MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of external links, many pointing to disposable hosting, suggesting it is part of an SEO link farm. The primary URL, 'https://infrive.ru/pbw?utm_term=you+don%2527t+know+javascript+async+and+performance+pdf', indicates a lure related to JavaScript and performance, likely to attract clicks. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan.
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://infrive.ru/pbw?utm_term=you+don%2527t+know+javascript+async+and+performance+pdf PDF link annotation
- https://cdn-cms.f-static.net/uploads/4454547/normal_603d6e7fa5f7e.pdfIn PDF document text
- https://gilijopagexoda.weebly.com/uploads/1/3/4/7/134713479/zikebo-bojaji.pdfIn PDF document text
- https://mogisitubetaw.weebly.com/uploads/1/3/4/4/134496388/vanizagu.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4465263/normal_605ef537309cd.pdfIn PDF document text
- https://liruviwogaralo.weebly.com/uploads/1/3/0/7/130776788/e8411feef82.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4379240/normal_5fe3bcdeb84d6.pdfIn PDF document text
- https://jazelufum.weebly.com/uploads/1/3/5/9/135965355/ebf662.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4418185/normal_5fc864a74adbc.pdfIn PDF document text
- https://begakidiwadagav.weebly.com/uploads/1/3/1/3/131397934/mexiradofi.pdfIn PDF document text
- https://vopakumadojaga.weebly.com/uploads/1/3/4/3/134361244/sovaluwukudanivojoz.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4374177/normal_5fd94aa5129ab.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/18456ae6-e175-408f-a900-0ca93e7d0a9b/the_republic_grille_spring_tx.pdfIn PDF document text
- http://nilanom.pbworks.com/w/file/fetch/144681027/4470065752.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a2e773b9-8a19-47c5-a70f-ac0789c4b41b/33343251130.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4ad0c803-d185-4728-80b2-20238bf68cf9/97996461801.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a0ad1714-423a-45ec-b479-4e7309e7472b/lekimezafukotat.pdfIn PDF document text
- http://mulasamesi.pbworks.com/f/33656194376.pdfIn PDF document text
- http://wuxikadafi.pbworks.com/f/what_is_peak_relational_training_system.pdfIn PDF document text
- http://pifiloxema.pbworks.com/w/file/fetch/144734748/dagezazamulewofuf.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6add44d0-c720-4ded-ad56-e8724f68ad4d/how_to_turn_on_lights_in_keyboard_hp.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_off0000db88.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB88 | 5660 bytes |
SHA-256: ee9ea9f0427905a773d47a4a1920be35c1e58b36ade1a1f5c0873d58bc2978f9 |
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font_01_sfnt_off0000eedc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEEDC | 2092 bytes |
SHA-256: 9fcfd2b2c12c9d480c0beec3ee39f05b9e518edc5177a7a5fcc68dff0371f8a2 |
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font_02_sfnt_off0000f87d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF87D | 11964 bytes |
SHA-256: ea5d3ff57e88788bd3976f31178384dbca8cbc0889f1c11a06f8f7971613be80 |
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