MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains embedded JavaScript and multiple external URIs, many of which point to compromised or disposable hosting. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' indicate a pattern of using such sites for distribution. The embedded JavaScript likely facilitates the redirection to malicious sites, potentially for phishing or further payload delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9909
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://simondaulte.com/ckfinder/userfiles/files/xuwobunabesave.pdf
- http://hasdeu.md/data/userfiles/files/44200121960.pdf
- https://guclupin.com/calisma2/files/uploads/28811589595.pdf
- https://avonsteel.com/UserFiles/file/44663323761.pdf
- https://emons-verlag.com/testarea/cwsCMSlight/media/files/8687384035.pdf
- http://unipsyclinic.com/userfiles/file/20210722134501.pdf
- http://xn--m1age8bh.xn--p1ai/files/file/19917093520.pdf
- http://protech.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/160985d1deec9a---58147289582.pdf
- https://gradeagroup.com/wp-content/plugins/super-forms/uploads/php/files/6d1oigi94lvper5od9dn64tbot/gozevitexox.pdf
- http://landroverbh.com/ckfinder/userfiles/files/jobitajepale.pdf
- http://vhs1962.com/clients/b/b9/b967f936f519796c2a696a6ed1da67f9/File/fagoditot.pdf
- http://jianianhuayule.a9188.com/upload_files/art_files/files/20210830_122930.pdf
- https://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098ca61a814f---bozoj.pdf
- https://www.certificagreen.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b5937044c3d---57694065239.pdf
- http://csc0731.com/userfiles/file/20210821150302_hwtezd.pdf
- http://www.deadclan.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608bd8e392ad5---nuforulizulok.pdf
- http://paulsaperstein.com/userfiles/files/rerajo.pdf
- http://atdawnwelift.com/userfiles/file/dufunidileroboziwogume.pdf
- http://actinq.nl/upload/file/sefebopufetoxofudosow.pdf
- http://www.stockholmswingallstars.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c06389a0b18---maxolubadezalupere.pdf
- http://szwygs.com/upload/lozerewatufedipaxopor.pdf
- https://almuhja.net/ckfinder/userfiles/files/80557830869.pdf
- http://herfon-machinery.com/images/ckfinder/files/20210713041420.pdf
- http://jaatkinson.com/userimages/25944956330.pdf
- http://theopenhouseclub.com/wp-content/plugins/super-forms/uploads/php/files/d1f53a323013c6e3bc24455edb8fa75a/gijodafesa.pdf
- https://www.propertyfilevault.com/wp-content/plugins/super-forms/uploads/php/files/4f3ff217db3cd7ef613bf38c265f46aa/26244503869.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=pdf+converter+bot+telegram
- https://mediacentre.aerlingus.com/js/ckfinder/userfiles/files/gipazidokufilo.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_off0000b97a.bin5a67d63bd6248ab81076bb5460f3446ac57c180014630dbbd430eeed93e42e2a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB97A | 15200 bytes |
font_01_sfnt_off0000e013.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE013 | 16792 bytes |
font_02_sfnt_off0000f82a.binb334df010de99f2831ad4689667c79dbe2dbf293154b1b784e7c05687095e437 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF82A | 10764 bytes |
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