MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
This PDF document was flagged as malicious by ClamAV and an ML classifier. It uses a LOLBin command-execution lure. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMANDExtracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
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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://vilenefex.ru/wix?keyword=holt+elements+of+literature+fifth+course+textbook+pdf PDF link annotation
- http://fbcopyright-center.com/what_were_the_mesopotamians_like2rxz6.pdfIn PDF document text
- http://makebugobiwuka.mypressonline.com/iowa_code_sec_714.2.pdfIn PDF document text
- http://tinubawolu.mywebcommunity.org/52583113057.pdfIn PDF document text
- http://munasimowijuxi.getenjoyment.net/ansiedad_en_adolescentes.pdfIn PDF document text
- http://kotumixevana.22web.org/2015181822.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4375194/normal_60226f21c4806.pdfIn PDF document text
- http://invitesistem.ru/how_to_run_python_scripts_in_powershellxg0ni.pdfIn PDF document text
- http://psychologyrelax.xyz/introduction_to_data_science_machine_learning__ai_using_r3fvji.pdfIn PDF document text
- http://zukoretevir.medianewsonline.com/digital_marketing_concepts.pdfIn macro / runtime command snippet
- http://kokulotasuz.mygamesonline.org/jubisan.pdfIn PDF document text
- http://bostpolamos.site/72829197758ywwem.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4446395/normal_601365cc75aba.pdfIn PDF document text
- http://wownatural.fun/residual_income_formula_exampleckqjk.pdfIn PDF document text
- http://fazurusitu.getenjoyment.net/tekixi.pdfIn PDF document text
- http://psychologyrelax.xyz/introduction_In macro / runtime command snippet
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://zijiwaras.onlinewebshop.net/amylose_content_in_rice.pdfIn PDF document text
- http://dunobumuvoz.epizy.com/96747110653.pdfIn PDF document text
- https://aa6eca1a-c690-4a36-985e-a873157a80b3.filesusr.com/ugd/081493_017dcaa0ac504d34a8e62061b1d31ca9.pdf?index=trueIn PDF document text
- http://gajijap.epizy.com/lijupoxawosolavanorebox.pdfIn PDF document text
- http://doputokodopesib.rf.gd/siruno.pdfIn PDF document text
- http://vokesakogo.onlinewebshop.net/wovupagusesawej.pdfIn PDF document text
- https://05790d5e-93e9-4545-bcc4-99c37f081c18.filesusr.com/ugd/bff4d5_0c8e10193adb4f889256ee6c2c8e0805.pdf?index=trueIn PDF document text
- http://kibululugavi.epizy.com/why_is_apple_books_not_working.pdfIn PDF document text
- https://6bfd3344-23d3-4e03-ab7d-00c1c23eecf6.filesusr.com/ugd/be19e1_9e519e67fa0a4a2c855a29c874d93acb.pdf?index=trueIn PDF document text
- https://6184de0c-c318-42a7-882e-c5ddc63b817d.filesusr.com/ugd/1c8c1e_634c2b4583444bee80441cacbad0bffe.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_off0000d0c5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD0C5 | 5628 bytes |
SHA-256: 0305c9227ca1f1a052f04932c27020c39040cadb1c60f2f45e9ee7198597adea |
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font_01_sfnt_off0000e3b7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE3B7 | 11140 bytes |
SHA-256: d7cfd16aaf3be0b967b27a0376a78fbef012361e4a1f841f047f7a47d03f44ee |
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