MALICIOUS
226
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
This PDF file exhibits characteristics of a phishing or malware distribution lure, as indicated by the 'PDF_SEO_LINK_FARM' and 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristics, suggesting an attempt to create a large number of external links. The 'SE_CLICKFIX' heuristic further suggests social engineering tactics to trick users into executing commands. The presence of numerous external URLs, including the primary one pointing to 'jumiwimov.ru', reinforces the likelihood of redirection to malicious sites. Although no scripts were explicitly extracted, the PDF structure and heuristics point towards exploitation for client execution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
Heuristics 7
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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-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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ClickFix social engineering attack high SE_CLICKFIXDocument instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
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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://jumiwimov.ru/award?keyword=learn+excel+pdf+book
- https://static.s123-cdn-static.com/uploads/4476924/normal_5fffa452a709a.pdf
- https://lulegosepo.weebly.com/uploads/1/3/0/9/130969478/zajewefawexis_senesuwux.pdf
- http://jawazapefaxuzit.mywebcommunity.org/gurozejipowurexukomij.pdf
- https://cdn-cms.f-static.net/uploads/4393901/normal_600e6b3613aef.pdf
- http://itprod.space/new_movie_tv_apkxryjg.pdf
- http://pivolirarorip.mypressonline.com/how_do_you_know_when_a_guy_is_interested_in_you_over_text.pdf
- http://jijoxep.getenjoyment.net/pdf_prince2_agile.pdf
- http://wowitaly.pro/realismo_movimiento_artistico8zoel.pdf
- http://tisejamebip.sportsontheweb.net/javascript_ajax_get_file.pdf
- https://static.s123-cdn-static.com/uploads/4463543/normal_5fc87b2696c1c.pdf
- https://verakolor.weebly.com/uploads/1/3/1/3/131379730/ruziwuzixusiru.pdf
- http://storeeuro.info/cease_and_desist_letter_templateskspp.pdf
- https://nipapisowoxodo.weebly.com/uploads/1/3/5/3/135349464/f04f84.pdf
- https://gefidiwe.weebly.com/uploads/1/3/0/7/130738847/8707a005b287.pdf
- http://shopsmmv.site/807299627899rvoh.pdf
- https://cdn-cms.f-static.net/uploads/4382976/normal_604351a7484fd.pdf
- https://static.s123-cdn-static.com/uploads/4366676/normal_6006e60e2c7c3.pdf
- http://organicsss.space/49476499736j6pcl.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://b32521b7-32ca-447e-9967-d27d0dce683d.filesusr.com/ugd/800b88_29eb9325486b4c58b617322e94aaf7ed.pdf?index=true
- https://uploads.strikinglycdn.com/files/ebe6dc2a-ca5e-4fac-9f99-f31146b64fe0/kolarowiregamix.pdf
- https://041c2bdd-267b-4995-9d72-d071cf2c2b2b.filesusr.com/ugd/ba0b69_7dededdc345e4d7f94e5ad0ee7e28aaa.pdf?index=true
- https://uploads.strikinglycdn.com/files/710029a9-1e4d-45ab-9388-1b5e06e72d1e/honeywell_6160_wiring_diagram.pdf
- https://ecfc1f44-6648-4072-bff5-6ee4adcfbe4f.filesusr.com/ugd/e5a943_8d3e3f7355074c12930f84dd2ecaa39b.pdf?index=true
- https://84daacc9-7e90-4c5d-b1ed-526950900c49.filesusr.com/ugd/73f3b0_979de355f04d4be4852505b33cdb83ff.pdf?index=true
- https://uploads.strikinglycdn.com/files/b6d2cb1c-ddc3-4fdc-9a9f-5a153cce9ec3/moultrie_trail_camera_troubleshooting.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0001c50c.bin0a17bea3ea26c536ff599f30b302add9e1c5ecdafa37f9f24376a69663dd64dd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1C50C | 5184 bytes |
font_01_sfnt_off0001d6c7.bin44e81aeca6014879e2b3984f9e6aea8a91af530bea97694a7e9ff023a42dc41c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1D6C7 | 12036 bytes |
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