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 pointing to disposable domains, suggesting it functions as a link farm for SEO manipulation or to distribute further malware. The primary malicious URL identified is https://zajinet.ru/strik?utm_term=myers+briggs+test+definition.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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://zajinet.ru/strik?utm_term=myers+briggs+test+definition PDF link annotation
- https://pofitokibifezaf.weebly.com/uploads/1/3/5/3/135394855/fibux.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4495402/normal_6041b544afa32.pdfIn PDF document text
- https://gaxasexafarud.weebly.com/uploads/1/3/4/5/134590452/c68e1.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4408188/normal_5ff31b8d4bae1.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4424996/normal_600ede250e9f7.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4491673/normal_6009d078a4c59.pdfIn PDF document text
- https://sadoxeliwuduw.weebly.com/uploads/1/3/4/0/134040540/757c9144324.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
- https://uploads.strikinglycdn.com/files/a58c0607-8365-4d29-a60e-465c98d9d011/samsung_55_inch_uhd_smart_tv_reviews.pdfIn PDF document text
- http://fiderifi.rf.gd/netamuxixifu.pdfIn PDF document text
- http://nokizotef.rf.gd/10692375213.pdfIn PDF document text
- https://7fd92c66-d3af-485c-b7a9-31529ddfb1b5.filesusr.com/ugd/997d0f_1d4e6589626545a899b136662c2b6086.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/6ef6f827-952d-4996-b11f-8773ce4f93f1/brother_knitting_machine_model_kh-260.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/25199e7c-8c53-475b-99a0-88baac151a91/72896578090.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f61acd4f-d1ae-4907-8278-33d46b766813/rinafilewusajanura.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6df24997-a921-428e-9613-3f9d480464a1/vokutatutajobosik.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/699522a4-fac3-41be-94a9-87a30ad92781/33755546041.pdfIn PDF document text
- https://d7301f0f-9730-4f6e-9d95-601e203cb770.filesusr.com/ugd/253413_83080aae9f444a6792e60492caefd47b.pdf?index=trueIn PDF document text
- https://cd753cf5-d90a-4073-9c55-931a76e81761.filesusr.com/ugd/8826df_2a12ed377b5d47c696417840e42cf698.pdf?index=trueIn PDF document text
- http://jigiwema.epizy.com/editing_marks_guide.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2895dd54-f736-470e-a7e2-1668620448f4/4000494026.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_off0000efcb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFCB | 4868 bytes |
SHA-256: 8f9c99c09e90fd49256255c260b53b5a8707151cf1c2d6d61322a06f5d659f48 |
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font_01_sfnt_off0001006c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1006C | 10724 bytes |
SHA-256: cce46cc83ed3e24cc4343bfc0e656737ab2dd82e5ff50e8e1272e8cf60266e6c |
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font_02_sfnt_off000124dc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x124DC | 4324 bytes |
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34 |
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