MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document functions as a link farm, directing users to multiple external websites, including one that appears to be a phishing lure related to COVID-19 vaccine side effects. The PDF contains a large number of external links, many hosted on disposable domains, indicating a malicious intent to distribute traffic to potentially harmful sites. The ML classifier and ClamAV detection strongly support the malicious classification.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 7
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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://jottigo.ru/strik?utm_term=washington+post+covid+vaccine+side+effects PDF link annotation
- http://jesofoma.getenjoyment.net/what_are_inferential_statistics_in_psychology.pdfIn PDF document text
- https://megidawuxuta.weebly.com/uploads/1/3/4/7/134729580/e2213580344af.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4366063/normal_6008f81fd2669.pdfIn PDF document text
- https://vomogavuxif.weebly.com/uploads/1/3/4/7/134762738/4377156.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4449992/normal_6030232739b6c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4460686/normal_604d6cbc97b27.pdfIn PDF document text
- https://mezepimera.weebly.com/uploads/1/3/4/8/134860759/8367582.pdfIn PDF document text
- http://zabavnyi-slon.ru/727838520427a9m6.pdfIn PDF document text
- https://vuxamirajuka.weebly.com/uploads/1/3/6/0/136082549/7a08821d7c0e37.pdfIn PDF document text
- http://how2clever.com/mobile_phone_cashback_deals_reviews9mwsq.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4491686/normal_5ffeaaf5e3cd0.pdfIn PDF document text
- https://bufazojilenove.weebly.com/uploads/1/3/4/6/134639622/7adcb28b.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://fb413987-6e77-4bf1-aaa6-e97eb550fbee.filesusr.com/ugd/108936_3e06b4c417ae49488b131223c340ddca.pdf?index=trueIn PDF document text
- https://bb491b24-4c81-4ccc-8daa-bf1baeb171c2.filesusr.com/ugd/93c935_6f712f2d02f947bc8547a016671e5812.pdf?index=trueIn PDF document text
- https://47e4df30-8702-49a4-8bd5-327e1546ff06.filesusr.com/ugd/379272_8fc6ecc464534ec894b6652581bfac44.pdf?index=trueIn PDF document text
- http://dusameferadulo.onlinewebshop.net/editing_a_file_in_windows_10.pdfIn PDF document text
- http://zuvuzevo.atwebpages.com/kikulitagegelikufotelofoz.pdfIn PDF document text
- https://0503187d-52cd-4237-9521-a3cb9bf551ae.filesusr.com/ugd/5bb01c_138ac38680e54a6f9281eb270857cf0b.pdf?index=trueIn PDF document text
- http://suvalomimo.atwebpages.com/ambitos_de_la_defensa_nacional.pdfIn PDF document text
- https://4bf641bf-117a-4913-931f-55e49063997f.filesusr.com/ugd/5befcb_6044f106bb15460d9a438f1dfb3c84ea.pdf?index=trueIn PDF document text
- https://07f52280-50dc-49c2-beec-a2e30bf849d0.filesusr.com/ugd/7b8f90_5af5753758aa46b5aedddea6a882b0ac.pdf?index=trueIn 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_off0001315f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1315F | 5360 bytes |
SHA-256: 81904022977e5506a9c5691b79938a93059ecbe5975783934a96f7fba49f1a9e |
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font_01_sfnt_off000143b9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x143B9 | 10976 bytes |
SHA-256: 202ece42e5b2c8bb9e38210f35ea9b039a79b93fd96d9459954c6dd0cd9fcf6e |
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