MALICIOUS
156
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. Heuristics reveal it functions as a link farm, directing users to compromised WordPress uploads and other potentially malicious sites. The presence of numerous external URIs and link farm indicators suggests a phishing or SEO poisoning attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9860
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://queure.ru/uplcv?utm_term=what+is+the+collective+noun+for+robbers PDF link annotation
- http://poornasreehomeoclinic.com/ckfinder/userfiles/files/taxuzerin.pdfIn PDF document text
- http://swhwsolution.it/ckeditor-ckfinder-integration/uploads/files/70898623469.pdfIn PDF document text
- https://oneremote.ru/wp-content/plugins/super-forms/uploads/php/files/f040d0f7438f993b7b2a460c22c9edb2/fevevisinowuvodotej.pdfIn PDF document text
- http://coreaad.com/DreamDataUpload/file/92918435373.pdfIn PDF document text
- http://wolfroccatiassociati.it/userfiles/files/23337153755.pdfIn PDF document text
- http://fructusartis.com/i/File/76250987498.pdfIn PDF document text
- http://urotunisia.com/uploads/FCK_files/file/gikobev.pdfIn PDF document text
- http://bodemveenweiden.nl/bodem-veenweiden-img/pitejewiwuvoxax.pdfIn PDF document text
- https://petala.gr/userfiles/file/21420520926.pdfIn PDF document text
- https://www.hauptsache.cc/wp-content/plugins/formcraft/file-upload/server/content/files/1613c602b73a75---30871535827.pdfIn PDF document text
- http://www.kliningstroy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1613d23a256470---lekavuludibibozerabopo.pdfIn PDF document text
- https://hongmao.tw/uploads/files/202109130954285347.pdfIn PDF document text
- http://ambulanceservice.pl/userfiles/file/47233032987.pdfIn PDF document text
- http://goang-hann.com/uploads/files/202109020931221950.pdfIn PDF document text
- http://autosoftware.company/autoresponders_images/files/52180586325.pdfIn PDF document text
- http://edumedcare.pl/upload/files/31672612988.pdfIn PDF document text
- https://majubesar.org/contents/files/92919876854.pdfIn PDF document text
- https://hobbypet.cz/files/file/3615894668.pdfIn PDF document text
- http://orchid-daikanyama.com/userfiles/file/nexakixagagabugow.pdfIn PDF document text
- http://umhouses.com/uploads/files/bimexatulojanusivevugosib.pdfIn PDF document text
- http://fvv-hohenfelde.de/sites/default/files/files/65474225859.pdfIn PDF document text
- https://dampinggame.com/calisma2/files/uploads/popozixutukak.pdfIn PDF document text
- https://hightechrustremovers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161361e38d78fe---2991127339.pdfIn PDF document text
- http://innova-perila.ru/upload/files/65906058407.pdfIn PDF document text
- https://www.c2commercial.com/wp-content/plugins/super-forms/uploads/php/files/f68e5d8e00f618e745261ab2a8af51f4/gerit.pdfIn PDF document text
- http://floral-design-lindgens.de/userfiles/file/18746098451.pdfIn PDF document text
- 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_off0000e223.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE223 | 10732 bytes |
SHA-256: e0f5dadbeed190897ddef97b0b08d30f8e699ba411fe413664d6fe33cfbbc2a6 |
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font_01_sfnt_off0000fac6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFAC6 | 18296 bytes |
SHA-256: 9e526756889a366ff7bf4c7a1469e505545bd60aca227e71278ad6ecf4863f41 |
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font_02_sfnt_off00012a81.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12A81 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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