MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains multiple URLs pointing to potentially compromised websites or disposable hosting, suggesting a link farm or phishing lure. The presence of PDF-specific heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' further supports this, indicating the document is designed to host or redirect to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
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://adbetelparaguay.com/wp-content/plugins/super-forms/uploads/php/files/a60f75336df61e2ac563c3eb25405219/sokuw.pdf
- http://stroynerud-sm.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160ba54d296ae0---55756160707.pdf
- https://yuss.it/file/5703035251.pdf
- http://xn--80akij1ajew.xn--p1ai/wp-content/plugins/formcraft/file-upload/server/content/files/160a0706b8d588---74616423271.pdf
- https://kabelkyaobuv.sk/editor_uploads/files/95004558164.pdf
- https://www.adler-leitishofen.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b218276a609---kagimuxiborowojeleta.pdf
- https://webmodeli.com/wp-content/plugins/formcraft/file-upload/server/content/files/160910090a681d---tazerutegagujizizifiwokub.pdf
- https://themodernla.com/wp-content/plugins/super-forms/uploads/php/files/b0300830b366c90ba2430536b3d3cf8a/gefipojeti.pdf
- http://shopcloud.cloud//ckfinder/userfiles/files/keropiw.pdf
- https://greshamgilessalon.com/wp-content/plugins/super-forms/uploads/php/files/9e0157efaa6cd72d3aa8b0785718491a/vomuvovusiguzetoxir.pdf
- http://work4shop.cz/userfiles/file/tirake.pdf
- http://jagodkaprzedszkole.pl/userfiles/file/bivexusupemipusutebodavu.pdf
- http://biplano.eu/userfiles/files/21670580674.pdf
- http://www.stratcareerservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606eda48b4510---67936977303.pdf
- http://datavincity.com/uploads/ckfinder/files/zoboradexalefenakerake.pdf
- https://www.criteriainvest.com.br/wp-content/plugins/super-forms/uploads/php/files/b9at50m5b2lncmib0rv62cocft/97997659424.pdf
- http://gorisum.net/fckeditor/upload_file/file/68538968352.pdf
- http://drinkandshrink.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160c10d4c98763---mujuju.pdf
- http://2478.ru/admin/ckfinder/userfiles/files/nalobefinufepitaxivapi.pdf
- http://nhs1980alumni.com/clients/878257/File/zuwigi.pdf
- https://briljant-maleri.se/UserFiles/files/86852966870.pdf
- http://xn--b1ahhafccpgkb2bxo.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/5db20ed6ed66ae62a26115cfbf650b61/74964885404.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=life+on+the+ice+journeys+3rd+grade+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_off0000bab2.bin683407ea596ea3556a8672c4b3fedb5cc6584a4ecfe8735360db57c6571dd709 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBAB2 | 11324 bytes |
font_01_sfnt_off0000d513.bin850fc2f47646d94e036bd69b99214c730d7dab162fd2bc35eade3e99ce5de40a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD513 | 16028 bytes |
font_02_sfnt_off0000fe53.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE53 | 16792 bytes |
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