MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is a PDF containing numerous links to websites hosted on compromised CMS platforms, identified by heuristics like 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' and 'PDF_SEO_DISPOSABLE_LINK_FARM'. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the nature of the links suggests a phishing or malware distribution campaign, likely initiated via spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9952
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://www.formwork.co.uk/wp-content/plugins/super-forms/uploads/php/files/apanbg43vla9d4ugtrttgr179h/rulizevir.pdf
- https://afriqueitnews.com/wp-content/plugins/super-forms/uploads/php/files/56ca8f492ac0d840bb95900acb7ee057/2194369774.pdf
- https://www.litesourcenc.com/wp-content/plugins/super-forms/uploads/php/files/965dd86e98542c7c52a1652a907f806c/petovevoxuri.pdf
- http://shinies.ru/img/lib/file/22361543205.pdf
- http://www.consorcio.edu.pe/wp-content/plugins/formcraft/file-upload/server/content/files/16088333d503d5---ririfiponidilexud.pdf
- https://www.dekleinewerf.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160cf3361d3ea8---vazefekipizaras.pdf
- https://baongochoa.com/upload/file/nixufomuwujedud.pdf
- http://aircond.md/upload_fck/file/42117878579.pdf
- http://biurod9.pl/public/userfiles/file/gedekezawujiluwef.pdf
- http://dirabrealtors.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ad8ad004a6---kemutejutewidoweputudad.pdf
- http://dom-nenilovo.ru/wp-content/plugins/super-forms/uploads/php/files/7659cbf64bef7d943e09da9f493799be/51770053535.pdf
- http://talleresjpg.es/img/file/gepozubodat.pdf
- https://esteticarcare.com/wp-content/plugins/super-forms/uploads/php/files/bed3cfa99b4406588b79dee92127277f/57264261551.pdf
- https://studiogreenwich.ru/wp-content/plugins/super-forms/uploads/php/files/9cb12a9b6f1c21c76869763d1eebef50/domezulidobewujama.pdf
- http://www.gaviprintpack.com/wp-content/plugins/formcraft/file-upload/server/content/files/160976f60055ca---61608912604.pdf
- http://randoquad72.fr/userfiles/file/bujutino.pdf
- https://regenerativetherapyforpain.com/wp-content/plugins/super-forms/uploads/php/files/87e50ca30795e2790040372ad8252a15/21036954354.pdf
- https://graffitipaintstudio.com/wp-content/plugins/super-forms/uploads/php/files/f007cd4b31f52a25eeb793347706d584/16127755252.pdf
- https://www.myjamaicais.com/wp-content/plugins/super-forms/uploads/php/files/369bd51d3be1e9ea58ed71c6ef9c232a/jadabogi.pdf
- https://landlorddebtadvisory.com/wp-content/plugins/super-forms/uploads/php/files/5cnirns8v2j47loj71l0mhh1n4/bunipiziwim.pdf
- http://argentum.com/wp-content/plugins/super-forms/uploads/php/files/hkdg063t5nogjkrtkkqv30a0fl/79623025857.pdf
- https://www.mybizwebsites.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c7849a3b895---paposepavuwalaseneka.pdf
- https://travels-ukraine.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac405aef4aa---makupelurof.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=rna+and+protein+synthesis+answers+gizmo
- 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_off0000eb76.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB76 | 16792 bytes |
font_01_sfnt_off00010388.binc83f28ae6e6365bc87a3b66ff7567fdb22ad48614a7af919932dee6b90302fef |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10388 | 17012 bytes |
font_02_sfnt_off00012f9f.binb3ad8a2b9254a7870d57f16a2352ebb18d42587636987957a2f9e7aab9718f45 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12F9F | 11096 bytes |
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