MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1553.004 Mark-of-the-Web Bypass
The file is a PDF document that has been flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The document body is heavily obfuscated, but heuristics indicate it contains a link farm pointing to potentially compromised websites and includes instructions to disable security software. This suggests an attempt to bypass security measures and potentially deliver a phishing payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
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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Security software disable instruction high SE_SECURITY_BYPASSDocument instructs the user to disable antivirus or security software — unusual for ordinary documents and high-risk in an unsolicited file
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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://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/d53nc7jcncksn0gendap6educi/viwigugawaw.pdf
- http://pappteam.hu/userfiles/file/75041986531.pdf
- http://aviafond.ru/userfiles/file/vulokowatokufavalodis.pdf
- http://ecoevopublisher.com/files/upfiles/file/denojajes.pdf
- https://pisangmanis.com/contents/files/xotafofeperapoduk.pdf
- http://doradcyprawni.com/images/pliki/rezagamigemazufetobuw.pdf
- http://halongwave.com/userfiles/file/kogawilar.pdf
- http://kwik-it.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161394747cf89c---jikikito.pdf
- https://alternativecarrepair.com/userfiles/file/dagixosuvagifuzipugozulut.pdf
- http://kapalishakti.com/ckfinder/userfiles/files/sexisirifogaxikezaf.pdf
- http://ediliziaunoaventi.com/userfiles/files/60544112412.pdf
- http://justsayhi365.com/uploads/file/nazosajagufotabad.pdf
- https://limsurdua.com/contents/files/5019616258.pdf
- https://vanchuyenduongsat.vn/upload/files/gutuwez.pdf
- https://ladida.asia/sporlegen/administrator/imagetempfile/mejuxofoxivokivis.pdf
- http://kbinteriery.cz/userfiles/file/wowokemizag.pdf
- http://halmar.info/userfiles/file/tikunegerinigoboxusu.pdf
- https://kemxoithanhhang.vn/app/webroot/files/images/pages/files/jotudi.pdf
- https://pilot-nav.com/ckfinder/userfiles/files/40511595448.pdf
- https://behbehaniprojects.com/uploads/files/68276133297.pdf
- https://kimcert.net/E/file/99215661245.pdf
- http://novaserv.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ec533b7588---31651556747.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=the+was+a+problem+while+parsing+the+package
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d3dd.binef3506994ae1a1ac4c26766a6d3914f7231440dbe7c7617c2c2cc0d27de2e551 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD3DD | 11104 bytes |
font_01_sfnt_off0000ed70.bin0114ead9b03527d4b4564e8c36d604ec6bcad6171c18dc22c10e38843fe0f4f0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED70 | 17396 bytes |
font_02_sfnt_off000119c5.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x119C5 | 16792 bytes |
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