MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a link farm pointing to numerous compromised WordPress sites, which in turn host other PDF files. This structure is indicative of a phishing or malware distribution campaign, aiming to lure users to malicious content. The ML classifier and ClamAV detection strongly support the malicious nature of this file.
Machine Learning
- Nyx PDF Classifier malicious score 0.9957
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://cullinanconstruction.com/wp-content/plugins/super-forms/uploads/php/files/00kufisemndasmg3g4ejuqrp56/zosuxesujopapoborivupu.pdf
- https://www.sblending.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1609879ae5e06a---nuvixedozopudagagavivij.pdf
- http://bularz-auto.pl/images/userfiles/file/18069879723.pdf
- http://gdlianyu.com/uploadfiles/file/tezigiti.pdf
- https://ludifrance.fr/userfiles/file/17397694010.pdf
- http://metallpress.ru/files/38000718509.pdf
- http://atut-biuro.com/uploaded/file/jetajadaji.pdf
- http://getawaynewzealand.co.nz/wp-content/plugins/formcraft/file-upload/server/content/files/1606cd433a1b34---menusedaziwugoxukamo.pdf
- http://cohn-vossen.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ae216a3400f---kiwopusipekedovak.pdf
- http://mega.kz/media/upload/files/fexakomekibavezifa.pdf
- https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/ni5eisluj3eglcoui4vrubl4a5/48818804758.pdf
- http://akkoryazilim.com/userfiles/file/dipokajewuja.pdf
- http://www.hcibatiment.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160890d0180732---84159846256.pdf
- http://www.rlktechniek.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a2417ddcb48---jokotijefodiwitudala.pdf
- http://asiavent.com/UserFiles/file///39537835855.pdf
- http://www.orarestauratorisaf.it/wp-content/plugins/formcraft/file-upload/server/content/files/160a1efd725043---rexep.pdf
- https://advantagelic.com/singhania/downloads/file/49797553220.pdf
- https://www.lorenzofranzone.it/wp-content/plugins/super-forms/uploads/php/files/6485c508ba496f6b674ead45c0fb044f/nufatadulomirowiz.pdf
- http://stalmont.eu/userfiles/file/29574333454.pdf
- https://lokmangal.co.in/wp-content/plugins/super-forms/uploads/php/files/1eb97807baa81a5241695abcb537e03d/20421001363.pdf
- https://kis-u.com/page_data/file/20210628091650.pdf
- http://kystop.com/wp-content/plugins/super-forms/uploads/php/files/tpgdn50lvgvc3o53qhf3vnt1v6/pefarepugo.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=what+does+the+valley+of+ashes+represent+in+the+great+gatsby
- 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_off000115f5.bin20671d7cdc1baee038c1fdd21167db28bb92de1587b6ec6840e347c72f289a8d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x115F5 | 11092 bytes |
font_01_sfnt_off00012f5e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12F5E | 16792 bytes |
font_02_sfnt_off00014770.binbc802e24cb1624bf8171e3a7b7739a4d4efa82cfc467ef0ee24cdc753d06d2ce |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14770 | 17156 bytes |
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