MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier indicating maliciousness. It contains a large number of embedded URLs, many pointing to compromised WordPress sites, suggesting a link farm designed to redirect users to malicious content. The presence of external URIs and link farms indicates an attempt to lead the user to a phishing or malware distribution site, aligning with spearphishing attachment tactics.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
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://krisoc.ru/uplcv?utm_term=how+to+trade+chick+in+adopt+me PDF link annotation
- https://www.davinci.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1614804dd63d82---jujolevet.pdfIn PDF document text
- https://www.ventisilva.com.br/ckfinder/userfiles/files/99768613348.pdfIn PDF document text
- http://frederickfollows.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1612fee43ea4dd---towilajupasifiru.pdfIn PDF document text
- https://dialogueinpraxis.net/files/docs/lumuluvawipuz.pdfIn PDF document text
- http://www.halpellet.hu/userfiles/files/pifiwudalapuluvozukamafot.pdfIn PDF document text
- http://citadelcaralarms.com/userfiles/file/xodemakex.pdfIn PDF document text
- https://ajansnigde.com/resimler/files/selipoduni.pdfIn PDF document text
- http://moto-bike.pl/userfiles/file/polugesezuvadokavu.pdfIn PDF document text
- http://dietetyka-24.pl/images/files/83170077683.pdfIn PDF document text
- http://giasuminhtam.com/Images_upload/files/92856008351.pdfIn PDF document text
- https://www.baileysmilk.com/wp-content/plugins/super-forms/uploads/php/files/4c65156d703c2acaab0317f597cadccf/79711818412.pdfIn PDF document text
- https://pemaboutiquehotel.com/assets/userfiles/files/44622065629.pdfIn PDF document text
- https://www.sibirprokat.ru/ckfinder/userfiles/files/69306887689.pdfIn PDF document text
- https://sv-fin.ru/wp-content/plugins/super-forms/uploads/php/files/a2372d66c6342dbf76fe3c08077900cc/zitenaludarelukerimiga.pdfIn PDF document text
- http://internet-trade.eu/UserFiles/file/8314639623.pdfIn PDF document text
- http://levakov132.ru/userfiles/file/tunipibip.pdfIn PDF document text
- http://jlsxjy.com/right/UploadFile/file///2021090908214273499.pdfIn PDF document text
- http://www.vikingmaterials.com/img/60432432714.pdfIn PDF document text
- http://rosabaum.de/web/editor/files/30602674197.pdfIn PDF document text
- http://sdes.in/uploads/53404326952.pdfIn PDF document text
- http://ahxxzx.com/userfiles/202109/file/mabaxopadebomeja.pdfIn PDF document text
- http://houselandia.ru/files/wubemuduruxekuzonu.pdfIn PDF document text
- 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_off0000d1cd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD1CD | 10732 bytes |
SHA-256: 4438fda2f548b9367ee4f2f8b1ab08cc45da397ad13e082bd532ea1b12370653 |
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font_01_sfnt_off0000ea41.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA41 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010253.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10253 | 18320 bytes |
SHA-256: e63f08ea70fe71d421670104ca53279359230df79aab8d93433b7cac874001df |
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