MALICIOUS
204
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document exhibits multiple indicators of malicious intent, including being flagged by a machine learning classifier and ClamAV as a phishing trojan. It contains numerous embedded URLs, many pointing to compromised CMS upload directories or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of a 'password-protected archive' lure heuristic further indicates an attempt to trick users into downloading and decrypting a payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
Heuristics 8
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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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://philabc.ru/uplcv?utm_term=convertir+de+jpg+a+pdf+gratis+online
- https://binarbaidtrading.com/public_html/userfiles/file/88489206448.pdf
- https://avenue102.com/uploads/file/bunamalekatujugulap.pdf
- https://newat.ru/wp-content/plugins/super-forms/uploads/php/files/4410b48eeb4d05437189622ae8045e7a/35198369281.pdf
- http://jaluzipro.ru/public/userfiles/file/95732757219.pdf
- https://frasertechno.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b4b5bebf731---94199293128.pdf
- http://www.redactordecontenidos.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1609e9c18419ab---87495078679.pdf
- http://thecreditcrisis.net/clients/73966/File/dolisekuxasepavugoxubagul.pdf
- http://evaemlak.com/userfiles/file///43345252991.pdf
- http://www.prieteniitehnicii.ro/documente/file/29839268216.pdf
- http://quaretti.it/userfiles/files/88742694482.pdf
- http://szkolka-wiercioch.pl/files/file/woxipuridap.pdf
- https://koetec.com/home/~ptow/public_html/ckfinder/userfiles/files/75270735311.pdf
- https://www.scilights.com/wp-content/plugins/super-forms/uploads/php/files/37e3b72f75d08deca28fc26632b7b666/23697423302.pdf
- https://macauroommate.com/ckfinder/userfiles/files/vozim.pdf
- http://airsoft1.ro/files/file/53024440718.pdf
- https://pearproperties.in/userfiles/file/8398437047.pdf
- http://luxmeterthai.com/ckfinder/userfiles/files/takos.pdf
- https://monarchwinemerchants.com/wp-content/plugins/super-forms/uploads/php/files/78849c47d51e638cf49fac3a6bfd7dee/90680193411.pdf
- https://propbrains.com/wp-content/plugins/super-forms/uploads/php/files/l2f43vk1905o9gfep6k0h2h0j3/32474314002.pdf
- https://transport-vehicules.fr/userfiles/file/mivogizugo.pdf
- https://ecef-groupe.com/wp-content/plugins/super-forms/uploads/php/files/3kvqrjn6dq4ck4ulot4ffrct24/jufepasetot.pdf
- https://purebodycare.courses/wp-content/plugins/super-forms/uploads/php/files/grd3f2kq9vtg0j8psrjpcrthoo/disesur.pdf
- https://heritagecambodiatravel.com/userfiles/file/wijuparewuzikexu.pdf
- http://abogarestudio.com/userfiles/file/70880809468.pdf
- http://dohertylaw.net/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/46036302927.pdf
- http://ar-intl.net/wp-content/plugins/super-forms/uploads/php/files/9ab6gcptqtrsfii2t7cg5j4kb0/ruwuzi.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_off0000d81a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD81A | 16792 bytes |
font_01_sfnt_off0000f02c.bin60339f1a9e3f69a997a513b19cf9956a7507363894680a768055dc77d042382c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF02C | 18444 bytes |
font_02_sfnt_off00012023.bina0caf68c738532a8e75b1291c6245046ebc83c333f7771a7dd0294d3f81e63ed |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12023 | 10900 bytes |
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