MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was detected as malicious by ClamAV and a machine learning classifier, indicating a high likelihood of malicious intent. It contains embedded JavaScript and numerous external URIs, suggesting it is designed to exploit vulnerabilities or redirect users to phishing sites. The heuristic 'SE_LOLBIN_RUN_COMMAND' also indicates potential command execution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9889
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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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://nomylo.ru/uplcv?utm_term=long+o+and+short+o+sounds PDF link annotation
- https://lsp.od.ua/wp-content/plugins/super-forms/uploads/php/files/6a7i5l1tmfb4icjdtcm836ipk0/32141570893.pdfIn PDF document text
- http://bafiti.com/sklep/userfiles/file/17229591512.pdfIn PDF document text
- https://larrialdiak.es/files/galeria/files/woleje.pdfIn PDF document text
- http://xn--80aaa1acmiejxr6d7fg.xn--p1ai/data/files/vugasomuvuxidoma.pdfIn PDF document text
- http://perechen-izdaniy.ru/js/ckfinder/userfiles/files/bazikudatulomofitoli.pdfIn PDF document text
- https://preciseenergygroup.com/media/tubinewejapi.pdfIn PDF document text
- http://qdcmd.com/data/files/50937045759.pdfIn PDF document text
- http://dierenwinkelindex.nl/images/uploads/80260591024.pdfIn PDF document text
- http://kimkhimientrung.com/uploads/image/files/bipogezitirijekegubes.pdfIn macro / runtime command snippet
- https://piauiaqui.com/ckfinder/files/jizarazotizimijez.pdfIn PDF document text
- https://sierrainstruments.cn/fckeditor/editor/filemanager/connectors/php/fckeditor/upload/202109/file/rasapujepede.pdfIn PDF document text
- http://thaifilmind.com/upload/files/tupudawub.pdfIn PDF document text
- https://canevastoilestjean.com/upload/editor/file/23422277211.pdfIn PDF document text
- http://theurbanbazzaar.com/userfiles/file/jodoxujiwekinisofe.pdfIn PDF document text
- http://ozt.zielonetarasy-cieplice.pl/uploads/userfiles/files/17941828417.pdfIn PDF document text
- http://weighlessthisyear.com/ckfinder/userfiles/files/kiwosulalonowa.pdfIn PDF document text
- http://aytekinpolatel.com/image/files/72538063833.pdfIn PDF document text
- http://a-pluset.com/userfiles/46120029865.pdfIn PDF document text
- http://xn--djr00fsyfv0o5qgy9u.net/filespath/files/20211001120059.pdfIn PDF document text
- https://299-45.com/CKEdit/upload/files/12786510441.pdfIn PDF document text
- https://yuktiedu.com/wp-content/plugins/super-forms/uploads/php/files/e3c616eda08c3a83592dae30747792e6/20795048215.pdfIn PDF document text
- http://cen7dias.es/userfiles/files/lotetimiruzizox.pdfIn PDF document text
- http://aqs-group.it/userfiles/files/vewodilegamubuxajukanali.pdfIn PDF document text
- http://manavpublicschool.org/manav/userfiles/file/wagologubisimewobuxogi.pdfIn PDF document text
- http://dierenwinkelindexIn macro / runtime command snippet
- 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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000144d0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x144D0 | 19800 bytes |
SHA-256: 1dce0cd3999633bd805cef02e1a9c8a0dad053cb986901ae2ef03f9e7ed55174 |
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font_01_sfnt_off0001782d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1782D | 10312 bytes |
SHA-256: ebf4e06dc12fef29df8735cf1b9bb8fda019fa5b71b2ba31edb96831c1f64a79 |
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font_02_sfnt_off00018f31.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x18F31 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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