MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains numerous external links, many of which point to compromised WordPress upload directories, suggesting a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent. The file's structure and numerous links point towards a link farm used to redirect users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
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://chcial.ru/uplcv?utm_term=liberty+university+scrip+dispositions
- https://x-software.cz/data/file/86431342128.pdf
- https://cherrychile.cl/cherry/uploads/contenido/files/migosorigeguk.pdf
- http://www.yourhealthyourchoice.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b9611c8440d---60646148422.pdf
- http://sehs67.com/clients/e/e0/e078d4d0076166a7bb489ca3b3a583ab/File/jenumuvetilupotan.pdf
- http://opalbiosciences.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a5ecabcdd2a---mexutogumanovubuxeloti.pdf
- https://acryl-bg.com/userfiles/file/bizobojemo.pdf
- https://www.andyselfstorage.co.uk/wp-content/plugins/super-forms/uploads/php/files/2some81ar9mr0noidsb0am5tjl/24219780131.pdf
- http://www.predoisiasociatii.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607c14fc3ce7b---1406297125.pdf
- https://completecollegestrategies.com/wp-content/plugins/super-forms/uploads/php/files/ed462a46b926fb3e458da7344bfe4814/97627092483.pdf
- http://euro520.net/userfiles/file/1625314076284158375.pdf
- https://museuminiaturesbesalu.com/files/79556058075.pdf
- https://globalazeri.az/wp-content/plugins/super-forms/uploads/php/files/jlvj8fk4pfc1nd6vg0075goau0/suxomajofokolow.pdf
- http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/bjjnfp0ujhgofm6jar8rsn4vk2/fuzuguxogibikegolole.pdf
- https://broadstripe.com/wp-content/plugins/super-forms/uploads/php/files/e3bb4defd711847720cfa93acf52b507/44913200518.pdf
- https://www.travelticket.com.au/wp-content/plugins/super-forms/uploads/php/files/a3qdo8l94l0djnpg3unrmg6016/wosaragipabimusezez.pdf
- http://www.catalogodecineargentino.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606fd3bfadeba---vomabuwasojadexodapa.pdf
- http://www.hollyskauaicondo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084e67a00088---68416790587.pdf
- http://www.eflox.net/wp-content/plugins/formcraft/file-upload/server/content/files/160b968d34c830---tewaribaz.pdf
- https://expresstestingatl.com/wp-content/plugins/super-forms/uploads/php/files/64788fce172ac98a1e818f5749f2b8f7/zalagujes.pdf
- http://bmhs1963.com/clients/7/72/7286fd37811b7a5dece6e69924e4d5ab/File/92421972465.pdf
- https://rfcorporation.net/wp-content/plugins/super-forms/uploads/php/files/07efb2eeb145ae837a1462a103ff796c/kuxaxekejibif.pdf
- http://www.sunargrup.com.tr/wp-content/plugins/super-forms/uploads/php/files/e83k5svocuqqfupljd7na544g3/gojolojolefugirogipovap.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_off0000c7e3.binaacc77974ea3f91e0d4dda027cbd5922f356366409afbf8e856979e042919844 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC7E3 | 10676 bytes |
font_01_sfnt_off0000e056.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE056 | 16792 bytes |
font_02_sfnt_off0000f868.bin035767d766bb822d85fb0a2e368c0c3c025f3cb51f0efc0e78776a86937c7a84 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF868 | 16136 bytes |
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