MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a large number of external links, many pointing to disposable hosting, suggesting a link farm used for SEO manipulation or phishing. The primary URL, https://kuzutuzo.ru/award?keyword=senior+system+administrator+job+description+pdf, further supports the lure of a job description to entice users to click through to potentially malicious sites.
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://kuzutuzo.ru/award?keyword=senior+system+administrator+job+description+pdf PDF link annotation
- https://static.s123-cdn-static.com/uploads/4416669/normal_6009262a0134d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368496/normal_6015b42f7e21e.pdfIn PDF document text
- https://zowotojezef.weebly.com/uploads/1/3/4/3/134330732/tupelil-dudilufe-mebofexos-nawedunereneji.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4415046/normal_6035a2346ef30.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4485689/normal_5fc91b71475db.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4485705/normal_5fc5eeee3d44e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4447085/normal_5fdb55d7bc39e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4456985/normal_60140436693f5.pdfIn PDF document text
- https://buketopol.weebly.com/uploads/1/3/4/0/134013372/selagowotonub_damagenizujitoz_tufaro.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4461232/normal_5fd21a12ae357.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4425737/normal_5fd5fc62198fb.pdfIn PDF document text
- https://vifegozotamideb.weebly.com/uploads/1/3/4/2/134236473/kexosesof.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/da5148d1-3161-43d3-9c0b-71c64e35fe05/vunofufibepobalita.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/31f30b29-1603-4820-8424-afb82ae6cfb1/schwinn_airdyne_ad4_windscreen.pdfIn PDF document text
- https://79d86aa2-23c4-4aa0-a0dc-c16ac59ae55d.filesusr.com/ugd/ecb701_81c4ae37bdd04629873568d278a5b01d.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/2138ac8b-673f-4d08-b7be-592e63873498/sense_and_sensibility_2008_soundtrack.pdfIn PDF document text
- https://53ebb62d-ddaf-432f-8dc3-1f4746653467.filesusr.com/ugd/bbd3cf_e8e718b6bb894b99b978508951c033f2.pdf?index=trueIn PDF document text
- https://dfa52777-3edb-460f-9b14-ca5101cd4ecc.filesusr.com/ugd/5360f8_bfcdec3cdc2a466eba6fe5a670d03f7b.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/b72b2592-ad29-4397-9098-72c880531db4/best_foods_to_eat_on_advocare_24_day_challenge.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5284ce03-a6f9-4a86-9280-774e5f45f7ac/nefopugekitunolo.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_off0000fd8e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD8E | 5688 bytes |
SHA-256: c264083f223a0cbb125386e0725dabd1defe6078c29009ceeb119c25dc0dff05 |
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font_01_sfnt_off000110dc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x110DC | 10704 bytes |
SHA-256: 405f6605b359283bf19835d346f621dc772cb2c76fce2b596005c7171bc45c99 |
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