MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a large number of external links, many pointing to disposable hosting, suggesting a link farm or phishing operation. One of the primary external URIs, 'https://dugedepap.ru/strik?utm_term=escuela+psicologica+conductista+caracteristicas', is flagged as suspicious, further supporting the malicious classification. The document body is heavily obfuscated, preventing a clear understanding of its specific lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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://dugedepap.ru/strik?utm_term=escuela+psicologica+conductista+caracteristicas PDF link annotation
- http://movawizaxaxato.mywebcommunity.org/92211460009.pdfIn PDF document text
- https://cdn.sqhk.co/gupuwiwi/cdjhXAz/72329481715.pdfIn PDF document text
- http://pukitifafizeba.mywebcommunity.org/computer_graphics_animation_programs_in_c_language_with_output.pdfIn PDF document text
- http://biniwitovo.mywebcommunity.org/49194065310.pdfIn PDF document text
- https://cdn.sqhk.co/pojimisuso/gchfuxn/pivopubowuvodujupav.pdfIn PDF document text
- https://cdn.sqhk.co/madagijoj/jhhjdjg/restaurant_halloween_salon_de_provence_place_morgan.pdfIn PDF document text
- http://pebunoguge.mygamesonline.org/rodoxitu.pdfIn PDF document text
- http://mitatizizuje.mypressonline.com/bncc_ensino_mdio_biologia.pdfIn PDF document text
- http://budofibo.mygamesonline.org/epigenetic_modification.pdfIn PDF document text
- https://cdn.sqhk.co/sixepatexup/lgLE2AU/11924662747.pdfIn PDF document text
- https://cdn.sqhk.co/kupawusel/8AqZ8xu/gupuxedoxogojalarudelemo.pdfIn PDF document text
- http://wejuveziwep.mypressonline.com/make_page_size_smaller.pdfIn PDF document text
- https://cdn.sqhk.co/kulobibab/aijzp9J/88490448018.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://6c71f620-b6e5-46cc-9e58-526c5f0a7a41.filesusr.com/ugd/1c90dc_1bf53f44be6543458fdbf206f60e24eb.pdf?index=trueIn PDF document text
- https://50e0a74f-e7a5-4ac3-a7a6-4cdd7b1ad00e.filesusr.com/ugd/8a9d9f_1ebbbcc223fa40c5a77dad07600a0648.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/9cc47b34-2fff-4d15-a93c-c5675a1def10/the_direct_labor_budget_is_based_on_chegg.pdfIn PDF document text
- https://75ca6b5e-a470-4e0e-8004-b00a9f1721b4.filesusr.com/ugd/1e4819_521dff62cf45406187bb6a50a0324593.pdf?index=trueIn PDF document text
- https://8964868a-aef6-4da0-9a9b-29de7c28e0c5.filesusr.com/ugd/b910ae_fd26890031aa4647ae42e973aea0acd9.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/1a5d1184-a5da-492c-9e17-baf5f4f30f9c/jeruwipi.pdfIn PDF document text
- https://59548cc9-d6a6-4b2e-bd73-2bfb7290c7b5.filesusr.com/ugd/3fd21f_e3583eb8e55643739b18654c75680244.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_off0000e46b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE46B | 5200 bytes |
SHA-256: 82841c03df1d92239422ae93abda4c9752564fd9ff8b757096ab899abdece7b1 |
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font_01_sfnt_off0000f62b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF62B | 11416 bytes |
SHA-256: 295ade152651088e536ad964c0f516f8e3237a7bb37f3f8c8d938fe6e79d7d22 |
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