MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous external links, many pointing to compromised CMS upload directories or disposable hosting, suggesting a link farm designed to redirect users. The PDF structure and embedded links are consistent with phishing or malware distribution campaigns.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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://crysiq.ru/uplcv?utm_term=literature+review+in+quantitative+research+pdf PDF link annotation
- https://dagvandearchitectuur.be/_files/file/23205460683.pdfIn PDF document text
- https://perfecthospitals.org/FCKeditor/file/guzirizin.pdfIn PDF document text
- http://naturallabs.de/userfiles/file/35583295586.pdfIn PDF document text
- https://landlorddebtadvisory.com/wp-content/plugins/super-forms/uploads/php/files/4b425e2333b71e60b97c45d2818a5617/33234542808.pdfIn PDF document text
- https://htapigroup3.com/contents/files/rumizakuzimune.pdfIn PDF document text
- http://appartementslisa.it/an3_Uploads/file/4002872817.pdfIn PDF document text
- http://hyeminshop.com/DATA/files/mepegawowowukonakif.pdfIn PDF document text
- http://brukikostka.pl/uploads/page/file/golebixunanulube.pdfIn PDF document text
- http://mebco.ru/images/file/giwerati.pdfIn PDF document text
- http://hifitness.hu/userfiles/file/sosuwugeragojuwojumujig.pdfIn PDF document text
- https://grandplaza.bg/uploads/assets/file/dusemazejapobowoxosotutu.pdfIn PDF document text
- http://preiss.at/upload_files/files/19011367661.pdfIn PDF document text
- https://www.frontierexim.com/wp-content/plugins/super-forms/uploads/php/files/r54i1k2dun0o0iqcrjhu5h9t6i/mutisurezura.pdfIn PDF document text
- http://tecniagua.es/uploads/ckfinder/files/31741494546.pdfIn PDF document text
- https://emotionalgift.com/ckfinder/userfiles/files/novarokaxu.pdfIn PDF document text
- http://www.everhouse.lt/wp-content/plugins/formcraft/file-upload/server/content/files/16145cbb45d0b3---62956170767.pdfIn PDF document text
- https://tungafilm.com/dorceiys/ckfinder/userfiles/files/30381099295.pdfIn PDF document text
- http://www.patricktennis.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161445ae55c865---67590505959.pdfIn PDF document text
- http://kfbma.org/files/fck/file/43833698254.pdfIn PDF document text
- http://kargiskola.ge/myadmin/ckeditor/ckfinder/userfiles/files/tagizaxefopipanoroxumegel.pdfIn PDF document text
- http://bielle-srl.com/userfiles/files/nifuxesaremekad.pdfIn PDF document text
- https://padservhosting.com/userfiles/file/palovi.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_off0000de69.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE69 | 18568 bytes |
SHA-256: 37886bf7d0ef8a7fae10033f0ee0bc0e7f2b2895b0f5878ea98dba4eccfa0696 |
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font_01_sfnt_off00010ec3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10EC3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000126da.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x126DA | 10904 bytes |
SHA-256: b7abb15eb8d81326dbf7e9100b7b58705e53891bf58ab592299b9adff59c32c2 |
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