MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1059.007 JavaScript
T1566.001 Spearphishing Attachment
The PDF contains an embedded JavaScript payload that likely redirects the user to a malicious website, as indicated by the PDF_EMBEDDED_SCRIPT_PAYLOAD and PDF_SEO_LINK_FARM heuristics. The ML classifier and ClamAV detection strongly suggest malicious intent. The embedded script's primary function appears to be to facilitate the redirection to external URLs, such as the one found in the document body, which is a common tactic for distributing further malware or conducting phishing attacks.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
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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Embedded script payload in PDF stream medium PDF_EMBEDDED_SCRIPT_PAYLOADPDF stream bytes contain an HTML/XFA <script> tag without accompanying Windows shell-execution primitives — common in accessible XFA forms but worth surfacing for analyst review.
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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/strik?utm_term=what+is+a+stoplight+switch PDF link annotation
- https://kawolusasemosu.weebly.com/uploads/1/3/5/3/135397741/magarelorufuvib.pdfIn PDF document text
- https://gefeteki.weebly.com/uploads/1/3/4/3/134310298/bea61d67db788.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4453102/normal_5fc87046f03e6.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4476924/normal_5ff1e68912e4d.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4483361/normal_5fe2c0057804e.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4366055/normal_5fdd60de17d14.pdfIn PDF document text
- https://fumitofid.weebly.com/uploads/1/3/1/6/131637255/73756.pdfIn PDF document text
- http://tebapewulodafe.getenjoyment.net/goals_of_punishment_essay.pdfIn PDF document text
- https://wixugowodekawa.weebly.com/uploads/1/3/1/4/131438135/dugusixujixanunuj.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4385214/normal_603eb76328b95.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4470980/normal_6043e3dbac80b.pdfIn PDF document text
- http://nakekizedexu.getenjoyment.net/resumen_del_mundo_de_sofia_capitulos.pdfIn PDF document text
- http://nunesop.scienceontheweb.net/tufet.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4483070/normal_5ff6522777074.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4427780/normal_5fc5e5c51c30c.pdfIn PDF document text
- https://tuzenuzibawura.weebly.com/uploads/1/3/4/7/134733138/ba0cbbee.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4481423/normal_603e426817f77.pdfIn PDF document text
- http://pesuzukotejoki.iblogger.org/life_of_olaudah_equiano.pdfIn PDF document text
- http://detaxinema.22web.org/lajifubukefe.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://larujuzo.rf.gd/arabic_words_with_meaning.pdfIn PDF document text
- http://tofujuwo.onlinewebshop.net/vamejemivaze.pdfIn PDF document text
- http://sagolitoru.rf.gd/dizojisebigegobalik.pdfIn PDF document text
- http://fikovik.epizy.com/gps_garmin_255w.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 |
|---|---|---|---|
embedded_pdf_script_0001008a.bin |
pdf-embedded-script | PDF decompressed stream script payload at offset 0x1008A | 67686 bytes |
SHA-256: 2e1c0b16c9e7c4ccf1c02df1cc85c57359e40376c98ccfefd069aef94869fa2e |
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Preview scriptFirst 1,000 lines of the extracted script
%PDF-1.4
1 0 obj
<<
/Title (�� W h a t i s a s t o p l i g h t s w i t c h)
/Creator (�� w k h t m l t o p d f 0 . 1 2 . 5)
/Producer (�� Q t 4 . 8 . 7)
/CreationDate (D:20210411073242+03'00')
>>
endobj
3 0 obj
<<
/Type /ExtGState
/SA true
/SM 0.02
/ca 1.0
/CA 1.0
/AIS false
/SMask /None>>
endobj
4 0 obj
[/Pattern /DeviceRGB]
endobj
6 0 obj
<<
/Type /XObject
/Subtype /Image
/Width 625
/Height 155
/BitsPerComponent 8
/ColorSpace /DeviceRGB
/Length 7 0 R
/Filter /DCTDecode
>>
stream
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... (truncated)
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font_00_sfnt_off0000c9aa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC9AA | 5204 bytes |
SHA-256: beff9054480c93779c1d977289f9bed994b7e4faea477501e8fe506a4a68914a |
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font_01_sfnt_off0000db7c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB7C | 9356 bytes |
SHA-256: 26174361801a2730678de4db92737916ed5866e1e53ce2b511b86806f50f5455 |
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