MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains a large number of external links, many of which point to disposable hosting services, indicating a link farm or SEO spam operation. The primary lure appears to be 'Write hangul online', which redirects to a URL containing a UTM term. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution through these linked sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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://queure.ru/pbw?utm_term=write+hangul+online PDF link annotation
- https://ladulokepalixu.weebly.com/uploads/1/3/4/8/134878898/63fb5.pdfIn PDF document text
- https://tiriwubesunadew.weebly.com/uploads/1/3/0/7/130739346/wuwasumu.pdfIn PDF document text
- https://wajutuba.weebly.com/uploads/1/3/4/6/134656264/nafiwimove-viponon-wowaxuwep.pdfIn PDF document text
- https://xujajogasugoni.weebly.com/uploads/1/3/4/5/134514057/devekazija.pdfIn PDF document text
- https://lodotimafigu.weebly.com/uploads/1/3/5/9/135981467/88785ace.pdfIn PDF document text
- https://didunebufanef.weebly.com/uploads/1/3/4/6/134680758/8413877.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4427097/normal_60b95ac0780cf.pdfIn PDF document text
- https://wonozonozosog.weebly.com/uploads/1/3/1/3/131398184/6662878.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4405904/normal_601aa7e6a3b9c.pdfIn PDF document text
- https://tedunifadikave.weebly.com/uploads/1/3/7/5/137505165/54459ccb41ffad.pdfIn PDF document text
- https://siteketu.weebly.com/uploads/1/3/4/3/134362374/nojumilavuk.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/4d1f197d-1751-4cff-b2e9-bae6870ea462/did_america_have_a_civil_war.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b58a7657-46ab-459f-b331-800898bccc66/what_is_an_angle_3rd_grade.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9440f144-6096-498b-a63a-2550b8c89fd5/astron_power_supply_schematic_diagram.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/da4268c5-ca5c-4930-b89a-077e2675e2b7/eitsel_performans_formu_doldurulmu_rnei_fen.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/985c5476-d082-4c24-89ca-8c668a7c4fe9/79253617635.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c9857dd7-149b-41a9-b308-6fdf0e8c38bc/bomfunk_mcs_music_download.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/de18fa6a-8dab-4a47-aeb1-3afad6e68efc/68591845598.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/df6394c5-06cc-4c05-b8db-281c002ba795/the_ultramind_solution_summary.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2a96d00c-010b-4741-abbc-764a5e0412e3/kezijugukew.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/07c78900-1188-402b-b00f-78c7c5408af6/rotamosugadep.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/59d0dbd7-66ed-45ee-a690-9c8c516586b9/zorenakaji.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_off0000f263.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF263 | 4780 bytes |
SHA-256: 907e3342cd1a8c80b2dd42186e51e568730c547f8e25f2dafe51777fb3d94910 |
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font_01_sfnt_off000102b0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x102B0 | 11440 bytes |
SHA-256: 812417f19b3bdedf4cb801e6ecfb56f84e9358e9dc4d33b4f7969f1652ab01ff |
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