MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file contains embedded JavaScript, which is often used to redirect users to malicious websites. The heuristics indicate it functions as a link farm, with many URLs hosted on compromised or disposable domains, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9887
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 https://laborke.ru/uplcv?utm_term=the+type+of+spring+used+to+absorb+and+release+energy+in+mechanical+watches+is
- http://sobsai.com/ckfinder/userfiles/files/88967178991.pdf
- https://accesoriosalmayor.com/images/userfiles/file/15950838069.pdf
- http://deurwater.com/wp-content/plugins/formcraft/file-upload/server/content/files/160812f56c6f91---27174235685.pdf
- https://outsourcedbackoffice.co.uk/wp-content/plugins/super-forms/uploads/php/files/7f8f964ea03b58edb343a601473b96f9/guzomusepesidap.pdf
- http://grappin-annat-como.com/userfiles/grappin-annat-como.com/file/16655859780.pdf
- http://xn----8sbpvg0afdbe.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/0k1m82mgoj6bvado4n7jfcu3g5/vonedijatosofezivudu.pdf
- http://gallery4walls.com/upload/editer/file/237218502.pdf
- https://webmodeli.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bdff137066b---98541810938.pdf
- https://www.burit.net/wp-content/plugins/formcraft/file-upload/server/content/files/160db62c64d195---15146807892.pdf
- https://bobecoingatlan.com/uploads/editor/file/domisegufexumo.pdf
- http://www.petercar0937494634.com/upload/img/files/45377405085.pdf
- http://aaaexpressheating.com/userfiles/file/72702061437.pdf
- https://mavismanagement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e394ca4864---tosegumog.pdf
- https://mindweave.co.uk/wp-content/plugins/super-forms/uploads/php/files/bmsa8eutm3d47djd6ccu9kr0db/93414198504.pdf
- http://for-rent-aalst.com/wp-content/plugins/formcraft/file-upload/server/content/files/160dc0e9295a85---jujajijumito.pdf
- http://coss-wynn-reunion.com/clients/d/db/dbe3622004495b304d8703879a486b7d/File/toguvuviruwasigejiluwa.pdf
- http://all-vehicle.net/js/upload/files/wamepitade.pdf
- http://teraval.cz/res/file/50108844551.pdf
- http://dekoblickfang.de/userfiles/file/lakewabade.pdf
- http://easternsheep.by/app/upload/file/48232724545.pdf
- http://andreagarciam.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9fb886ddc4---23974836186.pdf
- https://sv-fin.ru/wp-content/plugins/super-forms/uploads/php/files/0429ee340458c9e71cf90d39cea50f85/41612802425.pdf
- http://www.kreasoft.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160726787cd463---8330053244.pdf
- https://narimasu-chintai.net/jcfiles/file/zeremabukofufazujijit.pdf
- http://boulderdivorcelaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160730f9f8f39b---fizigex.pdf
- 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00010bf8.bin9ea9197b6a75c7fe67a727ea228f5add925cef9a7182c4c37535d81b948c8910 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10BF8 | 16108 bytes |
font_01_sfnt_off00012129.bind7bf842afd518836dbf6e54cb3003802700f6a7c4329063856592d4e8416c7f0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12129 | 18496 bytes |
font_02_sfnt_off00015204.bindc96603bd8a827750ed730e7442a1733174900c895910e84d1b2b37e76529c0e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15204 | 11468 bytes |
font_03_sfnt_off00016ca5.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16CA5 | 16792 bytes |
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