MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a link farm pointing to multiple domains, many of which are hosted on compromised CMS uploads, suggesting an attempt to distribute malware or conduct phishing. The presence of external URIs and a link farm heuristic strongly supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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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QR-code redirect lure medium SE_QR_LUREDocument instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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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 http://euro-ex.net/images/blog//file/kukedukur.pdf
- https://jamiatulbanat.in/wp-content/plugins/formcraft/file-upload/server/content/files/16086db78926b3---42165899350.pdf
- https://belgradenightlife.info/wp-content/plugins/super-forms/uploads/php/files/agh5qufk50kfffobcck7p15rj8/57619348715.pdf
- https://a1-recruitment.fr/v2011/Files/fck_upload/file/zufebipaxilenitadu.pdf
- https://kachhiproperties.com/wp-content/plugins/super-forms/uploads/php/files/evfhkni8encrgrdcp7j0sskd01/35486923912.pdf
- https://www.vedaaz.com/wp-content/plugins/super-forms/uploads/php/files/9211dcb3b2a7a972cf13e7e2d62ca783/19348417673.pdf
- http://kraljicabih.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a73fc89b324---valejetob.pdf
- http://becro-plast.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1606c68714a1f1---dajowoxozusofogimutonu.pdf
- https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/160736eab19221---didujikarupagevirozedekal.pdf
- https://bindazzled.com.au/wp-content/plugins/super-forms/uploads/php/files/088c185e37ba0decb20046f85fe93dc9/83843012224.pdf
- https://www.harnoordesigns.com/wp-content/plugins/super-forms/uploads/php/files/op2n0u2usph43mi64ksi3a89q5/32737952974.pdf
- http://446888.top/userfiles/file/46822854046.pdf
- https://nailseasupportgroup.com/wp-content/plugins/super-forms/uploads/php/files/90eb58fe5ca465b8ed87eb8b1b08414c/20348295049.pdf
- http://promador.pl/userfiles/file/72670096497.pdf
- http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/b9caf99b0dac762c82f3cfe56643f03c/37719902270.pdf
- http://ljhalls.com/wp-content/plugins/super-forms/uploads/php/files/8ac72a52130b2afa4a89fa977335d2f3/29103056083.pdf
- https://xn--64-mlcufjjaii0l.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/995bf7ecd4520c55061222ce291f8ccb/wikovavatogola.pdf
- https://iwnta.com/userfiles/file/98429380819.pdf
- http://www.putnamtaxi.net/wp-content/plugins/formcraft/file-upload/server/content/files/160c87a70ceabe---sekowemowuvapeduwapezu.pdf
- https://militarynetwork.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160d8d6764bb78---bafined.pdf
- http://kaowei.tw/image/files/20210526_181750.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=computer+application+book+for+class+12+pdf+english+medium
- 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_off0001b1e7.binc06ae263d3006cd066626fb218e978306142d66bf9eb4c43d619bc4c2bf8caf3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1B1E7 | 11604 bytes |
font_01_sfnt_off0001ccec.bin4573838cd1d96a5c507b298b35c9b7d66c5c7099ea4fa320060c9474ddfd0e70 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1CCEC | 19004 bytes |
font_02_sfnt_off00020003.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x20003 | 16792 bytes |
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