PDF malware analysis — malicious · eedc0a5b085a7dab

MALICIOUS

PDF

77.1 KB Created: 2021-07-12 20:17:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)

MD5: ec18af3cdf5df5881950e6044a8e8af2 SHA-1: 53450fab96b75ba9c12b13ed1c3bf6142bd3988e SHA-256: eedc0a5b085a7dab61d8f22af338029c9bc5e6d444e6733ebcef8bc917c3c183

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL that redirects to a suspicious domain, likely intended to lure the user into a phishing scheme. No scripts were extracted, but the PDF structure and external URL indicate a phishing attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9937

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://pistant.ru/square?utm_term=boil+corn+before+grilling
- https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60e79d32872c4c6263c16b54/1625791794868/lizarar.pdf
- https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60ec77bd3a853d606aeb35fe/1626109885722/vupeturasapavibilusumiku.pdf
- https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60e870327b15e47d75819579/1625845810490/small_intramural_fibroid.pdf
- https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60ec7819ef188817f7e0440a/1626109977946/mipideduvazarewegurap.pdf
- https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60e8594f74e14172ddf2310b/1625839951470/41011446630.pdf
- https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60e95271309bd63f3d87803d/1625903729728/69524089074.pdf
- https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60ec73354c0b954f9ea29550/1626108725324/dawerid.pdf
- https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60ec78ec59713006cbe0392b/1626110189634/intermediate_accounting_chapter_19_solutions.pdf
- https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60e946ce025aa46e30d40aee/1625900750989/top_20_richest_companies_in_the_world.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_off0000cd6b.bin` `1701492b5ba3ee7594677fc6c3caf3077b31a4962fc6167a7b94620a78e0b57b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCD6B	10276 bytes
`font_01_sfnt_off0000e49f.bin` `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE49F	16792 bytes
`font_02_sfnt_off0000fcb1.bin` `79ff0cdd462a7723fdfa200fb5f13e58cd5c647fed44e2ea6f14347baebd1bb0`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFCB1	16848 bytes

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