MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links, many pointing to compromised WordPress upload directories and disposable hosting, suggesting a link farm used for phishing or malware distribution. The PDF structure and link farm behavior are consistent with a spearphishing attachment designed to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9803
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://penzionradvanice.cz/res/file/33147996537.pdf In PDF document text
- https://www.llgnjinc.com/wp-content/plugins/super-forms/uploads/php/files/cb0eccf922ce740e4001ac11c5f219f8/kobeg.pdfIn PDF document text
- https://bayardplaza.co.uk/wp-content/plugins/super-forms/uploads/php/files/lp3oqj9cibrni0c1df6tp1sjlt/xabopafikazulitip.pdfIn PDF document text
- https://www.kiteschule-kiel.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c02b75d8ff2---megug.pdfIn PDF document text
- https://semineebrasov.ro/printuri-fi/files/lirarebokuvufudo.pdfIn PDF document text
- http://jevades.com/aircraft/fckimages/file/subuwopetak.pdfIn PDF document text
- https://minipowerpack.net/upload/files/6470890205.pdfIn PDF document text
- http://bright-mineral.com/uploadfile/file/2021060915481616.pdfIn PDF document text
- http://visualpaint.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607341b64f421---mokonakegefatatele.pdfIn PDF document text
- http://arcomproltd.com/userfiles/file/78292320089.pdfIn PDF document text
- http://baaningdoi.com/file_media/file_image/file/76576023201.pdfIn PDF document text
- http://www.mondzorgvesa-voorschoten.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16099f60b7ba70---xilabugaxi.pdfIn PDF document text
- https://propbrains.com/wp-content/plugins/super-forms/uploads/php/files/mhecnhvmegdvrlh0atlql38rr1/97702797238.pdfIn PDF document text
- http://krindustria.com.br/site/wp-content/plugins/formcraft/file-upload/server/content/files/160a135db4ee32---sekitobojavizunibuk.pdfIn PDF document text
- http://aclamerica.com/customers/CMS-IMAGES/file/86501813946.pdfIn PDF document text
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160d4ccff69e83---biluxegepemakara.pdfIn PDF document text
- http://yaqeen-eg.com/userfiles/file/bikapususe.pdfIn PDF document text
- http://iglozawiercie.pl/zdjecia/file/paremevaperado.pdfIn PDF document text
- https://antoinepanau.com/wp-content/plugins/super-forms/uploads/php/files/911fea47dd9b9cf9fb434ffc68d6d162/duguku.pdfIn PDF document text
- http://bertrandetgastineaudesigners.com/userfiles/file/duzubipoxawibesawutaditiv.pdfIn PDF document text
- https://www.sgestrecho.es/wp-content/plugins/formcraft/file-upload/server/content/files/160812097eed00---53836699239.pdfIn PDF document text
- https://www.charityweiss.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c98c0adf802---84261194183.pdfIn PDF document text
- https://gpagroup.in/wp-content/plugins/formcraft/file-upload/server/content/files/160a11cd20ff44---segebijeg.pdfIn PDF document text
- https://mbzgogo.xyz/web/img/podborky/files/55170844972.pdfIn PDF document text
- http://www.segurosfacility.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160871b78d3e04---74453970805.pdfIn PDF document text
- https://3drm.bg/uploads/pictures/files/rofijije.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=zaire+river+in+africaPDF 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_off00012929.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12929 | 9924 bytes |
SHA-256: ecfae94ea54b4d9a2df159449ec332cb4425ee602ec4818de5571f7b8fadcfd7 |
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font_01_sfnt_off00013f32.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13F32 | 19100 bytes |
SHA-256: 898f1a10ab674165c5442c3dc8afa22ca09105bc7e235d044e4ca5e2dbda4a22 |
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font_02_sfnt_off000170a5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x170A5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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