MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file is identified as malicious by ML classifiers and ClamAV, with a specific detection name indicating phishing and trojan behavior. It contains a significant number of external links, many pointing to disposable hosting, suggesting a link farm or phishing campaign. The document body, though heavily obfuscated, contains references to 'English grammar book pdf class 6' and 'wkhtmltopdf', indicating a lure to disguise malicious intent. No scripts were extracted, but the presence of numerous external links suggests potential redirection to malicious sites.
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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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://bologen.ru/strik?utm_term=english+grammar+book+pdf+class+6 PDF link annotation
- https://static.s123-cdn-static.com/uploads/4367940/normal_6004785d02642.pdfIn PDF document text
- http://mattelipsticks.site/tiribegopevezeihdmo.pdfIn PDF document text
- https://limowofexi.weebly.com/uploads/1/3/4/2/134235517/duleduriminexo.pdfIn PDF document text
- https://cdn.sqhk.co/xidizizo/5quhjs8/beginners_guide_to_macro_photography.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4450730/normal_603c70a978cd5.pdfIn PDF document text
- https://pexagujunivati.weebly.com/uploads/1/3/4/6/134684520/gomopanip.pdfIn PDF document text
- http://mibijuzorifif.getenjoyment.net/tizanoridanemebevoru.pdfIn PDF document text
- http://xepewifub.mygamesonline.org/wordly_wise_book_5.pdfIn PDF document text
- http://purpless.vip/fosanisoigq5.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4475989/normal_602822f112bc0.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4417422/normal_601d297e66954.pdfIn PDF document text
- http://pollsexpert.com/professional_accountant_cvj5jqo.pdfIn PDF document text
- https://cdn.sqhk.co/lepitajirel/jd6Piii/asian_murder_hornet_pictures.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4485005/normal_5feb84e501c0f.pdfIn PDF document text
- http://jologedeb.getenjoyment.net/physical_carcinogenesis.pdfIn PDF document text
- http://lapiwudoxavov.scienceontheweb.net/bls_e_acls.pdfIn PDF document text
- http://duzegotola.medianewsonline.com/digital_oscilloscope_manual.pdfIn PDF document text
- https://gufakapefevem.weebly.com/uploads/1/3/5/9/135994046/rorunid_gogokupad_ferexogumibumu.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://47ab6ce1-aee6-4086-a8e7-31fe393d2411.filesusr.com/ugd/afbef4_e1c9679ab44e4e09ad5a8ab354ce3f48.pdf?index=trueIn PDF document text
- https://357b8bef-7330-4cfe-b31d-389db25c4d5a.filesusr.com/ugd/4c76bf_9a55089f24cc47afa9f9e6d7d0bb5962.pdf?index=trueIn PDF document text
- https://b354d503-40d1-4c97-84b4-bc0b16c12f35.filesusr.com/ugd/8c7d07_ed14104cb599434393d812cf87308c6a.pdf?index=trueIn PDF document text
- https://aa514bbb-a96e-4bc9-8ff3-0ca2edd1104f.filesusr.com/ugd/3fc21f_559c253f33804a84bb51a5b29598937d.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e978.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE978 | 5884 bytes |
SHA-256: 0fc71f11edde044d2734592be8e6872057b78ea4813b46478776e95748af16a0 |
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font_01_sfnt_off0000fd58.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD58 | 10780 bytes |
SHA-256: b113aea4b9e9e0a616faf2e365bf9a4a5bef062b945ae05b987ca2895e9b34bf |
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