MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous external links, many pointing to compromised WordPress sites or disposable hosting, suggesting a link farm used for phishing or malware distribution. The presence of embedded URLs and the PDF structure itself are indicative of a spearphishing attachment, likely intended to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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://nomylo.ru/uplcv?utm_term=12+to+20+table+chart PDF link annotation
- https://www.criteriainvest.com.br/wp-content/plugins/super-forms/uploads/php/files/32257o7cb5i9tv3vdr2hrsddq0/10387387509.pdfIn PDF document text
- https://2acontractor.it/images/file/bodabogixinuxisosisojus.pdfIn PDF document text
- https://www.djluk.co.uk/wp-content/plugins/super-forms/uploads/php/files/jmko9aa7q2thp669u61pt1c373/mapejebibevib.pdfIn PDF document text
- http://eltonltd.ru/sites/default/files/uploads/puxiliwedike.pdfIn PDF document text
- http://graphicon.hu/wp-content/plugins/formcraft/file-upload/server/content/files/160b63d8fe22a1---86605769056.pdfIn PDF document text
- http://www.vivelamusica.es/wp-content/plugins/formcraft/file-upload/server/content/files/160819f991c726---winamuziwu.pdfIn PDF document text
- https://atolab.it/wp-content/plugins/super-forms/uploads/php/files/df115a30726d8a326bb601a20d913f06/23139467276.pdfIn PDF document text
- http://atek-ent.com/upload/file/boredunisike.pdfIn PDF document text
- https://robertmatzuzi-massagetherapist.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16071702d7729d---jewofoxufafowuzofig.pdfIn PDF document text
- https://southernlightingsource.com/wp-content/plugins/super-forms/uploads/php/files/4e306363580b24a3f13857473640342d/2226508866.pdfIn PDF document text
- http://apsara.ru/userfiles/file/45081402138.pdfIn PDF document text
- http://reclaimsplus.com/wp-content/plugins/super-forms/uploads/php/files/c582a98eec2dbec8677b36402e62f123/jedusoliwufox.pdfIn PDF document text
- http://leap-egypt.com/wp-content/plugins/formcraft/file-upload/server/content/files/160866c8cc3b2b---12675339853.pdfIn PDF document text
- http://www.commandinglife.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fb79eead38---vebev.pdfIn PDF document text
- http://btc-ltd.com/upload/file/49579589602.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000e5b9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE5B9 | 5080 bytes |
SHA-256: 7d72c4ffab12767d702522ef5a001f3d1bfd62c98ed925c3a78d4287ec69060e |
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font_01_sfnt_off0000f6fb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF6FB | 10468 bytes |
SHA-256: 3c5267fd01e653a10cbcbde2ca3da5fb3628a0254246697c7a32d93101f933d3 |
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