MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of external links, many of which point to disposable hosting services and are likely part of a link farm designed to lure users into clicking on malicious or phishing content. The ClamAV detection and ML classifier strongly indicate malicious intent, classifying it as a phishing trojan. The embedded URLs suggest a spearphishing attachment vector, aiming to redirect users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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://vilenefex.ru/strik?utm_term=production+and+operations+analysis+7th+edition+solution+manual+pdf PDF link annotation
- https://cdn-cms.f-static.net/uploads/4452851/normal_601d965d0ba02.pdfIn PDF document text
- https://zonixaroponovan.weebly.com/uploads/1/3/1/3/131398400/wegupu.pdfIn PDF document text
- http://wuzubofetaxoger.iblogger.org/85869738775.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4382408/normal_604e21902c4b6.pdfIn PDF document text
- http://bivebojulop.iblogger.org/adobe_flash_professional_bagas31.pdfIn PDF document text
- http://fevumajugo.iblogger.org/briggs_and_stratton_500_series_carburetor_adjustment.pdfIn PDF document text
- https://gevotasi.weebly.com/uploads/1/3/4/3/134389209/a283f4d2ef544.pdfIn PDF document text
- https://pesudimudoselu.weebly.com/uploads/1/3/2/6/132681392/a4b60a0d.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://uploads.strikinglycdn.com/files/6b21fd41-fb1d-42dd-aa5f-9541239e8d12/97736889633.pdfIn PDF document text
- https://c6111751-42b6-464f-a8b1-832d492ff999.filesusr.com/ugd/3d0627_7c26a1af1dcf4a74a3a4e2de0f40ea09.pdf?index=trueIn PDF document text
- https://a208a2de-cee2-48c2-86e3-c620a022946d.filesusr.com/ugd/dda32d_1233bea7435e48efb2eec9c67764a53b.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/703b2895-d759-4a63-a89b-c97b41879431/hp_laserjet_m1217nfw_mfp_toner_office_depot.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c4f69602-ff31-4492-a286-a961c8582b91/how_many_calories_in_dunkin_flavor_shots.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/63da45f7-1f99-4700-b7bf-6f0811f10129/when_did_samsung_7_series_tv_come_out.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/edf4c4c8-f9a1-47c3-80cb-3be87677cde9/92052947762.pdfIn PDF document text
- https://598a1783-db1d-4ebb-96f5-d3ad23e1e090.filesusr.com/ugd/ae99eb_d3c0867e6d244a46813793be287d101e.pdf?index=trueIn PDF document text
- https://f904ef53-caa1-4f0f-8a97-c50675c03ece.filesusr.com/ugd/2f8cea_108b0db1c2a245989723d8d21748e3f1.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/36deadd9-26fc-4a29-ac9d-66bf224c6d7f/jakixifomet.pdfIn PDF document text
- http://bonuroxuw.rf.gd/51114027225.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0cb265a2-8dcf-4af8-aacd-2f71c2aa51a7/1691213977.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e2a0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2A0 | 5460 bytes |
SHA-256: 0774c38c72a1ad41e11a775cd08567accbbfbc11e08d364edcb620057a39900d |
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font_01_sfnt_off0000f511.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF511 | 10968 bytes |
SHA-256: 170acab628df3ac2cdbf782c52198b304644f7b4a7ce625e5355247b07e58854 |
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font_02_sfnt_off00011a81.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A81 | 4324 bytes |
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3 |
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