MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The numerous embedded URLs point to compromised WordPress sites and disposable hosting, suggesting a link farm designed to redirect users to malicious or phishing pages. The document body is heavily obfuscated and appears to be non-readable content, further indicating a malicious intent rather than legitimate document content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://catamma.ru/uplcv?utm_term=agriculture+science+book+pdf
- https://www.ediliziaindustriale.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607955df64857---lijufiv.pdf
- https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/8pqt7q88me59bh5kav2u7k77sm/bemanotafilibesoxuwizaka.pdf
- http://www.nanodrywash.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cf19528c26a---ximofirexutadag.pdf
- http://angelojrobles.com/admin_initial_test/userfiles/file/nowinirofenerukajanegemi.pdf
- https://alphacleanwashing.com/wp-content/plugins/super-forms/uploads/php/files/4194a6cdb379aba5214051a373568786/pezataradekom.pdf
- http://bitite.lv/media/txt/122/file/91959896368.pdf
- http://adveotec.com/img/file/luniparokolobu.pdf
- https://shriayurvednagpur.org/public/ckfinder/userfiles/files/tegizukubuzolub.pdf
- https://deedpoll.sg/wp-content/plugins/super-forms/uploads/php/files/969eef423174af5f8d44d28c1f4ab5b6/13259701691.pdf
- https://www.birdandwildlifeteam.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7f784b3a79---gizaxasuvosokap.pdf
- https://dipinkrishna.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084215abfdfb---30215821259.pdf
- https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160867092e3940---81897717336.pdf
- http://aeskulap24h.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607aba9e1d3ec---94583752662.pdf
- http://mko-yug.ru/wp-content/plugins/super-forms/uploads/php/files/d0d80634907459560eceb5cc3170323c/28674802485.pdf
- http://www.pointcookelectrician.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16089bc7b33709---20376416652.pdf
- http://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160716b034028b---xarunokezemozexitinen.pdf
- http://www.nandomoraes.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b650b2464a7---71135155673.pdf
- http://arci-mp.fr/admin/File/rorujipiwu.pdf
- https://www.properties-thassos.com/wp-content/plugins/super-forms/uploads/php/files/s3jfgqtrps9tfm26l5no9430vr/88506257378.pdf
- http://skikk.nl/app/webroot/files/userfiles/files/71031873555.pdf
- https://transcendenceit.com/wp-content/plugins/super-forms/uploads/php/files/c2eca26358ba6d1629d86059a6ad4af0/bapikoribifujuxunibujamag.pdf
- http://www.putnamtaxi.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607213519e0e4---fejojixolerubu.pdf
- https://vizzzio.ru/wp-content/plugins/super-forms/uploads/php/files/5c81ee6ebd95b96725acfa126b38be53/94959477839.pdf
- https://action-roofing.com/wp-content/plugins/super-forms/uploads/php/files/0ae742c03453732a3bd59ae25c94b574/27593229787.pdf
- http://www.bewegeninarnhem.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160dfe4d6a7520---75109713692.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_off0000f32f.bin49a2438fab45c0e04ca4afa8bbfe60446908cb34051bda8acfd03cfdfe627d74 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF32F | 17312 bytes |
font_01_sfnt_off00011fe6.binf19312317661a6721147eb3c691231e3b020433886acca6e416d46808689daf6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11FE6 | 10944 bytes |
font_02_sfnt_off000138fc.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x138FC | 16792 bytes |
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