MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample is a PDF document identified as malicious by ML classifiers and ClamAV. It contains multiple external URLs, with one specifically noted as a link farm on disposable hosting, suggesting a phishing or redirection attempt. The document body, though heavily obfuscated, contains metadata related to wkhtmltopdf and a date, but no clear textual lure. The presence of external URIs and the 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic strongly indicate an attempt to direct users to potentially malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 5
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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 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://leonvi.ru/123?utm_term=the+wanderer+above+the+sea+of+fog+description PDF link annotation
- https://bufetijakuvarit.weebly.com/uploads/1/3/4/8/134878832/7eb7452.pdfIn PDF document text
- http://dazenad.iblogger.org/metformina_acidosis_lactica_mecanismo.pdfIn PDF document text
- http://fudoviwil.mywebcommunity.org/jevifidezareverinog.pdfIn PDF document text
- http://wevoselaxoto.66ghz.com/mn_drivers_license_renewal_time_frame.pdfIn PDF document text
- http://fishland.store/2808443604754xd3.pdfIn PDF document text
- http://zabemaladameg.medianewsonline.com/longest_research_paper_ever_written.pdfIn PDF document text
- https://dodesagetulisuv.weebly.com/uploads/1/3/4/9/134902864/5601cf.pdfIn PDF document text
- http://natotakujoriw.iblogger.org/3ds_emulator_app_free.pdfIn PDF document text
- http://leraxedosu.22web.org/business_strategy_frameworks.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- http://sajulugebimisu.myartsonline.com/guvupapegu.pdfIn PDF document text
- http://fagewoxe.epizy.com/99116454285.pdfIn PDF document text
- http://fiforeru.atwebpages.com/keto_cookbook.pdfIn PDF document text
- http://diwavubodinaroj.myartsonline.com/comtrend_ar_5319_turn_on_wifi.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_off0000d6f3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD6F3 | 5416 bytes |
SHA-256: 925adc34823abab019eda7e85d7be94275348aa65cfc4a3d3a54cf05c02994a0 |
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font_01_sfnt_off0000e966.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE966 | 10392 bytes |
SHA-256: 226819926fa26474a63509d013d1356714c65fc87d6c755b2c8fce28f5a86347 |
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font_02_sfnt_off00010d14.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D14 | 4324 bytes |
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378 |
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