MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains multiple embedded URLs, with one specifically identified as a potential phishing lure related to 'authorised signatory letter format'. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to trick the user into downloading a malicious payload. The presence of external URIs and the 'link farm' heuristic suggest the PDF is part of a broader phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
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 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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://xezojetit.ru/123?utm_term=authorised+signatory+letter+format+for+pvt+ltd PDF link annotation
- http://unlockdeals.shop/33810655054hwvr7.pdfIn PDF document text
- http://mscredit.info/38951734271xi0zw.pdfIn PDF document text
- http://scrlt.xyz/alan_walker_faded_piano_sheet0irbt.pdfIn PDF document text
- http://xapiduxirob.mywebcommunity.org/can_you_calibrate_an_infrared_thermometer.pdfIn PDF document text
- http://xonigej.mypressonline.com/fegejipifir.pdfIn PDF document text
- http://rukozhop-guide.com/hp_probook_6570b_i5-3210m_review87h9m.pdfIn PDF document text
- http://vaxisezawoged.scienceontheweb.net/96312708847.pdfIn PDF document text
- http://gufutaca5.xyz/2014_honda_accord_sport_service_manualwc3ni.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/75891f81-bbe6-41e1-8e86-3ca335f7d0d6/2005_cadillac_sts_v8_0-60.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a04969a4-7899-4734-927c-522f13ea19f8/86697299271.pdfIn PDF document text
- https://s3.amazonaws.com/towakog/ffxi_whm_solo_leveling_guide.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0fc92287-50c7-467f-ad99-8903c95012c0/que_es_la_palabra_sabiduria_en_la_biblia.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e056a9e8-0ef0-422f-80c4-6a16ade2db5f/a_simple_favor_movie_spoiler_synopsis.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b1ea3b47-0a1d-46f1-9b19-a7f052ba0a8e/51736787186.pdfIn PDF document text
- https://s3.amazonaws.com/nijudow/free_english_grammar_exercises.pdfIn PDF document text
- https://s3.amazonaws.com/mozirolinitaje/akshardham_mandir_delhi_photo.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5fce0b03-32ea-479c-b2d6-7546188f6586/zulifufurevirovabi.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/26e0678b-4e75-4142-a370-2fa84f940e3a/tp_link_smart_plug_wont_connect_to_alexa.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a8b06c84-7c23-49a1-9174-51d57518e1b0/asus_router_rt-ac68u_specs.pdfIn PDF document text
- https://s3.amazonaws.com/fizaxo/aace_dyslipidemia_guidelines_2019.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3dafc85e-d118-4460-a9f8-58b03709a353/vobelokan.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ec5f92d9-2028-4f16-be40-2c1a18d1b008/rejaxuv.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/99b06d89-bc59-41f6-9a66-faa6fc33ff8e/human_resource_management_indian_authors.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_off0000de27.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE27 | 5608 bytes |
SHA-256: b7b38ad53062fa426c64f2b1916f7268f8f70a2449bea18ca994260fc01d7e0f |
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font_01_sfnt_off0000f120.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF120 | 10716 bytes |
SHA-256: 4bf605d7b353b4d6e09cfd5c05c804ae99aaf5476cd26c4d11be49d8bdfd9394 |
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