MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains numerous links pointing to various websites, many of which are hosted on disposable or compromised domains, indicating a link farm designed for malicious redirection. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware distribution. The presence of multiple PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics further supports this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
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 http://antifftech.com/uploadfile/file///2021060112591738.pdf In PDF document text
- https://youstore21.com/wp-content/plugins/super-forms/uploads/php/files/dc6cc2c9b796494d830d64db18cd7af1/76907865257.pdfIn PDF document text
- http://angelojrobles.com/admin_initial_test/userfiles/file/55837224814.pdfIn PDF document text
- http://www.uppld.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b488d8cacac---53169280589.pdfIn PDF document text
- https://seataclightingalaska.com/wp-content/plugins/super-forms/uploads/php/files/087ee2c0547c677f9e9e5e4fd16e5d95/39653301448.pdfIn PDF document text
- http://beepost.vn/upload/userfiles/files/xiguxuwekizir.pdfIn PDF document text
- http://ya-ke.cn/admin/upload/keniv.pdfIn PDF document text
- http://mas.vacations/wp-content/plugins/formcraft/file-upload/server/content/files/160d2026b4fa59---tewavatapigirad.pdfIn PDF document text
- https://miamivanservice.net/wp-content/plugins/formcraft/file-upload/server/content/files/160bb895963c73---ridol.pdfIn PDF document text
- http://pogotowienaukowe.com/Upload/file/98663778299.pdfIn PDF document text
- https://tese.in/ckfinder/userfiles/files/zusutudilodosuteluxivu.pdfIn PDF document text
- https://www.tonygssoulfood.com/wp-content/plugins/super-forms/uploads/php/files/08bde594cd95e5fb8c2dfa9a8acca193/babiv.pdfIn PDF document text
- http://sacoorhealth.pt/site/upload/file/45831148317.pdfIn PDF document text
- https://murderescape.com/wp-content/plugins/super-forms/uploads/php/files/21cb4bd78082668929d768620eb7d1d5/52335130268.pdfIn PDF document text
- https://www.mobytec.com.br/mobytec/wp-content/plugins/formcraft/file-upload/server/content/files/16087d23a9da03---mesesewomoxijepidital.pdfIn PDF document text
- http://allnatureint.com/userfiles/file/gajosinogasibanidezimoxa.pdfIn PDF document text
- https://cwlighting.com/wp-content/plugins/super-forms/uploads/php/files/de4996cb5cb71d72843dda67b2ee3f09/38329225260.pdfIn PDF document text
- https://flycam.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16088620d40c6b---61105202717.pdfIn PDF document text
- https://dbjadow.pl/attachments/file/60276253597.pdfIn PDF document text
- https://www.3dreamchurch.com/wp-content/plugins/super-forms/uploads/php/files/0f450883e8e32089fea2f3b3189de031/nikapotitadafizikobaj.pdfIn PDF document text
- http://bielwod.com/userfiles/file/jutijodiveduxez.pdfIn PDF document text
- http://grani-tonkogo-mira.ru/wp-content/plugins/super-forms/uploads/php/files/f3ed31daea22965ce6e2e6fc3e75a18a/tevilakikabo.pdfIn PDF document text
- https://www.infratechgroep.nl/wp-content/plugins/super-forms/uploads/php/files/c18cdfc64e73f9752b33dc648a3cf6be/42583379325.pdfIn PDF document text
- http://beloezoloto.ru/userfiles/file/lekevorivej.pdfIn PDF document text
- https://baileyelectrical.services/wp-content/plugins/super-forms/uploads/php/files/o3dvimp5bmecjelbdj6othuo9r/14996370167.pdfIn PDF document text
- http://omniatel.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609dcca76c216---77342771831.pdfIn PDF document text
- http://www.anieliasfx.com/uploads/textareas/file/26628847078.pdfIn PDF document text
- https://slavica.ru/wp-content/plugins/super-forms/uploads/php/files/a75e6a3818e625371de401e7df000ac3/suzixixewubumugewana.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=distributive+property+with+arraysPDF 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_off0000f017.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF017 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010829.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10829 | 17756 bytes |
SHA-256: d0aff1fb015f97c2bcd694fe24ce5c51ba94cd7078d540a1a08ba8a0a26c43ec |
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font_02_sfnt_off00013677.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13677 | 10704 bytes |
SHA-256: 394cc326b311b360d87d49bbac450cf3989743c5789576cbe6a94adaad50cdd2 |
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