ being a primary indicator of malicious intent. The ClamAV detection further supports its classification as malicious, likely related to phishing campaigns.

Machine Learning

  • Nyx PDF Classifier clean score 0.1447

Heuristics 4

  • ClamAV: Pdf.Phishing.Onedrive-9852983-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Onedrive-9852983-0
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 157 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://onedvfax.tk/jss/toda/ In PDF document text
    • http://aliattorney.com/cgi/toda/In PDF document text
    • https://www.whatilovedtoday.com/wp-content/toda/In PDF document text
    • https://www.radpdf.comIn PDF document text
    • https://www.radpdf.com)/Title(GenesisIn PDF document text
    • https://www.pdfescape.com)/CreationDate(D:20190627192850-04In PDF document text
    • http://www.dynaforms.comIn PDF document text
    • https://fileset.3utilities.com/fix/toda/PDF link annotation
    • https://accurate-acidic-raja.glitch.meIn PDF document text
    • https://mjmicrofacility354.s3.us-east.cloud-object-storage.appdomain.cloud/faculty.htmlIn PDF document text
    • https://foul-amazing-diver.glitch.me/847321.htmlIn PDF document text
    • https://www.pdfescape.comIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://www.microsoft.com/typography/ctfontshttp://fontfabrik.comYouIn PDF document text
    • http://www.microsoft.com/typography/fonts/default.aspxIn PDF document text
    • http://crl.microsoft.com/pki/crl/products/MicrosoftTimeStampPCA.crl0XIn PDF document text
    • http://www.microsoft.com/pki/certs/MicrosoftTimeStampPCA.crt0In PDF document text
    • http://www.microsoft.com/pkiops/crl/MicCodSigPCA2011_2011-07-08.crl0aIn PDF document text
    • http://www.microsoft.com/pkiops/certs/MicCodSigPCA2011_2011-07-08.crt0In PDF document text
    • http://crl.microsoft.com/pki/crl/products/microsoftrootcert.crl0TIn PDF document text
    • http://www.microsoft.com/pki/certs/MicrosoftRootCert.crt0In PDF document text
    • http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl0^In PDF document text
    • http://www.microsoft.com/pki/certs/MicRooCerAut2011_2011_03_22.crt0��In PDF document text
    • http://www.microsoft.com/pkiops/docs/primarycps.htm0@In PDF document text
    • http://www.microsoft.com/TypographyIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00000998.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x998 44868 bytes
SHA-256: 7ccdc54d4a5d2541bce8f1dee503ba323e5b4f52fe509013eec5ab87a8540bdc

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