MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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 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://xajibur.ru/wix?keyword=redox+reactions+worksheet+with+answers+pdf PDF link annotation
- https://cdn.sqhk.co/rozesivotix/ibxjbia/domestic_courier_services_near_me_open_now.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4446923/normal_5fec1be5abbc1.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4418197/normal_6023d2587f5d3.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4450337/normal_6040267973e72.pdfIn PDF document text
- https://cdn.sqhk.co/kitijorawul/djjMjie/boom_boom_football.pdfIn PDF document text
- https://cdn.sqhk.co/nuvexajamu/hjehdig/top_rechargeable_battery_for_sale.pdfIn PDF document text
- https://cdn.sqhk.co/xeliwiwogivo/jcJK6jb/long_nails_ideas_2020.pdfIn PDF document text
- http://bepelisufozasep.mywebcommunity.org/mopezulexaxemawitapida.pdfIn PDF document text
- https://cdn.sqhk.co/kofuvufexo/2ihbjba/c_compiler_ide_for_ubuntu.pdfIn PDF document text
- https://cdn.sqhk.co/pijavagoke/Oha1gjj/ruzatukubavavukejogiruwap.pdfIn PDF document text
- http://kejumazinanu.mywebcommunity.org/exercises_test_beginner.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4402246/normal_6000a10f1a0eb.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4503617/normal_6018545adfd5b.pdfIn PDF document text
- http://naliputa.mywebcommunity.org/53770812897.pdfIn PDF document text
- https://cdn.sqhk.co/puxolika/asjgePl/54724417852.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://2a082fd4-e93f-4b8e-9e59-408fa046b31c.filesusr.com/ugd/e334dd_73eb726eae32428dbe359c44e0b96b89.pdf?index=trueIn PDF document text
- https://f7cac2f2-528f-490f-9bef-cb2448a877de.filesusr.com/ugd/529ba0_6c8a93aae497404aa41919a5c7241c2d.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/fb49ecb4-f163-4ed2-aa01-c9a3862bcd7b/how_to_fix_lg_washing_machine_ue_error.pdfIn PDF document text
- https://858e1da1-ad31-4e5b-aec0-89c59c6c71f6.filesusr.com/ugd/6240f8_ddc1d2ea9f2f44cd828e2dc7c511d4d6.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/da6684ef-0df0-4d9b-88e7-b46f3895cdd3/babinukovokolupoge.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1df1fed0-1bca-47bc-bc2a-e9f1e8ef0614/momovekiwunojanidit.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/cec721d8-c06a-4ce0-b7fc-70826dc40dba/what_is_the_catch_22_in_the_book_catch_22.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://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_off00010251.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10251 | 5440 bytes |
SHA-256: 5782ad456c69cbdb701f8eb93f64bb1e95e63c1fc7fa66af30747d4fc2947605 |
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font_01_sfnt_off000114ed.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x114ED | 10876 bytes |
SHA-256: 9d77a7d41d2f65c785dbc364c4c13c71720616476b6aac491c4e2c582fcfb072 |
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