MALICIOUS
226
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
T1059.007 JavaScript
This PDF document contains a large number of external links, many hosted on disposable domains, suggesting a link farm designed to distribute malicious content. The 'SE_BROWSER_INSTALL_LURE' heuristic indicates the document's content likely prompts the user to install a fake browser extension or update, a common social engineering tactic. ClamAV detection and ML classification confirm its malicious nature, likely as a phishing or trojan delivery mechanism.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 7
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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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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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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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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://seumenha.ru/123?utm_term=nevermore+rwby+chords PDF link annotation
- https://kifesajisibak.weebly.com/uploads/1/3/4/8/134884742/zatidaxoveni_galonoxuso_mewawas_bokikas.pdfIn PDF document text
- http://ch-bewertung-2888.xyz/derokav35007.pdfIn PDF document text
- https://lelamibi.weebly.com/uploads/1/3/0/7/130738841/nefumizepa-gemebipemip-ginofebesu-nasudixaduv.pdfIn PDF document text
- https://lebabipiw.weebly.com/uploads/1/3/0/9/130968925/4b40f9c.pdfIn PDF document text
- https://zakuxaposud.weebly.com/uploads/1/3/1/3/131382531/revusona.pdfIn PDF document text
- http://trikotoria.ru/aC59FkC4B1mC4B1n_beden_dilirjyt9.pdfIn PDF document text
- http://ovca.space/nirapewetefodaxepokasupfbgq.pdfIn PDF document text
- https://dojudetokin.weebly.com/uploads/1/3/4/6/134613144/8918515.pdfIn PDF document text
- https://janososa.weebly.com/uploads/1/3/5/3/135326085/lowazanevik.pdfIn PDF document text
- http://barashik.space/123_pattern_indicatorhstlt.pdfIn PDF document text
- https://magirodimape.weebly.com/uploads/1/3/1/6/131637482/pudezajonide_wokefegomil.pdfIn PDF document text
- https://wademaleg.weebly.com/uploads/1/3/5/3/135346716/259753.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- http://rigitusavogu.epizy.com/protein_synthesis_activity.pdfIn PDF document text
- http://jugejojejaf.epizy.com/a_level_computer_science_revision_guide_ocr.pdfIn PDF document text
- http://papujov.epizy.com/67976510944.pdfIn PDF document text
- http://gefuxexo.epizy.com/5374375053.pdfIn PDF document text
- https://s3.amazonaws.com/robumuduluwise/segregation_in_a_sentence_yahoo_answers.pdfIn PDF document text
- http://vejawojifig.epizy.com/temiwifukuwujoso.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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_004_off00016aa8.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x16AA8 | 29368 bytes |
SHA-256: f29497d607d76c748b6bc242f3f9d204a06bd7df09d754f87ee74e9f62da82a0 |
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font_00_sfnt_off00013291.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13291 | 4852 bytes |
SHA-256: ef3b8183493efe110b9c25d22f64732a15d4bf5c2be3dcedd850b4dd93f716d1 |
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font_01_sfnt_off0001431e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1431E | 11496 bytes |
SHA-256: def6d9e5a722888f56407e10181a82587aed031d732c583ace1e2773674faa5c |
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font_03_sfnt_off00019e91.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x19E91 | 4324 bytes |
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2 |
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