Malicious PDF — malware analysis report

Static analysis result for SHA-256 1af2598efabe73bd…

MALICIOUS

PDF

109.5 KB Created: 2022-04-23 16:48:52 Authoring application: File Contains Incorrect Schema Revit jardin (via FPDF 1.82) First seen: 2022-07-15
MD5: bf6e5be9402a1477f6940e7589cbc5b0 SHA-1: 93693e439abf7a8bad98e242d0da038ba8213cc8 SHA-256: 1af2598efabe73bdac4e18004e081571fd0a2e2413f52d433132edaedc2c5d6a
102 Risk Score

Malware Insights

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

The PDF document employs an advance-fee scam lure, attempting to trick the user into believing they are due a prize or funds that require payment for delivery. The embedded URLs, such as http://waldemarillegal.site/File-Contains-Incorrect-Schema-Revit/pdf/eurautoshop.com, are likely used to host or redirect to malicious payloads. The heuristic 'PDF_REPEATED_PAYLOAD_LINK_LURE' indicates that these links are repeatedly embedded to increase the chances of user interaction.

Machine Learning

  • Nyx PDF Classifier clean score 0.0007

Heuristics 3

  • Invisible/repeated PDF links deliver payload file critical PDF_REPEATED_PAYLOAD_LINK_LURE
    PDF uses invisible link annotations and points to a direct payload download. Repeated invisible links or lure-like payload names such as document/unlock/verify archives match malware-delivery PDF carriers where the page is only a prompt and the real payload is fetched from the linked URL.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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://waldemarillegal.site/File-Contains-Incorrect-Schema-Revit/pdf/eurautoshop.com
    • http://waldemarillegal.site/File-Contains-Incorrect-Schema-Revit/doc/eurautoshop.com
    • https://eurautoshop.com/wp-content/uploads/formidable/2/sun-and-moon-handbook.pdf
    • https://eurautoshop.com/wp-content/uploads/formidable/2/ohio-subpoena-medical-records.pdf
    • https://eurautoshop.com/wp-content/uploads/formidable/2/renew-dog-license-online.pdf
    • https://eurautoshop.com/wp-content/uploads/formidable/2/cadette-new-cuisine-badge-requirements.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off00001e0c.js
6e9cb0a4f64aeea01ad1297606b5047e80319c80a02e3ae28f4a562e6e9a9afc		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1E0C 4952 bytes
stream_017_off0001aa5c.bin
43b13684882d332187dbe2691d5e4f64c33a98e381a4dc2316374ba1b923b47c		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1AA5C 76950 bytes

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