MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm pointing to compromised WordPress upload storage and other disposable hosting, suggesting a phishing or malware distribution scheme. The embedded URLs are the primary indicators of compromise, directing users to potentially harmful sites.
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://irlanc.ru/uplcv?utm_term=site+footer+examples PDF link annotation
- https://g-ortho.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160782a5704a29---fepavunavifufowimexo.pdfIn PDF document text
- http://clearlakesd.org/wp-content/plugins/formcraft/file-upload/server/content/files/16097831c9a3e5---mezibo.pdfIn PDF document text
- http://www.centralperdana.com/file/kibadosipakanabasov.pdfIn PDF document text
- http://ccswcd.com/userfiles/file/lomafaruka.pdfIn PDF document text
- http://saydersan.com/firma/files/ponotamosob.pdfIn PDF document text
- https://www.gasserbush.com/wp-content/plugins/super-forms/uploads/php/files/e0691751c65f8ae897dc508719e3c926/80305105828.pdfIn PDF document text
- http://veronicanealhome.com/wp-content/plugins/formcraft/file-upload/server/content/files/2/16091e315e45be---gununanesajifuzeminugaru.pdfIn PDF document text
- https://xo-sound.ru/userfiles/file/wikogopap.pdfIn PDF document text
- http://ks4073.com/file_media/file_image/file/10775541622.pdfIn PDF document text
- https://lightsourceindiana.com/wp-content/plugins/super-forms/uploads/php/files/d0f676bec69d47c230db4fef1d2fdf51/93394778243.pdfIn PDF document text
- https://ncsccalgary.com/userfiles/files/88410542790.pdfIn PDF document text
- http://fireprovietnam.net/luutru/files/genuvizofeza.pdfIn PDF document text
- http://www.multigacos.com/admin/uploaded/fck/file/rixizodirat.pdfIn PDF document text
- http://xn--h1aaebajlcgx.xn--p1ai/sadm_files/77362650196.pdfIn PDF document text
- http://rittenhousereunion.com/clients/a/ad/ad7d26974070b67854a29702aed78614/File/5503355243.pdfIn PDF document text
- http://beiwendq.com/userfiles/file/botirodej.pdfIn PDF document text
- https://dfa-finanz.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a7453491f69---28237970211.pdfIn PDF document text
- http://didopack.com/files/xewawabesanikivunavawuxuf.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
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d979.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD979 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f18b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF18B | 17588 bytes |
SHA-256: 77143357713dee7c50004dc67ba69a4ec51544cac1dcbb87ff882c2aa88fcbf4 |
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font_02_sfnt_off00011f75.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F75 | 10592 bytes |
SHA-256: 806502a16ef5a86d62bb905ea19332becf8aa033943b35376bcb2323bf564ba6 |
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