MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, containing numerous external URIs pointing to various domains, suggesting it's designed to redirect users to potentially harmful websites. The presence of a large number of external links, some on disposable hosting, further supports this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://nipisod.ru/strik?utm_term=libros+ap%25C3%25B3crifos+enoc+pdf PDF link annotation
- https://nirumoxizexajiv.weebly.com/uploads/1/3/4/5/134524745/3642629.pdfIn PDF document text
- https://wifevotus.weebly.com/uploads/1/3/4/8/134897576/kefuz_titifafelas_lilutepajopider.pdfIn PDF document text
- https://revafabeku.weebly.com/uploads/1/3/4/7/134708131/podowukan-fulupemi-gerufutakapuxaz-nupigomiburo.pdfIn PDF document text
- https://tujozidu.weebly.com/uploads/1/3/4/6/134694944/3793556.pdfIn PDF document text
- https://kedefakoriwo.weebly.com/uploads/1/3/1/1/131164231/mokororuxavuzogojo.pdfIn PDF document text
- https://lanulizuxuja.weebly.com/uploads/1/3/4/6/134658029/jitanuk.pdfIn PDF document text
- https://posofipijetudu.weebly.com/uploads/1/3/1/3/131380531/6c13c66e.pdfIn PDF document text
- https://jadomuvifaxa.weebly.com/uploads/1/3/5/9/135960305/0bae8.pdfIn PDF document text
- https://vekoduxiboba.weebly.com/uploads/1/3/1/3/131398498/2738609.pdfIn PDF document text
- https://mefixakiderix.weebly.com/uploads/1/3/4/3/134319494/9135532.pdfIn PDF document text
- https://jabasamivesapev.weebly.com/uploads/1/3/4/0/134041177/forosibixadina_gorujujadobasi_fupej.pdfIn PDF document text
- https://dopupuwupexiro.weebly.com/uploads/1/3/0/8/130813117/4552566.pdfIn PDF document text
- https://pemilelolobuwi.weebly.com/uploads/1/3/4/8/134881311/df83486debf6fe.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://bf808793-8b46-4c54-8b11-319763181fa0.filesusr.com/ugd/0d018b_458443c83d074911bcfd94a44e410625.pdf?index=trueIn PDF document text
- https://fa53e508-d88d-41cb-897c-7a5b6f1bfcc3.filesusr.com/ugd/361045_2eca7ab189874668934532f1a43f7ed9.pdf?index=trueIn PDF document text
- https://3fb740b9-71d8-4183-8edb-de11b68c0a29.filesusr.com/ugd/1fbf8b_1d3bcaa3ff794e73a5022a923f557755.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/54f97910-7c0f-4668-aaae-4ce5c7d5db3e/dopupepi.pdfIn PDF document text
- https://d3826037-6016-486c-99e9-dc41bc666644.filesusr.com/ugd/b81754_fefb87e71f9743db85bd44896050c78e.pdf?index=trueIn PDF document text
- https://a7193630-a032-4ee2-b136-33837135b76a.filesusr.com/ugd/fac845_4389127703eb41febae1969be8392174.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/8345ffb7-214d-47f0-9fb0-82d133d432fb/motorola_cp200_programming_software_free.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_off0000f3be.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3BE | 5332 bytes |
SHA-256: 5201f7c3883cd84ce19417e55e03c50f540cc89b7543e007e810aee40917ae0c |
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font_01_sfnt_off000105ab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x105AB | 11812 bytes |
SHA-256: abf3061bfee6f5b20b80fe74040200fdf6423208e65a74bc986ccf7ad04dfe1c |
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