MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, directing users to various external PDF files hosted on potentially compromised or disposable domains. The presence of a 'download button' lure further supports a phishing or social engineering attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://laborke.ru/uplcv?utm_term=idm+free+download+for+pc
- https://people11people.com/uploads/File/rurinotuvazedilexuruwov.pdf
- http://rowerowaszkola.pl/imgturysta/files/nenuvuko.pdf
- https://ms01bet.net/contents/files/22206255104.pdf
- http://mazdooradda.com/userfiles/file/89376600737.pdf
- http://transporteslaplata.com/imagenes_web/file/97024094180.pdf
- https://finestblogger.de/wp-content/plugins/super-forms/uploads/php/files/nur7p978cptnq2bt5uhbkbprtl/benetagasikimixaxativatut.pdf
- https://www.bouwenaaneensterkwerkgeversmerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16137d272aea0d---83398200353.pdf
- https://leuphuotcamap.com/uploads/image/files/viwixazununajole.pdf
- http://emilymillerlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/tagotomavexoge.pdf
- https://clinicscrm.com/img/files/96817965574.pdf
- http://areaengineeringsrl.eu/userfiles/files/92864520114.pdf
- https://xuanhongkhang.com/upload/files/99286456243.pdf
- http://www.aceitunasdelguadalhorce.es/ckfinder/userfiles/files/57314848373.pdf
- https://futurefacesmiami.com/uploads/file/3834929804.pdf
- http://hurtowniagrafit.pl/userfiles/file/75174187974.pdf
- http://nocleginaplus.pl/uploads/userfiles/files/lipelexusabumutepo.pdf
- https://bistro-8.com/wp-content/plugins/super-forms/uploads/php/files/72a466b4be5d6c48500142a9f2271db6/64587008089.pdf
- https://kebecelectrique.com/upload/editor/file/15670707649.pdf
- http://xn--82cac8d3ajrc0gd0bo4a7nf3qg.com/userfiles/files/punefuvizoniniwibak.pdf
- https://alistairmills.com/ckfinder/userfiles/files/vemupuxuxed.pdf
- http://tkhomedeco.com/assets/uploads/ckedit/files/20210914111202.pdf
- https://shidoremicrosys.com/media/rabegofilove.pdf
- http://bizwd.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130c7564e710---zimuziwizi.pdf
- http://studiocinti.eu/userfiles/files/dezolinisobevijinuwuxe.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_off0000db16.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB16 | 16792 bytes |
font_01_sfnt_off0000f328.bin5469b0424253431b6dfd5f268772070e0e512962e3fe52d8fb54b20a8dbdf7fc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF328 | 17092 bytes |
font_02_sfnt_off00011fd9.binc18b2e60699f6d4fdf135ee6233e25397ca7b0f07c131ffb1444ed4836838606 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11FD9 | 10460 bytes |
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