MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
The PDF file was flagged by multiple heuristics as containing a link farm and was detected by ClamAV as a phishing trojan. The document body is heavily obfuscated, but the presence of numerous external URIs, many hosted on compromised or disposable domains, strongly suggests a phishing or malware distribution attempt. The ML classifier also provided a high confidence score for maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe 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.
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Embedded URL info EMBEDDED_URLOne 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://mindspacepsytherapy.com/upload/ckfinder_temp/files/20210615164511.pdf
- http://hyundainhapkhau.net/upload/files/78768123089.pdf
- https://3dreamstudios.com/wp-content/plugins/super-forms/uploads/php/files/fc6c88e0ee84917aa03106717a5a9e75/20234251312.pdf
- https://wemservice.com/ckfinder/userfiles/files/94595509095.pdf
- http://koopmankennedyfeller.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/jukekuzinikekofekeli.pdf
- http://bestbuyfromindia.com/userfiles/file/balusajivonojoruzev.pdf
- http://yogo110.com/userfiles/file/lafivon.pdf
- http://www.saraviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aec4302bfb8---20989394598.pdf
- http://robbes.nl/media/files/21717034619.pdf
- https://olgapopovaphoto.com/wp-content/plugins/super-forms/uploads/php/files/cb9f9b656b4d2db310494efcc74926a9/22075638978.pdf
- https://laihouston.com/wp-content/plugins/super-forms/uploads/php/files/b6e2e61257a4e830916b353e7062e37f/32296158808.pdf
- http://azizolace.cz/images/file/35635680486.pdf
- https://efnnma.org/files/file/26143184728.pdf
- https://controlcert.se/wp-content/plugins/formcraft/file-upload/server/content/files/160fa787b3765e---95244018164.pdf
- http://www.ausafrica.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16077d066e0566---58917827724.pdf
- http://sportingclubalbinia.eu/userfiles/files/27066735094.pdf
- https://www.cir.cloud/wp-content/plugins/formcraft/file-upload/server/content/files/160a05194c2e91---wepoxapawigozuzojesojub.pdf
- http://findusafranchise.com/files/files/42107949547.pdf
- http://rhodeislandalpha.com/clients/56223/File/biboranagifew.pdf
- http://anvlaw.com/userfiles/file/tepalebidaneseva.pdf
- https://thepetrichortouch.com/wp-content/plugins/super-forms/uploads/php/files/pi33buq4j82b66pv5uhbt7atj5/wujixararimemotimufofizi.pdf
- https://anjingliar.com/contents//files/rejutewaxomovomapiz.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=comcast+support+phone+number+1+800
- 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_off0000d54d.bin894ec96fae47579627ca0466436ff82e6e88d90d21a8475b626bcfdfe5197d76 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD54D | 11152 bytes |
font_01_sfnt_off0000ef12.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF12 | 16792 bytes |
font_02_sfnt_off00010724.bin2a13ce22a14767744edc33d876b7ec9a14f9421549a07ee0f7b528e62f8e2bb3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10724 | 17308 bytes |
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