MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was flagged as malicious by a ML classifier and ClamAV, indicating a high likelihood of malicious intent. It contains a large number of external links, many pointing to disposable hosting, suggesting a link farm designed to distribute malicious content or phish users. The embedded URLs and the document body, which appears to be a garbled representation of search result metadata, support the attack pattern of luring users to external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9987
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://wastran.ru/pbw?utm_term=solving+systems+of+differential+equations+with+laplace+transform+pdf PDF link annotation
- https://cdn-cms.f-static.net/uploads/4426063/normal_606e67ef430f2.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4410433/normal_6029f2fc4c2df.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4481828/normal_601c73156aed8.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4465694/normal_603051f2a9c5e.pdfIn PDF document text
- https://kibujedazem.weebly.com/uploads/1/3/5/3/135347543/zimodenoxopi.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4471969/normal_5fe5d9ef9a8bf.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4412183/normal_60479207d4dff.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4465024/normal_60bd467765ed8.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4393362/normal_60521e53d5dd7.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4482216/normal_60595128681a0.pdfIn PDF document text
- https://vezafowifav.weebly.com/uploads/1/3/1/6/131637603/lewagisofi-zajivuwitas-bezokex-joponezofolonu.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/8fea5d96-3aa6-4cb0-99f8-119273c3baf3/40550462487.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e491d6d0-4662-499e-8cc8-77fdbe489880/63734090912.pdfIn PDF document text
- http://medodadepud.pbworks.com/f/vpn_proxy_master_premium_cracked_apk.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2448895b-86d2-4ef5-af20-135a1ef34bf4/lijoxivuzatabugejowimuzu.pdfIn PDF document text
- http://ralogotuxa.pbworks.com/w/file/fetch/145149450/inequalities_practice_worksheet.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/fa89eaf2-96f2-4ee4-ab2c-c55f4d8b324f/sta-rite_pump_parts_diagram.pdfIn PDF document text
- http://numefen.pbworks.com/f/coaxial_cable_wireless_extender.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/be6fa2f5-9633-417d-ae40-f1e571eda3da/acurite_digital_weather_thermometer_indoor_outdoor_wireless.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5e0473fb-47b8-4eca-9b5e-35cf1a26a59e/67614150389.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f39d5e2e-7ff0-48ff-b345-d5e230bbb92b/how_to_use_hamilton_beach_2_way_coffee_maker.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0394b5ae-dbeb-4cc2-b984-79d3d361afb4/wijozi.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4f2150d4-6a3a-471d-8517-05c205f04be1/23866764551.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3df2ca85-aa03-4a16-a55f-413f83c56e3b/17441886532.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0001556e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1556E | 6052 bytes |
SHA-256: a3a1b0060a5d9080e95b37f5340eb83bd38d1a2405ec90ac8535428738196b37 |
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font_01_sfnt_off000169f3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x169F3 | 14848 bytes |
SHA-256: 058ff896da917ce3363de1ab6876c2dd078adc7500fe7f915ef3850a7572a8f2 |
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font_02_sfnt_off00019c83.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x19C83 | 16036 bytes |
SHA-256: 52db30b66cfb76898988bc7c6ed152514c301740808ab95bec9c68e49df23550 |
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