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 0.9991
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://krisoc.ru/pbw?utm_term=how+to+write+a+good+introduction+for+ielts+task+2 PDF link annotation
- https://cdn-cms.f-static.net/uploads/4372378/normal_60621f6a2c2a4.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4478688/normal_6042cce574019.pdfIn PDF document text
- https://lesofetu.weebly.com/uploads/1/3/1/3/131378838/2419006.pdfIn PDF document text
- https://newimogo.weebly.com/uploads/1/3/1/0/131070302/jegisometupezufu.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4476001/normal_603e0a8dcf24b.pdfIn PDF document text
- https://puvedevedumu.weebly.com/uploads/1/3/1/4/131406841/01d499b5.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4471996/normal_602263b1b59c2.pdfIn PDF document text
- https://zibefaxad.weebly.com/uploads/1/3/4/5/134594794/aa5b50d13ef1.pdfIn PDF document text
- https://wapixetisabin.weebly.com/uploads/1/3/4/6/134685373/6683d3.pdfIn PDF document text
- https://linozimonabeb.weebly.com/uploads/1/3/4/7/134726246/29c5cbfc26b67.pdfIn PDF document text
- https://bomevalaruzaf.weebly.com/uploads/1/3/4/8/134871705/riragek-finiberurikakod.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4459794/normal_5fe79ff69680b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4471464/normal_60120a616af7c.pdfIn PDF document text
- https://meverofukibax.weebly.com/uploads/1/3/4/6/134620555/3427858.pdfIn PDF document text
- https://nuniladolu.weebly.com/uploads/1/3/0/7/130775245/1858543.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4423431/normal_6066d0630ac36.pdfIn PDF document text
- https://fodonisegijiwos.weebly.com/uploads/1/3/1/4/131437376/kutikufodarofetawiki.pdfIn PDF document text
- https://jinepitabo.weebly.com/uploads/1/3/7/5/137515198/tukidowuwikib_vewugelina_poziw.pdfIn PDF document text
- https://botasapozav.weebly.com/uploads/1/3/1/6/131607984/makavilakidux.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/06619728-e738-44af-8b29-f6101e42c5c8/miui_11_android_10_redmi_note_8_pro_download.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ba2314c9-a78c-485a-96ba-39672c3294e2/solucionario_matematicas_aplicadas_para_administracion_economia_y_ciencias_sociales.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0a1f1c9c-0939-444c-a40a-77c6c0b85434/samsung_galaxy_s9_plus_case_with_screen_protector.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/88f84da5-b0f6-444f-bb68-4bd3b285d7eb/wall_street_journal_subscription_uk.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9a75c3be-fa36-42f0-952d-e55b46799fa8/96648871646.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_off0000ef37.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF37 | 5436 bytes |
SHA-256: 1e218a532caf4422222ebd153af484752c4efa2bd416453b8a37a0e57691226f |
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font_01_sfnt_off000101db.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101DB | 10620 bytes |
SHA-256: 192ee9f1540880abf566d804cfeba26a3386d8df0e02763552e078b0b726d0cc |
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