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 ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous links pointing to compromised WordPress sites, suggesting it functions as a link farm to distribute further malicious content. The presence of these links and the overall structure strongly suggest a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9761
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://www.gs-gleichmann.de/wp-content/plugins/formcraft/file-upload/server/content/files/160aa39d0b5ec9---kasedivaxezuxumajefuze.pdf In PDF document text
- http://msinziniering.com/userfiles/file/66593671094.pdfIn PDF document text
- http://www.atrium-tuiles.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081cd17b2e09---wasepisusibofavu.pdfIn PDF document text
- https://tehnol.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160cf14e3ace5a---junofowataxubofipukazixov.pdfIn PDF document text
- http://www.radiopopiatej.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076e0f3aa679---34472051344.pdfIn PDF document text
- http://intergeored.com/upload/File/kidogisukaj.pdfIn PDF document text
- https://dezsredstvompx.ru/wp-content/plugins/super-forms/uploads/php/files/6e559a32d607d1df16ac4f8c759e7dcb/siroxagogujovu.pdfIn PDF document text
- http://escolacaritas.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070a391ecc26---gumepalovebusedufozixiji.pdfIn PDF document text
- https://www.darrellstuckey.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c8511be3c7---jovazagavagupifa.pdfIn PDF document text
- https://avenirpourtous.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1609be17b6335d---vosuposafavi.pdfIn PDF document text
- https://braviengenharia.com.br/wp-content/plugins/super-forms/uploads/php/files/qjvp0suv06nfa1vvvmdgb03fml/pedunetegowosogubivu.pdfIn PDF document text
- http://brmhn.com/userfiles/file/20210516215452_c7lxgm.pdfIn PDF document text
- http://kraljicabih.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081d069a66b8---44021360279.pdfIn PDF document text
- http://www.kreasoft.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1606d3ad920c68---jisivasilakafasaju.pdfIn PDF document text
- https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/66larqumgkjso4f8chu2ut9ndj/rokuverireposukenajagumi.pdfIn PDF document text
- http://activesolutionelectric.com/images/file/90344078136.pdfIn PDF document text
- https://gccpay.net/wp-content/plugins/super-forms/uploads/php/files/ace075985e05331e72a6dc5223c2619c/jezezarevoke.pdfIn PDF document text
- https://www.hediyevideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a3970488bb6---kagatus.pdfIn PDF document text
- http://gf-location.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1606c74b405322---logagaxulisam.pdfIn PDF document text
- https://hcs1000.org/wp-content/plugins/super-forms/uploads/php/files/8e708c5194ac33e1fe6c751377d6361b/xowoliriselepuvelego.pdfIn PDF document text
- https://amd-export.com/site/upload/file/zibup.pdfIn PDF document text
- https://rinducm1.com/contents//files/ratujezojamexa.pdfIn PDF document text
- https://wlao.on.ca/wp-content/plugins/super-forms/uploads/php/files/578df8301b212259f0b2e291d4e8fe33/46843294672.pdfIn PDF document text
- http://forter.vn/hinhanh/file/45683083927.pdfIn PDF document text
- http://school19-zav.ru/userfiles/file/wovefubosinu.pdfIn PDF document text
- http://nt-module.ru/ckfinder/userfiles/files/foxojebejux.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=amp+to+kwhPDF 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_off0001ec38.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1EC38 | 19536 bytes |
SHA-256: 9a3ca7dda7f5f99e5458d11988c5a8a3ce2da9a685825b8c16d8e1a18127c92f |
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font_01_sfnt_off00022059.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x22059 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0002386f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x2386F | 9872 bytes |
SHA-256: efab4a27bffec48e18ef82421e9896b64a4e5c042dc3e6ccb0f14cb4290b9de8 |
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