MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of embedded links, many pointing to disposable hosting, indicating a link farm or SEO manipulation tactic. One critical heuristic identified a link to known malicious redirector infrastructure. The ClamAV detection and ML classifier further support its malicious nature, likely as a phishing or redirection tool.
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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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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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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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://crophysi.ru/wb?keyword=calculo%20integral%20e%20diferencial%201%20pdf In PDF document text
- https://weralafopibobal.weebly.com/uploads/1/3/4/3/134338927/gopunuxef.pdfIn PDF document text
- http://kowezuzapine.66ghz.com/32329732367.pdfIn PDF document text
- https://cdn.sqhk.co/nesuxozajek/ieigjii/riders_republic_gameplay.pdfIn PDF document text
- https://cdn.sqhk.co/letopoto/jjLd0hj/descargar_boris_and_the_dark_survival_apkpure.pdfIn PDF document text
- https://cdn.sqhk.co/bujerinalo/jh8ZjbM/53279482335.pdfIn PDF document text
- https://cdn.sqhk.co/numovasovev/5Iiigcb/monkey_face_meme_meaning.pdfIn PDF document text
- https://cdn.sqhk.co/noxibogalu/sTggvX8/melazigorageloxulinenob.pdfIn PDF document text
- https://cdn.sqhk.co/gewanunu/bgeiclr/93527240224.pdfIn PDF document text
- http://jijimaxugixu.22web.org/54915467250.pdfIn PDF document text
- https://mewurotimopu.weebly.com/uploads/1/3/1/3/131381658/kikazefupu.pdfIn PDF document text
- https://pibubeje.weebly.com/uploads/1/3/4/3/134374065/3673290.pdfIn PDF document text
- https://cdn.sqhk.co/gitogozune/eZijaij/motorcycle_speedometer_repair_cost.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/woxewiwupir/how_to_use_printable_vinyl_with_cricut_explore_air_2.pdfIn PDF document text
- http://lejonawazemu.rf.gd/arkham_city_riddler_trophies_guide.pdfIn PDF document text
- http://xawabaxazulaga.epizy.com/online_application_form_for_scholarship_in_canada.pdfIn PDF document text
- https://s3.amazonaws.com/sinadi/barcode_scanner_app_android_source_code.pdfIn PDF document text
- http://nodikisiti.rf.gd/zokikel.pdfIn PDF document text
- https://s3.amazonaws.com/jaloto/xujipajakalogul.pdfIn PDF document text
- http://vusizudufekope.epizy.com/capteur_d_humidit_du_sol_arduino_datasheet.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00012303.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12303 | 5104 bytes |
SHA-256: 3351ada636e534e2bcaef8adfca19952e202d60caa1b37eca7678708f94da7bf |
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font_01_sfnt_off00013469.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13469 | 2236 bytes |
SHA-256: 333be68832cf78dbb406e2542f112ea99daf6f5dc3d8f915ab9158e328b3f484 |
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font_02_sfnt_off00013e82.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13E82 | 15036 bytes |
SHA-256: 87427b7641714fdccea8b10cb93e9aa13fa0076d9f0fdafa4fcb07e91aa0efe9 |
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font_03_sfnt_off00016c9c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16C9C | 16100 bytes |
SHA-256: f31ef33cd1418af70f2cd5bddee589327d3a7e05e0c65bbf887899c424c93dad |
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