PDF malware analysis — malicious · 720df84c28db1ce1

MALICIOUS

PDF

80.3 KB Created: 2021-04-26 22:20:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: f2e2972dc4dc31648e8c315fc4c8cd3c SHA-1: 202e4cd1bacf06d2affaed0d246245546dc4d9bd SHA-256: 720df84c28db1ce11219dbabed787ff4522278d44c1ffaa073744cd0f7527c44

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL that likely serves as a lure for downloading a secondary payload, disguised as driver software. The document's structure and embedded URI suggest an attempt to trick the user into executing malicious content.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

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://jumiwimov.ru/strik?utm_term=mcp61pm-hm+rev+1.0b+drivers
- http://jedusajinud.mygamesonline.org/nemorafusupazax.pdf
- https://cdn-cms.f-static.net/uploads/4419828/normal_6017fe73a4d7e.pdf
- https://cdn-cms.f-static.net/uploads/4406228/normal_6034fd6cc0f37.pdf
- https://cdn-cms.f-static.net/uploads/4368245/normal_5fd66df71bd38.pdf
- https://cdn.sqhk.co/kawurefeki/j27hdja/januliwowoj.pdf
- https://static.s123-cdn-static.com/uploads/4411691/normal_5fee456bce3bc.pdf
- https://cdn.sqhk.co/mogizufofuj/jmFcafC/zuzudiguxigezozine.pdf
- http://ziwewixowele.sportsontheweb.net/el_cerebro.pdf
- https://cdn-cms.f-static.net/uploads/4381534/normal_60653e202fc73.pdf
- http://picfs.com/1auzk4
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/wudibirewuduto/87451644346.pdf
- https://s3.amazonaws.com/pululusodogi/11816608125.pdf
- http://torejejowomu.myartsonline.com/72227207363.pdf
- https://s3.amazonaws.com/jijari/gulag_archipelago_book.pdf
- https://s3.amazonaws.com/fotojipifuzitul/solving_quadratic_equations_mixed_worksheet.pdf
- https://s3.amazonaws.com/wulotugadag/blender_3d_printing_by_example.pdf
- https://s3.amazonaws.com/sazomo/38431637390.pdf
- https://s3.amazonaws.com/banula/56479320311.pdf
- https://s3.amazonaws.com/teximikamukubo/19400328359.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://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000eb5a.bin` `9e8301a812e0963997f2c69c75bfd39e7fcc44359b8a43baf6657440e065e79d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEB5A	2960 bytes
`font_01_sfnt_off0000f5ca.bin` `62689d6b612de030695200b22884e494260ad027ae272c25d8cabd3cf7464132`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF5CA	5688 bytes
`font_02_sfnt_off0001091a.bin` `7b9b753e2be5153c7e0ec79e74116e51f454b63faa225361ab6121266bb6a1b5`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1091A	12460 bytes

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