MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous external links, many of which are hosted on disposable domains, indicating a link farm designed to distribute malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, specifically identified as phishing and potentially a trojan. The embedded URLs and the nature of the link farm point towards an attempt to redirect users to malicious sites, likely for phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
Heuristics 6
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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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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://vilenefex.ru/123?utm_term=buku+agama+islam+pdf
- http://kinemulawaw.sportsontheweb.net/miritimemipimupag.pdf
- http://benaletuzulug.sportsontheweb.net/guia_acuerdo_286_bachillerato_2020.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- https://80b2a579-f9ed-4aa0-b91a-ac3c8973c086.filesusr.com/ugd/353d00_d0846332c98a46d4894cd31b1ef6f6f1.pdf?index=true
- https://882e4f53-a7e1-4d4a-89e8-a6e6d9f9b805.filesusr.com/ugd/9a13d2_bbbf1b615e774017896dc92c8c70a61b.pdf?index=true
- https://e4c06157-4c4c-4c30-848d-1ce07482e123.filesusr.com/ugd/99e070_1e7356f13d91478d98e99b03b103a75e.pdf?index=true
- https://154530d8-637b-49d0-b90a-43bf07a176fb.filesusr.com/ugd/59359a_a26448e36321463cb17cf60bad765bd6.pdf?index=true
- http://fosixijikalapi.epizy.com/judeninekesotito.pdf
- http://sojatuduko.epizy.com/93426817529.pdf
- https://uploads.strikinglycdn.com/files/0ec1f7ea-49d0-42ee-be86-664cb6e39d1a/the_stand_movie_1994_cast.pdf
- https://8bd0dbf5-62e0-4684-a95a-1d9666dfa34a.filesusr.com/ugd/e71694_774453d97ef04b3c942556671346f8bc.pdf?index=true
- http://kubomefewofumim.atwebpages.com/passport_renewal_form_2020.pdf
- https://uploads.strikinglycdn.com/files/8d4c09b1-bbd0-4430-a925-bdec682b41f5/que_causan_las_celulas_afectadas_del_covid_19_en_nuestro_cuerpo.pdf
- https://3ae4d138-4ba3-4962-98fb-1b98b40a6a82.filesusr.com/ugd/38062a_33916c797c2a4d26a1833410a8fbf917.pdf?index=true
- http://newalutu.rf.gd/wedding_checklist_template_excel.pdf
- https://4eb83289-b313-4542-b68c-79a1d4783db4.filesusr.com/ugd/f6336d_4f3bbb5e373d47ae92061dd869073bbb.pdf?index=true
- https://uploads.strikinglycdn.com/files/a2df3f44-dbbd-421d-acfa-0f829d9bc93a/ligadajenoserodoselen.pdf
- https://a12a05ab-6462-4855-b086-b0a2a961d6d8.filesusr.com/ugd/2c76f4_6085a0cb55fa4a6c89d27cefb1300789.pdf?index=true
- https://35548484-ce42-4b18-9d9d-834326683263.filesusr.com/ugd/a221b6_85151ba724f749e2a51d759016e4fcae.pdf?index=true
- https://0a01f052-6ee6-4bfa-868d-d2e49373b03f.filesusr.com/ugd/55f640_d74f10ad807343b891230cc2f2f50e19.pdf?index=true
- https://b1e6e3cd-24a2-426a-8b7d-e8f4bd81915b.filesusr.com/ugd/83e584_d5253240fe304e029530e1e9d8c2fc3c.pdf?index=true
- https://3bcdeb60-9876-4d14-bc0a-1dd1632c647c.filesusr.com/ugd/16a96a_907d6707681b4a64a6ccf003cba4cb81.pdf?index=true
- http://wujukigow.rf.gd/nuvepakexewo.pdf
- https://uploads.strikinglycdn.com/files/3e069426-08d2-4781-b9d1-ee937c76b0e9/what_does_proverbs_30_5_mean.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00011b63.bina9edfca53af094bef455747894060beeeca65ff20a878d3b98b567e7812adaa0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B63 | 4848 bytes |
font_01_sfnt_off00012beb.bin7768975e76b3ecd30d62f2888d76db58f94f47de5ec4b9f31f6808d45d799ce3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12BEB | 11292 bytes |
font_02_sfnt_off00015280.bince7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15280 | 4324 bytes |
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