MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous external links, many pointing to disposable domains, suggesting a link farm or phishing operation. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of a malicious document designed to redirect users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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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://golowaki.ru/award?keyword=algebra+functions+worksheet+pdf PDF link annotation
- http://svoydvalend.xyz/40189920582e0lkz.pdfIn PDF document text
- http://sandwichhq.club/fodefonugekefanwk2b.pdfIn PDF document text
- http://vykupavto54.ru/diguxijepezuposagwqv5l.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/xupovobejanam/56690274021.pdfIn PDF document text
- https://18574fdc-dbe8-4f24-a3f7-ab3d6ff540e7.filesusr.com/ugd/d45bfa_57da11ea6a964ebe8d66532734b1f8ae.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/fotojipifuzitul/54961379033.pdfIn PDF document text
- https://b354d503-40d1-4c97-84b4-bc0b16c12f35.filesusr.com/ugd/8c7d07_ea9a64577ff84e5699945cb5da6ec3ef.pdf?index=trueIn PDF document text
- http://rixibedi.onlinewebshop.net/kovowozakemonevitavib.pdfIn PDF document text
- https://5b0e1d79-1acc-45ba-a965-31015372eee8.filesusr.com/ugd/67f5f7_ec05e3bb3631467189ae0520dd7b9187.pdf?index=trueIn PDF document text
- http://bamonoxo.onlinewebshop.net/how_to_get_learners_permit_in_south_carolina.pdfIn PDF document text
- https://3ecb585b-79b8-4502-8567-d9a17299c5c1.filesusr.com/ugd/4b874d_e3a133751bb04722ba1ead922358eda1.pdf?index=trueIn PDF document text
- https://165b0ab0-89c3-4517-b88f-e2bd0c55d975.filesusr.com/ugd/97b555_ade0b9df5a4c43c5b4d5eb2e45a7cd46.pdf?index=trueIn PDF document text
- https://814cba0f-f649-4223-bfe6-7884e6e02b9d.filesusr.com/ugd/c1108c_3044103f53124ed18cf3d83dba021dbd.pdf?index=trueIn PDF document text
- https://c3e780e1-a1ee-422e-80b3-2bf79490ff1e.filesusr.com/ugd/dc7b26_c6509a76dbf0494f9324c8e0ed5ca89c.pdf?index=trueIn PDF document text
- https://49b821e7-ee7e-41b4-809b-d0417b8c1ddf.filesusr.com/ugd/927743_d5023850258f441ebeb1519dc47c65a2.pdf?index=trueIn PDF document text
- https://15e12281-0fef-4bb1-b284-2b61ddec1698.filesusr.com/ugd/6c5390_5394df9165c14431bdb90dce007409bc.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/dotivaf/90106072577.pdfIn PDF document text
- https://s3.amazonaws.com/nigimul/7639025167.pdfIn PDF document text
- https://2489a575-72f7-492f-b117-28cfe4a4d2a3.filesusr.com/ugd/d81705_63e7db92462d46d0b7e8b2a5d81c7c55.pdf?index=trueIn PDF document text
- https://fb075467-9d00-46c6-93ac-2b777f5e584b.filesusr.com/ugd/8bcd66_19edfc43b07049a093d57a75bab6d1c5.pdf?index=trueIn PDF document text
- https://b84c3727-5d5a-4c5d-9d5d-21cac87b3a69.filesusr.com/ugd/fdd6c2_0413a06afef9434f9eb113d342fd96c1.pdf?index=trueIn 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000dc39.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC39 | 5700 bytes |
SHA-256: d465d76b4472e3e80b4cf18a09c8a261b1f086a072b09d0f78e2ff3e9c3c88b0 |
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font_01_sfnt_off0000efab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFAB | 10268 bytes |
SHA-256: 4d1899463fe464eec7d9820633584ffcce2836d1a2df422a584ce798fac73d3d |
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