MALICIOUS
206
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a large number of external links, many pointing to disposable domains, indicative of a link farm. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or distributing malware. The heuristic 'SE_CALLBACK_LURE' also suggests a potential phishing pretext, though the primary function appears to be link distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
Heuristics 7
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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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://leonvi.ru/award?keyword=argala+stotram+gujarati+pdf+download PDF link annotation
- http://sakhavto.ru/am_best_rating_emc_insurance_companiesombvb.pdfIn PDF document text
- http://sipipewawezizuf.getenjoyment.net/jifunazizalofujozip.pdfIn PDF document text
- http://netopodimamo.mywebcommunity.org/arduino_starter_kit_example_project_3_-_love-o-meter.pdfIn PDF document text
- http://zaxevef.getenjoyment.net/toro_51619_ultra_electric_blower_vac_reviews.pdfIn PDF document text
- http://bezerojiw.scienceontheweb.net/tewasobexeg.pdfIn PDF document text
- https://silodadut.weebly.com/uploads/1/3/2/7/132712229/fezepuku_kufedujasa_pivefijoposu.pdfIn PDF document text
- http://nigma24invest.online/3698823065s7d4a.pdfIn PDF document text
- http://form-copyrightservices.com/history_of_the_knight_chess_piece70sxp.pdfIn PDF document text
- http://gikodarekegov.mywebcommunity.org/tai_chi_exercises_for_beginners.pdfIn PDF document text
- http://gubuxuk.scienceontheweb.net/cardias_definicion.pdfIn PDF document text
- http://jedusajinud.mygamesonline.org/68708370950.pdfIn PDF document text
- https://pizakatunif.weebly.com/uploads/1/3/1/8/131856177/45e054c4.pdfIn PDF document text
- http://bikomowaxibujoj.medianewsonline.com/xakimasok.pdfIn PDF document text
- http://parazepurafeza.medianewsonline.com/47106238364.pdfIn PDF document text
- https://revevujuz.weebly.com/uploads/1/3/4/6/134678323/kerabid_dejozakonukavo_gigegomawozape_kolosirisod.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://67dec473-0a9c-497c-80b1-62a4c84c5046.filesusr.com/ugd/0aab01_81ef308073b0402d9f7eaa755705fa5d.pdf?index=trueIn PDF document text
- https://144c9d4d-401b-437b-b89f-6a5816d7da47.filesusr.com/ugd/cd33f5_ed577e9c9e2c4a3281d3f404bd7e9f93.pdf?index=trueIn PDF document text
- https://75a697d3-84f0-44cf-bab9-f05e37020c50.filesusr.com/ugd/7c3584_6a14c2dd676a4857b5e18ae9b33b5160.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/9f547568-01a8-433a-8ebb-66ecdd91ddad/46590726808.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/333439b8-048e-4911-acd3-26e2e7506dd2/87319755708.pdfIn PDF document text
- https://6e337ffa-6c75-4e98-916f-0cab85e7e3f5.filesusr.com/ugd/a22560_eddd89c5e5b74fd3afa11e37d06396be.pdf?index=trueIn PDF document text
- https://67bb8873-ca08-4da4-87c0-60a8072ebff6.filesusr.com/ugd/a838c0_d8fc8a70be55446890033213810d6c21.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_off0000e659.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE659 | 5516 bytes |
SHA-256: b366b5b54698732586b8f88d50a788a2f89ff0339d43756f20c35b80d7f2fa03 |
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font_01_sfnt_off0000f91e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF91E | 10828 bytes |
SHA-256: faef11ced5eec91c11aa4d5a1cb7ad68432e6dda1cfa8509996a6ceb17d57e83 |
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