MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous links pointing to compromised WordPress sites, suggesting a link farm designed to redirect users to malicious content. The PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristic specifically highlights this tactic, which is often used for phishing or distributing further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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 http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/16078faf18a143---58101612425.pdf In PDF document text
- https://118highschool.am/wp-content/plugins/super-forms/uploads/php/files/816a0bfdc493d50917dbdb9659c38b16/xizojirozezowekekovopos.pdfIn PDF document text
- https://www.sussexweddingservices.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160d6ed10c294a---96347186309.pdfIn PDF document text
- https://balajihighfields.in/userfiles/file/79032614337.pdfIn PDF document text
- http://aeronautike.com/userfiles/file/38000637598.pdfIn PDF document text
- http://emotionpicturesfestival.gr/userfiles/file/suvunitojizadevigunadenev.pdfIn PDF document text
- https://www.histoiresdegroupes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ee0f3ccb8a---peleluwolalor.pdfIn PDF document text
- https://tavio.ru/files/file/39215237524.pdfIn PDF document text
- https://www.passion-rnd.com/upfile/files/2021/06/30/53268446678.pdfIn PDF document text
- http://uci.ir/userfiles/file/19843097318.pdfIn PDF document text
- http://neodev.space/wp-content/plugins/formcraft/file-upload/server/content/files/16080ec7dc50ae---bopebirevukeputevurutag.pdfIn PDF document text
- http://payassistinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d554456f3a---48940370608.pdfIn PDF document text
- http://travelci.ru/ckfinder/userfiles/files/11149584745.pdfIn PDF document text
- https://naucharts.com/ckfinder/userfiles/files/funapujodu.pdfIn PDF document text
- https://mattress-leader.com/media/dojejamavefimagur.pdfIn PDF document text
- https://impariant-club.ru/wp-content/plugins/super-forms/uploads/php/files/921d050f3694aac2e814da3e35803c74/63102918390.pdfIn PDF document text
- http://cohn-vossen.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b478141cbfb---wesuvuzopikupanikofexiju.pdfIn PDF document text
- http://www.knickmeier.net/images/pageimg/file/fomizogelifewojifevovojer.pdfIn PDF document text
- http://triumphtoday.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a86bb6c0ae5---jafawizipofebi.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a092a7a0ce8---delesobupolu.pdfIn PDF document text
- http://gennarimaq.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c91c9c640b6---mekexagoluf.pdfIn PDF document text
- http://famcareconnect.org/wp-content/plugins/formcraft/file-upload/server/content/files/16081209dca420---19538598430.pdfIn PDF document text
- http://salonlomi.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160ae51751af83---paperikem.pdfIn PDF document text
- https://bititechnika.com/uploads/file/rusofojufazedetozawiwu.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=simile+for+caringPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000efa7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFA7 | 17468 bytes |
SHA-256: d15acc2968794d04c9693a2ebe200ae6e1c1cb8d1ebe8bbdc431dff26d92c9e2 |
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font_01_sfnt_off00011cd1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11CD1 | 10488 bytes |
SHA-256: cd5aa9e75a7ac5a8b7d9f6eb8f9a18daa2b870ddafb1db3a593eeef25abb60e2 |
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font_02_sfnt_off0001349b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1349B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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