PDF malware analysis — malicious · d6227f676acbfa4b

MALICIOUS

PDF

79.3 KB Created: 2021-07-16 13:27:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)

MD5: 6d8611f6f6530605db11ea181192415e SHA-1: 5cd4640f20eaac81cd04427fc1156673dfc8732b SHA-256: d6227f676acbfa4b03db4b64ab6875357fcfe55f02c164c47251db180930e16e

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The embedded URL, although labeled as confirmed benign, is still a point of interest given the overall malicious verdict. The PDF structure itself contains no readable content, suggesting it's designed to exploit vulnerabilities or deliver a payload indirectly.

Machine Learning

Nyx PDF Classifier malicious score 0.9906

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/X6hrLWyzjlw/square?utm_term=foster%27s+home+for+imaginary+friends+free+episodes+online
- https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60edba28fd00b753b4acc0f3/1626192424835/44122056572.pdf
- https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60ee2b931cf0e6777f2d2804/1626221459886/58851781300.pdf
- https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60ed277d50bb312daecb27cb/1626154877765/pdf_the_lord_of_the_rings.pdf
- https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60e914fedefa333328aa13bd/1625887998170/86947048685.pdf
- https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60e7679c856bf3314cc7c80a/1625778076146/84312539015.pdf
- https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60e76db5d5c0eb2e2200f0da/1625779637193/81619020358.pdf
- https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60f0b86b0dcda21ba092b185/1626388587795/rirarosigodudozibep.pdf
- https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60f087ea82d96d30026837b4/1626376170215/60936782166.pdf
- https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60ee6a556bb0602df21440cb/1626237526074/wafavaxofux.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.

Filename	Kind	Source	Size
`font_00_sfnt_off0000d4b8.bin` `337af423c03751a27a741a47087e728ce75fc0655ca3db7f2ccb19c38d411b93`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD4B8	11072 bytes
`font_01_sfnt_off0000ee25.bin` `86b9fc554cbc7d4e5dcd2e033c354e8e5b2c66c1207e91b1d4c5921fb756fce0`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEE25	16560 bytes
`font_02_sfnt_off000118e0.bin` `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x118E0	16792 bytes

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