MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links, many pointing to compromised CMS upload storage and disposable hosting, indicating a link farm designed to redirect users to malicious sites. No scripts were extracted, but the overall structure and heuristic firings strongly suggest a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
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://szkolaprzybranowo.pl/ckfinder/userfiles/files/gejakajema.pdf In PDF document text
- https://webgirls-studio.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b547196586b---jujuzolinizipevolirarotix.pdfIn PDF document text
- http://fabtur.ru/upload/files/89417480215.pdfIn PDF document text
- http://cdhsalumni.com/clients/28864/File/lepot.pdfIn PDF document text
- http://gildiamasterov.ru/userfiles/file/danitilobudinalokeguz.pdfIn PDF document text
- http://am-assets.com/aom/magnolia/userfiles/file/9261974336.pdfIn PDF document text
- http://mextro.de/upload/files/62451902735.pdfIn PDF document text
- https://frasertechno.com/wp-content/plugins/formcraft/file-upload/server/content/files/160870220eede1---dolizosakonefubabetomugep.pdfIn PDF document text
- https://timjanen.se/anvandarbilder/53/files/tozizasemiwuro.pdfIn PDF document text
- https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a676b5aab98---zufazoropafaru.pdfIn PDF document text
- https://www.reliancecareuk.com/wp-content/plugins/super-forms/uploads/php/files/279c745c083483e9b186711930a72db2/53260037750.pdfIn PDF document text
- http://businessplan-capalpha.eu/mbp/upload/images/images/upload/ckfinder/42254435884.pdfIn PDF document text
- https://eduinfinite.com/wp-content/plugins/super-forms/uploads/php/files/754f559daa13e50509194bdb16e9f87d/janozesidixovuwin.pdfIn PDF document text
- https://annjulieskarpmo.com/userfiles/file/figapenojat.pdfIn PDF document text
- http://etasystem.net/userfiles/files/mosaje.pdfIn PDF document text
- https://htfcompact.com/wp-content/plugins/super-forms/uploads/php/files/70fe4c350cf529afe909da8ebb9f1d29/65071967369.pdfIn PDF document text
- https://forex-robo.org/wp-content/plugins/super-forms/uploads/php/files/65fb67bba0f10fdc4bdcdf01605f798b/40983945466.pdfIn PDF document text
- http://hillcountryawningsandsunscreens.com/wp-content/plugins/formcraft/file-upload/server/content/files/160769522637cf---55501014883.pdfIn PDF document text
- http://quickfix-poland.com/wp-content/plugins/formcraft/file-upload/server/content/files/160868821e97bf---bukojaxikokel.pdfIn PDF document text
- http://sequirk.ie/userfiles/file/zefevisob.pdfIn PDF document text
- https://www.hemoroidklinigi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607933b21c173---53282474133.pdfIn PDF document text
- http://www.520amis.com/upload/files/reradanu.pdfIn PDF document text
- https://thehamptonsbloomington.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087d54ca0c01---80318855279.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=4+letter+word+forPDF 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_off0000f45a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF45A | 17660 bytes |
SHA-256: 6f46edf7e33e1e9aab2a2a38a8744fd98ffeec4121ddec181ce4ea3de65143ab |
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font_01_sfnt_off0001225e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1225E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00013a74.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13A74 | 9888 bytes |
SHA-256: d16951539595f12b3f2c8442a40553cbeb201308dbe062d4ac9ff764f66d5c96 |
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