MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous links to compromised websites and disposable hosting, suggesting a phishing or malware distribution campaign. The PDF structure and embedded URLs point towards an attempt to redirect users to malicious content, likely exploiting vulnerabilities or attempting social engineering.
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://wastran.ru/uplcv?utm_term=system+software+examples+and+definition PDF link annotation
- https://medtek.vn/storage/file/78492429845.pdfIn PDF document text
- http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/7152f6aea2a0747a38c905817ff34f9b/xalukotudativevili.pdfIn PDF document text
- https://wilsonbarrera.com/inicio/wp-content/plugins/formcraft/file-upload/server/content/files/160866350a5593---telunisujinobamadujeb.pdfIn PDF document text
- http://www.gametimecatering.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e79af37766---zorizatitorane.pdfIn PDF document text
- http://www.next-conseil.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16078c03d024f2---lugexo.pdfIn PDF document text
- http://codemessaging.net/ckfinder/userfiles/files/nixamavipi.pdfIn PDF document text
- https://suemsas.com/wp-content/plugins/super-forms/uploads/php/files/ra4frp27ehtp53d3qt8s1optq3/50420924219.pdfIn PDF document text
- http://drinkandshrink.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16075a7e8e1b5b---rakeg.pdfIn PDF document text
- https://discoverapartmentsforrent.com/wp-content/plugins/super-forms/uploads/php/files/0f6074b622469378dc5db3b0248cfb95/28472900579.pdfIn PDF document text
- https://rhythmcprandfirstaid.com/wp-content/plugins/super-forms/uploads/php/files/4064d2cdc84e06dceba9db0c394f6a16/pejamolojiwapazoneda.pdfIn PDF document text
- https://orkhaconstruction.com/wp-content/plugins/super-forms/uploads/php/files/su43g2ae7v7dnkq4ip4e0ig9f9/rorujoximamizizutumolipe.pdfIn PDF document text
- http://sbsinternationalschool.org/sbsisnew/userfiles/file/tegegizoju.pdfIn PDF document text
- https://biovuspharma.net/userfiles/files/mexakemuxozule.pdfIn PDF document text
- http://informerfitness.com/wp-content/plugins/super-forms/uploads/php/files/c73be0f2e0904105a8523b7975500220/rupafut.pdfIn PDF document text
- http://barcelonasixtytwo.com/userfiles/file/97425615178.pdfIn PDF document text
- http://sghscsjamarai.org/guruhargobind/userfiles/file/dizefaguripowemabojotuxe.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_off0000cf29.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCF29 | 5552 bytes |
SHA-256: ae7b8aa0fe7374521e4f7d4ccdcec5d721cd8df99b7d4b1b3d63ae03fc8a542c |
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font_01_sfnt_off0000e211.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE211 | 9700 bytes |
SHA-256: 5817c33aed7053e7bb29d8c104c1f9cb733c0c1266eab82effe1eabe88b5fe23 |
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