MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm or phishing operation. The document body, though heavily obfuscated, appears to be a lure related to English conversation practice apps, likely to trick users into clicking malicious links.
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://zajinet.ru/strik?utm_term=best+english+conversation+practice+app+in+india PDF link annotation
- https://cdn-cms.f-static.net/uploads/4463009/normal_6064b0ed9ed89.pdfIn PDF document text
- https://tugupititu.weebly.com/uploads/1/3/4/8/134887320/pevuvetit-gasomolepe-watokotelaxumom.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4417530/normal_5ff59ad42ff9b.pdfIn PDF document text
- https://gareketekefebon.weebly.com/uploads/1/3/4/6/134695024/dujedupamima.pdfIn PDF document text
- https://zexawowa.weebly.com/uploads/1/3/6/0/136081798/8488684.pdfIn PDF document text
- https://vuvuzuvikedatun.weebly.com/uploads/1/3/4/5/134529562/3794139.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4411694/normal_60256d168fb20.pdfIn PDF document text
- https://muwivagejexe.weebly.com/uploads/1/3/1/3/131379070/d232b62.pdfIn PDF document text
- https://nabiwadi.weebly.com/uploads/1/3/5/2/135298838/7865403.pdfIn PDF document text
- https://kimonasisu.weebly.com/uploads/1/3/5/4/135400987/fazeni.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4475859/normal_60101e3d0efe9.pdfIn PDF document text
- https://wubeponasi.weebly.com/uploads/1/3/1/6/131606197/6075844.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4417983/normal_5ffa8ddb44a86.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4450731/normal_60538c070a4c1.pdfIn PDF document text
- https://tozubovudifudi.weebly.com/uploads/1/3/5/9/135973827/fobitowufozuseweg.pdfIn PDF document text
- https://sejiganabukuja.weebly.com/uploads/1/3/4/5/134585043/doxerofizureda.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/ac29a356-d2c7-42b9-b792-95407960895d/how_to_refill_bostitch_electric_stapler.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/42533e32-90ad-4723-b9c9-69944b057a06/hp_laserjet_pro_400_color_toner_replacement.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/af890a50-c913-47bf-9bf5-21ad9a1515f0/15566472630.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/198e01f7-bf95-468a-af6b-f7550a6cdf2a/6141784242.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/45f0f0c4-8603-4caa-b0ec-1e6bd47e9b34/muzuri.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_off0000ec24.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC24 | 5444 bytes |
SHA-256: 8bc6ca00c11be5262d513537b41ef7e55bb70ce3b3e36977d7398dc1800f28c1 |
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font_01_sfnt_off0000feb1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFEB1 | 10576 bytes |
SHA-256: 2a8a8dcbc8d8bdb4530750964c2fa289eed8d65b11c68a5c218ac73db5d7c569 |
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