MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a large number of external links, many of which are hosted on disposable domains, suggesting a link farm or phishing operation. The primary malicious URL identified is https://nipisod.ru/strik?utm_term=please+confirm+receipt+of+this+email+by+replying, which is likely used to redirect users to a malicious site. No scripts were extracted, but the PDF structure and link farm heuristics point towards a phishing or malware distribution attempt.
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://nipisod.ru/strik?utm_term=please+confirm+receipt+of+this+email+by+replying PDF link annotation
- https://kimexigute.weebly.com/uploads/1/3/4/0/134017587/3833564.pdfIn PDF document text
- https://gipimosikiji.weebly.com/uploads/1/3/5/9/135963651/bijemati-tetovurirugugu-serarafifime.pdfIn PDF document text
- https://pulapiselipatux.weebly.com/uploads/1/3/1/3/131378970/5790094.pdfIn PDF document text
- https://komanogorolelew.weebly.com/uploads/1/3/1/3/131380356/kosifevuzef.pdfIn PDF document text
- https://xelipifexejup.weebly.com/uploads/1/3/4/8/134848770/5735459.pdfIn PDF document text
- https://sefokasezasun.weebly.com/uploads/1/3/4/6/134690402/412689.pdfIn PDF document text
- https://damabinon.weebly.com/uploads/1/3/0/7/130738970/d6806b6c18.pdfIn PDF document text
- https://vobilazi.weebly.com/uploads/1/3/5/3/135300702/872c5b.pdfIn PDF document text
- https://torimavilok.weebly.com/uploads/1/3/5/9/135984964/jiwarutavon_vemusim_zagutif.pdfIn PDF document text
- https://segalupozido.weebly.com/uploads/1/3/0/7/130738693/dibuguwu.pdfIn PDF document text
- https://wajevubal.weebly.com/uploads/1/3/4/6/134687537/zapisip.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/2a0aec23-7a1c-46b2-b25c-bf2921c252a8/bemoso.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9c596e67-48d3-4193-9c48-8b93309c341f/xerebuwesitadizijoj.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/34666541-d96a-4e32-9d79-b50ddd97f743/timex_expedition_field_chronograph_amazon.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8b0fc280-aa8b-4b50-8ce8-2979a72eccd5/ragdoll_engine_fling_push_script.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a825f532-d41a-4f9b-83d2-1f0d68ab1bf3/how_do_organisms_relate_to_an_ecosystem.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7884bfaf-ef8d-4c05-b7df-fb2de4d354a4/step_outline_template.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0bb4806c-1245-48e1-9664-c2e85c80443d/algebra_and_trigonometry.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_off00011ebd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11EBD | 16352 bytes |
SHA-256: 1db4a77d9f138f96c515c36cde105fa9ea47e1602da341fdd05dcbfdf77c86f3 |
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font_01_sfnt_off00015385.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15385 | 5672 bytes |
SHA-256: 03376e7514c907faacd898b684c9af68abfcb598981cc92d0bab475885499956 |
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font_02_sfnt_off000166b4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x166B4 | 13440 bytes |
SHA-256: 3ae0f2d957df8edd89254ce664ae2bb7b23d322a8900f98f3d526dcb0816d476 |
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