MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection for a phishing trojan. It contains numerous links pointing to compromised WordPress upload directories and disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 0.9952
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://crysiq.ru/uplcv?utm_term=unforeseen+circumstances+meaning+in+tamil
- http://fly.no1-yes.com/userfiles/file/80429786447.pdf
- https://robertmatzuzi-massagetherapist.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160811d01b2ea5---80491927115.pdf
- http://for-rent-leuven.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c36aea5d0df---runowopifetogezogigipu.pdf
- https://www.denisonlandscaping.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b04c54cfc9e---44772287804.pdf
- http://clear-es.net/yamituki-n/uploads/files/jatug.pdf
- http://aeronautike.com/userfiles/file/18472684762.pdf
- https://cvenhancer.com/wp-content/plugins/super-forms/uploads/php/files/c1a6b01ba4d23abc1b16a977c0178314/81532519205.pdf
- https://artenika.pl/fck/file/98957209169.pdf
- https://susta.vn/userfiles/file/92464924812.pdf
- https://pluckywize.com/wp-content/plugins/formcraft/file-upload/server/content/files/160800539e31af---33996256983.pdf
- https://atolab.it/wp-content/plugins/super-forms/uploads/php/files/9a731a582f6311ba1fac8d77cb4125b7/zanag.pdf
- https://www.emma-solutions.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ac1049bac05---zamorogitelezen.pdf
- http://www.qookspot.kitchen/wp-content/plugins/formcraft/file-upload/server/content/files/16092557a9c963---zowefajo.pdf
- http://www.gcsystem.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160903189c62ce---tojazawo.pdf
- https://drahmetbostanci.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075c1457ee4c---bisekaxizuresopi.pdf
- https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/jaqt8aod429u453kkogd93ph0t/lunekatenumetosasof.pdf
- https://www.lesson-online.org/wp-content/plugins/super-forms/uploads/php/files/ideatrcciqi2r1qunsh0qvism3/64960977697.pdf
- http://le-lemniscus-incandescent.fr/ckeditor/upload/files/73319894942.pdf
- http://alpanelektrik.com/depo/sayfaresim/file/81942684486.pdf
- https://2greenchicks.com/wp-content/plugins/super-forms/uploads/php/files/03f039165c37f94065d933fa86ab92e3/69840815232.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d5f2adb42a4---deweko.pdf
- http://videoacceso.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f2d5fb32b9---difumikawakavusot.pdf
- http://x-site.by/upload/editor/files/pokofinofik.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f477.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF477 | 16792 bytes |
font_01_sfnt_off00010c8e.bin375f1e723d18996528a79b25a7b41173ce4d30087d5ef57e658ca9ae330f882a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C8E | 10784 bytes |
font_02_sfnt_off00012564.bin5d5c484f31055b0cf9c3a47c1ee27c5e02931634c93c59668c1ee8f84ca1015a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12564 | 17740 bytes |
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