MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous URLs, many pointing to compromised CMS uploads or disposable hosting, suggesting it functions as a link farm to distribute malicious content. The document body is unreadable, but the heuristic firings strongly indicate a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://xn--aknmedical-yub.com/uploads/file/fusukiz.pdf In PDF document text
- https://independentmusicleague.com/wp-content/plugins/super-forms/uploads/php/files/904fd3614bce5fb89a20a2d8683325b5/35699385537.pdfIn PDF document text
- http://nceed.kr/pds/userfiles/files/20211360876.pdfIn PDF document text
- http://www.colormotion.cz/UserFiles/file/67912370997.pdfIn PDF document text
- https://mundolibre.cl/uploads/userfiles/files/43499373661.pdfIn PDF document text
- https://castel.ro/userfiles/file/77928428341.pdfIn PDF document text
- http://ventilyatsia-v-sochi.ru/ckfinder/userfiles/files/fexamojowuxajovegu.pdfIn PDF document text
- http://ilkjv.com/Images/Media/files/nosolotetukom.pdfIn PDF document text
- http://ls12368.com/userfiles/file/zasolodoparewemebulaz.pdfIn PDF document text
- http://phongthuyphatloc.com/luutru/files/jepanedodemexowup.pdfIn PDF document text
- http://citra.cl/userfiles/file/rorexufusiwonipuda.pdfIn PDF document text
- http://handinks.com/ckfinder/images_store/files/52274532452.pdfIn PDF document text
- https://siliconautomation.com/userfiles/file/73064570446.pdfIn PDF document text
- https://edubox.mn/uploads/users/0/files/renezagurebaz.pdfIn PDF document text
- http://rusiuojigalvoji.lt/wp-content/plugins/formcraft/file-upload/server/content/files/161366201a8966---dewezasibadugezokavubiwej.pdfIn PDF document text
- http://timebank.ru/sites/default/files/photos/pagefile/49109055756.pdfIn PDF document text
- https://alhurwallpaper.com/Files/files/88078724053.pdfIn PDF document text
- https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133653c72828---39269662016.pdfIn PDF document text
- https://www.nbc.com.vn/ckfinder/userfiles/files/25175305239.pdfIn PDF document text
- https://metricgroup.it/uploads/file/wudejokuvamawo.pdfIn PDF document text
- http://kapalishakti.com/ckfinder/userfiles/files/momilozo.pdfIn PDF document text
- http://zabbeleecooking.com/ckfinder/userfiles/files/mopeliroru.pdfIn PDF document text
- http://hanleyresources.com/images/82086482028.pdfIn PDF document text
- https://ag-concept.ru/wp-content/plugins/super-forms/uploads/php/files/9abd9088cdda790ba5498096a526b088/nabif.pdfIn PDF document text
- https://creationstationdance.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139e52122b13---turil.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=door+id+unturnedPDF 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_off0000bd22.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBD22 | 17660 bytes |
SHA-256: e03af6bf4aadfa901f49d9654d7f022a098e366c232059538faa3e6f2a9c8408 |
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font_01_sfnt_off0000eb61.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB61 | 9964 bytes |
SHA-256: a8c288ee4d27a4ddaf1403179ae7d5645913f0679937816cb758043b134d1100 |
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font_02_sfnt_off00010187.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10187 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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