MALICIOUS
226
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
T1059.007 JavaScript
This PDF document exhibits characteristics of a social engineering attack, specifically a ClickFix variant, designed to trick users into executing commands. The presence of numerous external links, many pointing to disposable hosting, suggests a link farm intended to distribute malicious content or redirect users to phishing sites. The ML classifier and ClamAV detection strongly indicate malicious intent, likely involving the download and execution of a second-stage payload via the embedded URLs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 7
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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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ClickFix social engineering attack high SE_CLICKFIXDocument instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
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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://gimoguvi.ru/strik?utm_term=how+to+scan+with+a+laserjet+m1212nf+mfp PDF link annotation
- https://vutakajar.weebly.com/uploads/1/3/4/8/134896426/9631594.pdfIn PDF document text
- https://bixirugabo.weebly.com/uploads/1/3/0/9/130969405/513637c2e6.pdfIn PDF document text
- http://about-central.com/75313527200lulb7.pdfIn PDF document text
- http://alex-chekalev.com/importance_of_taprootwe7bn.pdfIn PDF document text
- https://dazuvekojuj.weebly.com/uploads/1/3/4/8/134863877/demaxuwadubem.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/19ff93cd-1d64-452d-8e24-4119fcd97c55/kotiredogokin.pdfIn PDF document text
- https://s3.amazonaws.com/pivetuzadujo/world_war_broadcast_package_free.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/72f822db-731a-4f6d-8b2c-b589a33ce346/busojok.pdfIn PDF document text
- https://9e1e9198-0fe7-4103-8084-fdcc6befb8d5.filesusr.com/ugd/2f7815_83af224f8aa4495ca61ebd25683c1715.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/9795d2a7-d5cd-496f-8ae5-fa98db70b4c2/how_to_program_thermostat_white_rodgers.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/10321de9-ab03-4b76-8691-af2c264a90f1/what_to_do_with_apple_tv_3rd_generation.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8cca7629-b7b2-4f3f-bbef-2639d823b063/ferapijunesolaza.pdfIn PDF document text
- https://ec451167-49e0-489e-a150-d7dc0ecf9264.filesusr.com/ugd/fe0276_ad670c8d55a64a37b54c8b4403484009.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/a11a48e1-6798-499c-a409-4684b8a0c284/jimufi.pdfIn PDF document text
- https://e25b7b56-d8f7-44cb-9276-56428e53d1cc.filesusr.com/ugd/63f3e8_e42260ed1a204bb0adc898bf2e73ba78.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/b7dfb510-462f-49e2-8ffd-ff39b28b9c99/how_to_use_m-audio_keyrig_49.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_off00011275.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11275 | 5568 bytes |
SHA-256: b4918736415d9e39483f419bbc4b364d249018b9135000ad6be1224592924e5a |
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font_01_sfnt_off00012558.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12558 | 12380 bytes |
SHA-256: dda101eefead9e71f00f7e71b3b0e749d40517c6bff9b5a04adea9c6f746b7d1 |
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