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 0.9998
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://jacksth.ru/strik?utm_term=why+are+alternative+energy+sources+needed PDF link annotation
- https://cdn-cms.f-static.net/uploads/4367310/normal_60121891a0314.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4488314/normal_60132b220c79b.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4405419/normal_5fe309896c985.pdfIn PDF document text
- https://cdn.sqhk.co/birifoneboj/iXjbbNE/wetijazigijipero.pdfIn PDF document text
- https://cdn.sqhk.co/tevosenijosu/cghk5wS/82721610704.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://70848fb0-0fd0-490a-9360-2ffa38fc212c.filesusr.com/ugd/08e331_092acefe20b54813a922552bf6729e7f.pdf?index=trueIn PDF document text
- https://2a6c20f5-091f-48b5-a5be-bf749919b1f6.filesusr.com/ugd/3794ad_0759089b0bef4157988bc4c7e59b319f.pdf?index=trueIn PDF document text
- https://09af0a6c-c0e6-47ff-90c1-5b173435ccd1.filesusr.com/ugd/b92b66_5c99d869081d4e96a2e25d4b76845679.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/ea174489-342e-40b8-a0c0-add8e572ff96/86903106828.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1cd30117-102b-490f-815f-0fc5a2022a03/gimabiluwafizekokabumime.pdfIn PDF document text
- https://f5d5bca3-0ffd-41e3-a77d-3d805a1e43e5.filesusr.com/ugd/4e23ca_70307e6b66754280aa43092d54b2eb83.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/625d98d7-ec5b-4e68-8c95-f10839719fe3/bodegebibofarujed.pdfIn PDF document text
- https://a5a7f18c-b887-48a0-80cc-3627c14345d5.filesusr.com/ugd/609f59_c82f539f080e497e83f76b2f7f9dce1d.pdf?index=trueIn PDF document text
- https://1261df91-4e32-40b2-8b8a-4050d3c54cbb.filesusr.com/ugd/df69c1_a25c3c89367b4d678c10fc7daeee7fd8.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/189a96ed-3c3c-4521-915e-652be5b1d872/us_history_staar_test_2017.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/377b5695-40a3-425c-8f19-d847f83adf7e/ti_nspire_cx_cas_student_software_price.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9151fa50-a8e4-4449-b3fb-d6dda790047d/modal_verbs_of_ability_perfect_english_grammar.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/176254c9-d409-46ed-bc26-a707794afb1e/logitech_x-530_adapter_tv.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_off0000ec25.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC25 | 5376 bytes |
SHA-256: 1b2cadaa9bafdfe58b2f87ea9cbf19f269c7d7ac486df1de2806486748a9b123 |
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font_01_sfnt_off0000fe81.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE81 | 10964 bytes |
SHA-256: ff53af39ad22a2ede48371805d03994c337a7ddc554ca3f2c846c163fde8018b |
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