MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains embedded JavaScript and a significant number of external URIs, many of which point to compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users. The primary function appears to be distributing malicious content or facilitating phishing attacks through these redirects.
Machine Learning
- Nyx PDF Classifier malicious score 0.9912
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://alumcity.ru/userfiles/file/60589825901.pdf In PDF document text
- https://abofahed.com/userfiles/file/75083716553.pdfIn PDF document text
- https://www.tamilsaga.com/ckfinder/userfiles/files/84497459100.pdfIn PDF document text
- https://delcinfo.ru/img/files/files/wonerupozanotuzul.pdfIn PDF document text
- http://animalscipublisher.com/files/upfiles/file/15245218124.pdfIn PDF document text
- https://drishtinetcom.in/FCKeditor/file/lomek.pdfIn PDF document text
- https://goez3.com/10005001208290177/ckfinder/userfiles/files/mewajalilezekepinotafovoz.pdfIn PDF document text
- https://weborder.cloud/userfiles/file///noxaginu.pdfIn PDF document text
- http://hkt-optics.com/hkt/images/userfiles/file/5159830356.pdfIn PDF document text
- https://livresdarts.com/ckfinder/userfiles/files/76661179674.pdfIn PDF document text
- http://all-vehicle.net/js/upload/files/bufulexazijusudalew.pdfIn PDF document text
- http://tvoirostov.ru/ckfinder/userfiles/files/buvenorib.pdfIn PDF document text
- https://advancedcheckcashadvance.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607cd0f16ab51---tesikine.pdfIn PDF document text
- http://earthtalismanjewelry.com/clients/b/b2/b27d4d76c51cd35ccef873a204118430/File/78126983154.pdfIn PDF document text
- http://jiendurancecoaching.com/ckfinder/userfiles/files/65573334444.pdfIn PDF document text
- http://2ds-creations.fr/userfiles/file/6221082916.pdfIn PDF document text
- https://www.lesson-online.org/wp-content/plugins/super-forms/uploads/php/files/h98lcqhbetcer3k7628od94or2/mojabapelamusitenove.pdfIn PDF document text
- http://neonatal-surgery.ru/userfiles/files/35025789070.pdfIn PDF document text
- http://dom-nenilovo.ru/wp-content/plugins/super-forms/uploads/php/files/4d48c985779e8f3cdc913df4f1230c11/65845005348.pdfIn PDF document text
- https://samarpanbharat.org/trila/userfiles/file/69791429739.pdfIn PDF document text
- https://sk-developers.com/wp-content/plugins/formcraft/file-upload/server/content/files/16116bac00f452---25395634077.pdfIn PDF document text
- http://hayatteknoloji.com/webimage/file/kowivuxemekasogogukuxup.pdfIn PDF document text
- https://sardavetri.it/userfiles/file/77762121843.pdfIn PDF document text
- http://angarakshaksecurity.com/userfiles/file/97053783971.pdfIn PDF document text
- https://leunamgroup.com/wp-content/plugins/super-forms/uploads/php/files/34c1ba114b5ac8f4cd52e1bb53f3a9d6/64215197345.pdfIn PDF document text
- http://murphysbeads.com/clients/54316/File/mokekuwolopi.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=fire+hose+coupling+types+pdfPDF 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_off0000e41e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE41E | 10928 bytes |
SHA-256: 5c39ef6c17c74f88e452e88498796294dd0929eb21428220b9efe642ed9ece46 |
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font_01_sfnt_off0000fd30.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD30 | 18424 bytes |
SHA-256: ca0f9e66635d2bb0dc864af3eff8673d1ce63ffa3e96804ee7aba382780f3e4b |
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font_02_sfnt_off00012d6a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12D6A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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