MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of embedded links pointing to external PDF files, many hosted on disposable or suspicious domains. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' and 'PDF_SEO_LINK_FARM' indicate that these links are likely part of a phishing or malware distribution scheme. The ClamAV detection and ML classifier further support the malicious nature of the file.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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://crophysi.ru/strik?utm_term=asme+y14+5m+2009 In PDF document text
- https://lefewaxenu.weebly.com/uploads/1/3/4/0/134012542/zewovi.pdfIn PDF document text
- https://kiragidemi.weebly.com/uploads/1/3/0/7/130775435/pubitepewotumoriwim.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4387813/normal_5febf84569575.pdfIn PDF document text
- https://litolojinoforiw.weebly.com/uploads/1/3/4/7/134721995/poguvalibotogevi.pdfIn PDF document text
- https://paludiwebi.weebly.com/uploads/1/3/4/0/134012690/3664485.pdfIn PDF document text
- https://zoxutelipiroga.weebly.com/uploads/1/3/1/8/131871488/jijurimomix.pdfIn PDF document text
- https://xijananok.weebly.com/uploads/1/3/0/7/130740199/wuloropo_nopuzudaga_salubopuzoxase_sigasimiwufoke.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4416140/normal_6049163487c93.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4371791/normal_60283bab3dbd3.pdfIn PDF document text
- https://jovonawokemurif.weebly.com/uploads/1/3/4/6/134678447/c5d9cf7.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4530429/normal_603149c171cc9.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4387814/normal_5fca191f67e29.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/lomogas/what_are_the_essential_elements_of_a_map.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/808ca8fb-67b3-4f3f-b087-b6ed518d8b11/xozomuwujizox.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/037b7c4e-106f-480a-8791-935a8a73f628/51619207922.pdfIn PDF document text
- https://s3.amazonaws.com/zosevid/hangout_apk_latest_version.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/afa7188c-c806-4dab-8bf7-0ef2710f1f93/68561316035.pdfIn PDF document text
- https://s3.amazonaws.com/fusopoxipo/suwesupojawodajasizon.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/971968c1-4d38-4ce0-b976-cbeef3a41677/technical_graphics_communication_4th_edition.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/348349c8-3ba4-4545-acae-ddfbf721bd3b/84027273749.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/abad4ed1-4f03-476a-aec8-877d7d649cb4/94562393683.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_off00010a6f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A6F | 5276 bytes |
SHA-256: 6f062ea15da57b4a6c32712b1c00bdd1d2fb6ff1dfbae5e9f692b424ec78ef5b |
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font_01_sfnt_off00011c71.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C71 | 10728 bytes |
SHA-256: 7dd1e99de5558f9e9ef0e815c29eb5ee76b39f36314ad74b3461c264ee0578dd |
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