Malicious PDF — malware analysis report

Static analysis result for SHA-256 0eed1278dececeba…

MALICIOUS

PDF

77.1 KB Created: 2021-07-18 04:13:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: ef457f4499ce42f30c1df05fee7b2125 SHA-1: da97482e18f3bab71c7857e4a85f4ecd29223603 SHA-256: 0eed1278dececeba703f2b6804db5824eb2aee24e207d1646e91a165afacff3b
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. The presence of an embedded URI points to a potential phishing or malware distribution attempt. While no scripts were explicitly extracted, the PDF structure and heuristics suggest it's designed to redirect users to external content, likely malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7390

Heuristics 4

  • 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://feedproxy.google.com/~r/sq/ugae/~3/5VO7y1TeAqQ/square?utm_term=how+many+quarts+in+a+quarts+in+a+gallon
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60e945b692abcc18c4f742ba/1625900470667/would_have_been_made.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60f0a644c07ec5325bc7927f/1626383941003/14200692177.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60ed392da17c7f1bf0015fb4/1626159405994/63129782397.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60e8426e85181504630b87df/1625834094977/69793259862.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cd77.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCD77 16792 bytes
font_01_sfnt_off0000e58e.bin
28344ee0c9245d853c33280465265cc568534dcd364bee3c05ac05ca2d672ce6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE58E 10756 bytes
font_02_sfnt_off0000fdf9.bin
e5d91336ac946a2914b01c79768e5985dff91be8e80d429c84fab8ab956c0d23		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFDF9 16292 bytes

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