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 0.9998
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://zajinet.ru/award?keyword=advances+in+biotechnology+and+genetic+engineering+pdf PDF link annotation
- https://cdn-cms.f-static.net/uploads/4494866/normal_604e0596dae72.pdfIn PDF document text
- https://rikusinifo.weebly.com/uploads/1/3/4/0/134017093/xarexagemonofuw_zofuz.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4449417/normal_600df9ae4d4a2.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4415061/normal_6012774c427cd.pdfIn PDF document text
- https://nujusokomofevak.weebly.com/uploads/1/3/4/5/134503883/9690271.pdfIn PDF document text
- https://rusolozotiwar.weebly.com/uploads/1/3/5/9/135992237/jorekotewofus.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4477167/normal_603d35a77b752.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/3881e62f-282c-4ad3-8c75-ac20cf6c3d25/how_to_get_a_month_to_month_lease.pdfIn PDF document text
- https://03a45e23-20c9-4b13-8d21-50c2609e56df.filesusr.com/ugd/502f3d_f16591a3e5cb4b3492bc3a1b88fe8da8.pdf?index=trueIn PDF document text
- https://be9ca920-c372-4566-b00d-544f92814f3b.filesusr.com/ugd/f0c5a9_073faacd80854f8c94b4b9897eb56e73.pdf?index=trueIn PDF document text
- https://01d7ec8a-e38e-4e33-8c76-1be31754498b.filesusr.com/ugd/24d943_4d02eb7a9c324df6a5a16f7f295af76f.pdf?index=trueIn PDF document text
- https://c7fb3737-a2fb-4e06-b71d-f78b648bb0a4.filesusr.com/ugd/a9248e_a70c122adcbb456eb7cc48a4b7ff548f.pdf?index=trueIn PDF document text
- https://f79c4d19-9b07-4ca9-ba82-4f938217db57.filesusr.com/ugd/c0d3e8_acb298a2384b4055af0d845a47d792dc.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/94557c12-481f-42b2-b116-0ec8c227b924/what_does_the_pit_and_the_pendulum_symbolize.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e55d18c8-19c0-46ec-9470-2e9e02df1f3e/livre_power_robert_greene.pdfIn PDF document text
- https://46a1ac71-481d-4a85-b709-d40f3a189542.filesusr.com/ugd/143c98_cace48b3ceb1433ca7ee173b17f4667a.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/a9e59c91-bceb-4de8-9b27-555bc373bbf0/13153036821.pdfIn PDF document text
- https://7abbf572-6989-4614-8246-9d5ba34cd238.filesusr.com/ugd/af841b_420dbab761504c4fbf0b7f317a8b372a.pdf?index=trueIn PDF document text
- https://1fa67a36-2e8b-44cc-a955-751d80433762.filesusr.com/ugd/d85e51_9bd9b011828d4b5db2b10817c18af712.pdf?index=trueIn PDF document text
- https://69b3109a-7cce-4514-9193-d2106d9976ab.filesusr.com/ugd/3c2969_f34ea927249249f49b5249a51504504c.pdf?index=trueIn 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_off0000fa80.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA80 | 5708 bytes |
SHA-256: 1b850b787ea430f6d6a39bec3078e56b340ace6468f9db2bc65d08c239cf903c |
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font_01_sfnt_off00010df6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10DF6 | 11792 bytes |
SHA-256: 01b218fb9b6494f5c345fac2be2e0879791b8ccfd50309fa62eddfff9e75611b |
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