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 hosted on disposable domains, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution. The embedded URL and the PDF's structure point towards a spearphishing attachment as the initial access vector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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://pistant.ru/pbw?utm_term=a1+reading+passages+pdf PDF link annotation
- https://cdn-cms.f-static.net/uploads/4427093/normal_601a3304b19f8.pdfIn PDF document text
- https://veregatuvodomos.weebly.com/uploads/1/3/3/9/133997599/6736a901bd2cf.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4380540/normal_6015f0dd56a22.pdfIn PDF document text
- https://zomoxiwoginu.weebly.com/uploads/1/3/1/6/131637743/fb6f69.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369161/normal_606355370bdef.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4383451/normal_60b90dd1d0f04.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4496582/normal_60331d82c8294.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4447089/normal_6030a8c2dc49b.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://rizukokodi.pbworks.com/f/25274100263.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b135ae3f-6949-4635-ba0b-b4159841e083/covid_testing_near_cypress.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/64893d3f-9c9f-4025-90e5-987782cf1ac0/filmy_wap_punjabi_movie_2019.pdfIn PDF document text
- http://zuwofig.pbworks.com/w/file/fetch/144536898/scotts_turf_builder_edgeguard_mini_broadcast_spreader_settings.pdfIn PDF document text
- http://piwazufoli.pbworks.com/w/file/fetch/144772509/daily_mail_kakuro_answers.pdfIn PDF document text
- http://namebitepu.pbworks.com/f/holt_mcdougal_literature_grade_8_answer_key.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/35435dd1-360c-4ae0-bb4e-64722d8c0ef7/do_ipods_have_bluetooth_capability.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/18503588-2898-4e8b-a33f-2cc84887f135/how_much_is_a_reach_forklift_licence.pdfIn PDF document text
- http://guleribiko.pbworks.com/f/what_are_attention_getters_for_speeches.pdfIn PDF document text
- http://bezawagiga.pbworks.com/f/48729889484.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/93990a9f-c267-4282-ad33-87ce83e90b5c/35744413448.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_off000155bc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x155BC | 5220 bytes |
SHA-256: c5f763405ac4343dc167ebb8d7e2dc5516128a9b06f4077ee35e022d3e70526e |
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font_01_sfnt_off00016795.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16795 | 13268 bytes |
SHA-256: f450cb95a8bb886653edd14e9eebd0b3f697b3c8e510ec87dd0f6eca93e0eefd |
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