MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file contains multiple embedded links, with at least one pointing to known malicious redirector infrastructure. The document body, though heavily obfuscated, suggests a lure related to 'Apostila capelania escolar pdf'. The presence of numerous links on disposable hosting further supports a phishing or redirection scheme. No scripts were extracted, but the primary attack vector appears to be directing users to malicious URLs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 5
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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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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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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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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://yafferge.ru/123?utm_term=apostila+capelania+escolar+pdf In PDF document text
- http://nigasheff.xyz/41656173838upumd.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4455399/normal_5fdf9731cda99.pdfIn PDF document text
- https://cdn.sqhk.co/rewazexi/hihfPhf/53243200855.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4423714/normal_5fe10183e6c7e.pdfIn PDF document text
- http://busevabafumoje.iblogger.org/etiology_of_angina_pectoris.pdfIn PDF document text
- https://cdn.sqhk.co/rupomotiz/highshi/elements_of_a_short_story_video.pdfIn PDF document text
- http://neriwor.medianewsonline.com/arthur_conan_doyle_history_of_spiritualism.pdfIn PDF document text
- http://gevejune.iblogger.org/history_of_western_philosophy_terjemahan_bahasa_indonesia.pdfIn PDF document text
- http://yoga-fitness.space/wabeji1ezp1.pdfIn PDF document text
- http://erogan-oficial.site/a_seguir_aparece_o_diagrama_de_fases_do_dioxido_de_carbonoce4mb.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4409405/normal_601e4c952aeb3.pdfIn PDF document text
- http://filfex.ru/how_to_use_bluetooth_headset_with_cisco_ip_communicator6ihav.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4414866/normal_6021074657a0c.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://givetupazowo.onlinewebshop.net/xilefule.pdfIn PDF document text
- https://5548a280-a194-4776-8019-0e256783c1fa.filesusr.com/ugd/f2c1dc_29b434f4047747869d252a8808990dd8.pdf?index=trueIn PDF document text
- https://ae26bae5-b1f3-4fb2-a0ba-5d2f2d23988c.filesusr.com/ugd/aec2ea_4087eb3470fa4ab4beb2d3c3b19fc471.pdf?index=trueIn PDF document text
- https://fb9345b8-40be-4608-a8ff-9c5427dba92f.filesusr.com/ugd/98d639_6c7591f66fdb44ac9abec13cfcf635ac.pdf?index=trueIn PDF document text
- https://6bb2b61b-82bf-473b-8365-63ddb02ddbdd.filesusr.com/ugd/d55797_9fdb295ddc5440f38e0fc5653584927f.pdf?index=trueIn PDF document text
- http://varoniwarovez.rf.gd/natitepajub.pdfIn PDF document text
- http://kutoxinupuroxo.onlinewebshop.net/can_you_buy_penny_stocks_on_robinhood.pdfIn PDF document text
- http://neriwapawegos.epizy.com/andy_gibb_songs.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_off00016646.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16646 | 5140 bytes |
SHA-256: cf6b537f2bddf345088d28ec8038d553d190bac1b697bcce265aedae194ed713 |
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font_01_sfnt_off000177d2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x177D2 | 14872 bytes |
SHA-256: 5c275dd01dc421a65be155e547c4d298ada1d0d452a44f3cac0ad0f527377094 |
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