MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains a deceptive title related to changing a shower valve, but its primary function is to act as a link farm. It embeds numerous URLs, including a critical redirector link to 'yafferge.ru', which is known malicious infrastructure. The heuristic firings indicate a malicious redirector and a link farm on disposable hosting, suggesting a phishing or spam distribution scheme.
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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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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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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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://yafferge.ru/strik?utm_term=how+to+change+symmons+shower+valve In PDF document text
- http://tijudiwulewanuw.getenjoyment.net/icewind_dale_2.pdfIn PDF document text
- http://just-gopro.com/devexasaxajolaon0p.pdfIn PDF document text
- http://vobarijijagurar.22web.org/wefuvuxitagalan.pdfIn PDF document text
- http://kofupum.mygamesonline.org/3._4_biogeochemical_cycles.pdfIn PDF document text
- http://wutanumijejol.sportsontheweb.net/addition_and_subtraction_worksheets_4th_grade.pdfIn PDF document text
- http://gaximivotekole.mypressonline.com/61839325047.pdfIn PDF document text
- http://nuveclovet.xyz/81325486519sfoz1.pdfIn PDF document text
- http://filuxunokenobud.mygamesonline.org/wupagozuzi.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://0f4267a5-27df-427f-b7ff-de3c6d4a4cd0.filesusr.com/ugd/9e4921_6229ed2d285c460098409aea226593c9.pdf?index=trueIn PDF document text
- https://786c536d-253b-4a15-94df-129c4693a223.filesusr.com/ugd/1fc311_2a73e01020424fcd867a8ff6c49dbe69.pdf?index=trueIn PDF document text
- http://tasetexogop.epizy.com/nazukox.pdfIn PDF document text
- https://eee7329a-c4d5-4508-a8fd-a8ba515f7d9f.filesusr.com/ugd/5ed802_02cac0fa99bf4a59b78011069cbe2e49.pdf?index=trueIn PDF document text
- https://a79fbd7c-12a6-44fe-9d3c-43dc2b0795a8.filesusr.com/ugd/f95141_76ee349963d94b17b340c62c1cc7db64.pdf?index=trueIn PDF document text
- https://711920be-b761-4f0e-a604-762b26663b16.filesusr.com/ugd/ffcbea_83d516b211224cbaa4d49868fe17783e.pdf?index=trueIn PDF document text
- http://gimusatis.rf.gd/20479167526.pdfIn PDF document text
- https://d787a32c-196b-4e99-9c98-3ae3c28023f9.filesusr.com/ugd/05b469_d420f1aca31c4afdaf9d48c497a5d776.pdf?index=trueIn PDF document text
- https://95c758d6-fd33-43c6-b5d0-f1f55e07e946.filesusr.com/ugd/cb0188_6ceab79e54984da2b440f78fb468ee60.pdf?index=trueIn PDF document text
- http://miwofalixi.rf.gd/388113070.pdfIn PDF document text
- http://gixisenusadat.rf.gd/los_angeles_housing_authority_complaints.pdfIn PDF document text
- http://sekovukubetib.epizy.com/kikiranazepozo.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ed3c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED3C | 5428 bytes |
SHA-256: e885a28dcdc047e00844c69642a28614631f58e78ae1f0cdc9ae99d21879452a |
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font_01_sfnt_off0000ffa5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFA5 | 11136 bytes |
SHA-256: 1640353f2330468d176aff23200a792c0aca7ca0a01738e96528b702bcba5ef4 |
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