PDF malware analysis — malicious · dda64a34e6e7a82e

MALICIOUS

PDF

78.4 KB Created: 2021-07-17 15:46:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)

MD5: a3ad1f72ecc5baf132da1dfb0c331e5b SHA-1: 2bf1d890fdf03603ced2811d4c9a488c92dc829f SHA-256: dda64a34e6e7a82ebd16556e6322f25233c5cadf9c195ba56951e915d5e70917

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. The embedded URL within the document's annotations, while appearing benign in reputation checks, is indicative of a phishing attempt to redirect the user to a potentially harmful site. The presence of external URI heuristics further supports this.

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/uzX87CUNjRg/square?utm_term=best+family+crossbreed+dogs
- https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60f080bce8848a1fc245f453/1626374332258/zulufovexeki.pdf
- https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60f1145ee013e242e7136a9a/1626412126692/gypsy_king_boxer.pdf
- https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60ed3ba16bb85f4a8d849253/1626160033901/ramsey_county_property_tax_records.pdf
- https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60ee70b7e9cbfe6c2feb136c/1626239159476/cotton_production_in_world.pdf
- https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60eda9a7573bc4731c8aa611/1626188200418/11643465803.pdf
- https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60f0feacc9cf4d400009fc3e/1626406572994/get_around_meaning.pdf
- https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60e87af608fe1b460e6ed0b7/1625848566826/vehicle_inspection_checklist_template_word.pdf
- https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60e87249e19ac06d9c5cdec2/1625846345306/lofiferexivinexo.pdf
- https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60f0fc8afe1af12ac2c18561/1626406026561/85746286766.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_off0000d0ef.bin` `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD0EF	16792 bytes
`font_01_sfnt_off0000e901.bin` `d5e8cd8ae65805cb9454ce267f3434a45343243865239cecd82695715fa49314`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE901	16624 bytes
`font_02_sfnt_off0001140c.bin` `ba4275e13ca8a29ecbdd94a512346ee58c9c7117652113a7dfe4518da4ab1b28`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1140C	11024 bytes

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