MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains a large number of external links, many pointing to disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The primary suspicious URL identified is https://dafemum.ru/strik?utm_term=c+programming+exercises+pdf+files, which is likely part of the lure.
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://dafemum.ru/strik?utm_term=c+programming+exercises+pdf+files PDF link annotation
- https://cdn.sqhk.co/tobamozusaj/rhiAehj/besuburebozosaxugudukulo.pdfIn PDF document text
- http://pifafixejizigu.scienceontheweb.net/employment_contract_template.pdfIn PDF document text
- https://cdn.sqhk.co/pigexebobe/EPeWljc/takeout_near_me_mexican.pdfIn PDF document text
- http://gosoxegekiri.mywebcommunity.org/modo_de_produccin_de_la_comunidad_primitiva.pdfIn PDF document text
- https://vefamomapebimid.weebly.com/uploads/1/3/1/4/131406391/nojewirorip-nupaxisidisozab-mavasegejowi-dorejusebom.pdfIn PDF document text
- https://cdn.sqhk.co/zimidenex/ShglifZ/48592700855.pdfIn PDF document text
- https://cdn.sqhk.co/ruwonumatag/jbLfw6w/modern_living_room_decorating_ideas_uk.pdfIn PDF document text
- https://diwijavel.weebly.com/uploads/1/3/4/6/134691177/ed4fa.pdfIn PDF document text
- https://cdn.sqhk.co/jigavozef/8gA9iTO/21527061048.pdfIn PDF document text
- http://zaxiluxedexu.getenjoyment.net/ielts_writing_task_1_sample_essays_band_9.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://0aa989e7-076c-475f-bc22-fff5ae310860.filesusr.com/ugd/b44be6_f46f88426da2461bbd460dea2f97636e.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/5ca85555-2bf7-4463-828f-97fcc6a6f65a/asset_year_end_closing_steps_in_sap.pdfIn PDF document text
- https://550dfcec-0280-4316-a0d5-68b74a7a20b9.filesusr.com/ugd/f59309_b9213bf8920e49c680ac001c6a6d12f9.pdf?index=trueIn PDF document text
- https://6f8cb219-4830-455d-9ced-b55e65700e85.filesusr.com/ugd/fd30ac_58c627c1baf54c07a42c83820d7c40d9.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/7cb0a10f-7fb0-47b4-8b76-b2da6e95c74f/57648475632.pdfIn PDF document text
- https://99516632-72ce-40f3-a9a1-a01c91361c65.filesusr.com/ugd/e42c35_4436295c09324ae68d12b9b8955a8ad2.pdf?index=trueIn PDF document text
- https://38f9ccf9-db33-4582-994d-0ea518e52d38.filesusr.com/ugd/368de4_4c0e01278f5a4ad190a6a3735d5fce95.pdf?index=trueIn PDF document text
- https://50bf384a-eeac-4f26-a262-e2ba1a5e00ba.filesusr.com/ugd/17159d_bbd266c44bbb41fb965af0f8130fb8f1.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/f5ad252b-d958-487a-a890-de3da87e9bb8/audio_technica_lp60xbt.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/66f14fec-93ca-4a91-9337-3188db6944ad/fovogajop.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_off0000ca7f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA7F | 5448 bytes |
SHA-256: 5e69d40d1ed06e61b7ed93e68d93b7ce129e1b141ded55d78089066241aa67c6 |
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font_01_sfnt_off0000dcf9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCF9 | 10484 bytes |
SHA-256: 4e58e60106dde0a7b8206050c83072b4fbd95aeca269161f0bcdf65be0c20657 |
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