MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous embedded URLs pointing to external websites, many of which are hosted on disposable domains and appear to be part of a link farm. The document body, though heavily obfuscated, suggests a lure related to 'English phrasal verbs intermediate pdf'. The presence of a ML classifier flagging the PDF as malicious and ClamAV detection further supports its malicious nature, likely for SEO spam or phishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
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://baarspo.ru/strik?utm_term=english+phrasal+verbs+intermediate+pdf PDF link annotation
- https://dobuwejakunarek.weebly.com/uploads/1/3/4/7/134772316/dfce3d.pdfIn PDF document text
- https://guravigipide.weebly.com/uploads/1/3/2/8/132815190/beteji.pdfIn PDF document text
- https://bemetezebore.weebly.com/uploads/1/3/4/8/134882820/rijipurekam.pdfIn PDF document text
- https://cdn.sqhk.co/fipexuwebo/gciingh/strategic_planning_process_in_industrial_marketing_ppt.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366033/normal_601df869c63ed.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4370560/normal_604aa4ac19bf0.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4379984/normal_5fdc1f2609919.pdfIn PDF document text
- https://cdn.sqhk.co/fumamimed/iePhfyj/mcintosh_speakers_wiki.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4393044/normal_5fdfbc65f0cfd.pdfIn PDF document text
- https://cdn.sqhk.co/benanejufa/ihIhcaS/xinun.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4391305/normal_5fd5f4b43c964.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4371495/normal_5fc62d52915e2.pdfIn PDF document text
- https://cdn.sqhk.co/tinolaseja/fUdPgek/42477970901.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4387035/normal_5ff33b922b75e.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://uploads.strikinglycdn.com/files/ceb62637-cc83-41dc-9f7a-a77f1ed571af/19666085910.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/abdfd073-c306-4b99-9b4f-aff4c9f129c3/43377799852.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/19b82cf5-2cdb-44bf-b769-31e4e5bef713/ziwuvix.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5472fedb-731f-4a2a-b06b-29be30e000fa/kofulirulijefimev.pdfIn PDF document text
- https://40052bae-d6b0-4be3-9c84-96956a804c69.filesusr.com/ugd/32907c_b84de0b5992e4d73b16c2a9899c6c315.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/81bc0964-fb32-49a0-b3e7-be37b118505b/95552702863.pdfIn PDF document text
- https://f05e0dbb-21cf-40ea-8b71-00b8d6f49a3b.filesusr.com/ugd/b09e1d_2d42e49e774f466cb03d1a18165acba1.pdf?index=trueIn PDF document text
- https://c31d65df-273c-4bcc-acfb-7b03b0724b99.filesusr.com/ugd/e7e4a0_921d5dcfa172477cb9b4d4c18aee82e2.pdf?index=trueIn 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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000eb6e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB6E | 5288 bytes |
SHA-256: 669269908d91bab621639203f14a62608a3ba8c1ffad2a1d66fb793a5cc3d8d7 |
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font_01_sfnt_off0000fd32.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD32 | 10860 bytes |
SHA-256: a81af702b58612ef5df8eb46f4a3039a8227aed3bdb89758b480a8eaf7e4f198 |
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font_02_sfnt_off00012210.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12210 | 4324 bytes |
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34 |
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