MALICIOUS
146
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, exhibiting characteristics of a callback phishing lure. The document body is heavily obfuscated, but heuristics indicate it's a link farm with numerous external URIs, suggesting it's designed to redirect users to malicious sites. The presence of PDF-specific rules and the overall structure point towards an exploit embedded within the PDF to facilitate further malicious activity.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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://ketchas.ru/uplcv?utm_term=nicole+real+housewives+of+cheshire PDF link annotation
- https://proxus.nl/file/rabifuriporoxudegizaf.pdfIn PDF document text
- http://www.findvoters.com/userfiles/file/peful.pdfIn PDF document text
- http://architettosirocco.it/userfiles/files/gafenuwerigowemovitarir.pdfIn PDF document text
- https://groupburuemas2.com/contents/files/27799212803.pdfIn PDF document text
- http://global-leasing-management.com/uf/file/zoxusurakebotewis.pdfIn PDF document text
- http://qianxish.com/ckfind_image/files/26764733159.pdfIn PDF document text
- http://dsfly.com/uploads/files/lelajut.pdfIn PDF document text
- http://maybaobidinhdinh.com/upload/files/nugaluf.pdfIn PDF document text
- http://vtdsbinhthuan.vn/public/uploads/userfiles/file/togobuxakebit.pdfIn PDF document text
- http://bienbao.net/uploads/files/6916221677.pdfIn PDF document text
- https://prolocolidodisavio.org/ckfinder/userfiles/files/vonuvuxoxabutekodejofuze.pdfIn PDF document text
- http://ministryofrum.com/memlogos/file/voneruxepewexuluvezenulam.pdfIn PDF document text
- http://support-cmu.com/filedata/file/8043884818.pdfIn PDF document text
- http://akpanlawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/guwumafawasutolako.pdfIn PDF document text
- https://vickers-electronics.co.uk/wp-content/plugins/super-forms/uploads/php/files/a02d1f5e4f229a253041532fb87a8b57/15526617875.pdfIn PDF document text
- http://vonschickenfremont.com/uploads/files/21423300864.pdfIn PDF document text
- http://safiorida.nl/operatori/userfiles/file/16269710200.pdfIn PDF document text
- http://www.niceresidence.net/image/upload/File/telinaguvijezejavela.pdfIn PDF document text
- https://popa.com.br/wp-content/plugins/super-forms/uploads/php/files/4a4707b2558bada8bc0a74c227b18011/16708732314.pdfIn PDF document text
- https://giaiphapthietke.vn/media/file/files/88295341704.pdfIn PDF document text
- https://hediyelikhanem.com/calisma2/files/uploads/78930524968.pdfIn PDF document text
- https://goldfieldssanddrags.com.au/ckfinder/userfiles/files/fifekagugusomexemo.pdfIn PDF document text
- https://medicentrumnz.eu/medicentrum/files/file/54389397031.pdfIn PDF document text
- https://topclassgardening.nl/images/file/vaxogaxidezitotujivowuku.pdfIn PDF document text
- https://babetravelling.com/ckfinder/userfiles2/files/zuliletebedalamib.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_off0000f221.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF221 | 10460 bytes |
SHA-256: ff3f2781c84be4a1fd61c33322bd17fba4457d35b2fcd760515d3303a96a1564 |
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font_01_sfnt_off00010a0e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A0E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012220.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12220 | 20112 bytes |
SHA-256: d05aaa5f3d924744d84378a4ef7740cb72d83a5bc95646afc15926fa08a3044b |
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