MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains numerous links pointing to compromised WordPress sites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. While no scripts were directly extracted, the structure and URL patterns are indicative of a malicious document, likely delivered via spearphishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
Heuristics 6
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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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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 http://www.loockuniformes.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/160727f039880b---tuwikisarowifu.pdf In PDF document text
- http://nowyhotelik.pl/userfiles/file/36717437536.pdfIn PDF document text
- http://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/4bb8733ff8ef95a810be3d078c5b12e8/21299435800.pdfIn PDF document text
- https://www.heainc.com/wp-content/plugins/formcraft/file-upload/server/content/files/160da011d9f37f---minogudaxajuwo.pdfIn PDF document text
- http://arlingtonhigh1961.com/clients/e/ef/ef36f0800c0a5d5a0b00d5ecc8c3c6da/File/jujog.pdfIn PDF document text
- https://bitree.ru/ckfinder/userfiles/files/gebajosa.pdfIn PDF document text
- https://monarchwinemerchants.com/wp-content/plugins/super-forms/uploads/php/files/fa259d420672296b6f4da49d74417970/24114842610.pdfIn PDF document text
- http://jrpst.pl/userfiles/file/67934035206.pdfIn PDF document text
- http://christopherspubandgrille.com/userfiles/files/81909426021.pdfIn PDF document text
- http://www.bewegeninarnhem.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609b1dc5e0b1d---37166804487.pdfIn PDF document text
- https://sentinels.ro/userfiles/file/8426842958.pdfIn PDF document text
- http://alphasigmaoverseas.com/userfiles/file/towofediraxaxasijovef.pdfIn PDF document text
- http://metzpaintings.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608cc58d34ec9---paloxowufojuk.pdfIn PDF document text
- https://cor.org.ar/wp-content/plugins/super-forms/uploads/php/files/dt439i3mmppkqvlrmbl25ps46h/kibomofodogozudofonez.pdfIn PDF document text
- http://huthamcauquanggiap.com/upload/files/xukolu.pdfIn PDF document text
- http://potlista.com/file/files/89515768397.pdfIn PDF document text
- http://thankschicken.com/uploads/files/34315582236.pdfIn PDF document text
- https://bustotoronto.com/userfiles/file/51457776694.pdfIn PDF document text
- https://emmaushuis.org/pages/babamudateni.pdfIn PDF document text
- http://rusiuojigalvoji.lt/wp-content/plugins/formcraft/file-upload/server/content/files/160ec4b76a24cc---14943704905.pdfIn PDF document text
- http://svenstavik.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a18b5458ad4---17937114328.pdfIn PDF document text
- https://unicornproduction.gr/wp-content/plugins/super-forms/uploads/php/files/fb7ef77f66ea36ae97db0733792839a9/81778252626.pdfIn PDF document text
- http://sakirnoopo.ru/wp-content/plugins/super-forms/uploads/php/files/121958b20c2b06b2c49e5d6007cb6c7d/32524896986.pdfIn PDF document text
- http://gaongonmaiphuong.vn/webroot/img/files/bemavegojururufab.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=how+to+reheat+chicken+wingsPDF link annotation
- 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_off0000f1d3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1D3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off000109ea.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x109EA | 10632 bytes |
SHA-256: 711e94624b0a5f4525b46db759215ccc7c3a043ec92916176c053db461afd659 |
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font_02_sfnt_off00012240.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12240 | 17620 bytes |
SHA-256: 8febd3f7719e907fc8f82d000f1ef2ed6147d1d2e72a96882c1156ca6b35ad29 |
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