MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of links, many of which point to compromised WordPress sites hosting PDF files. This structure is indicative of a link farm designed to manipulate search engine results or redirect 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 0.9956
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 http://www.thediethub.in/wp-content/plugins/formcraft/file-upload/server/content/files/16085092159c30---paxugafezipi.pdf
- http://furkansigorta.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160a6431b8bcbf---67860777978.pdf
- https://apexforestservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070aca4a5675---zuxibewena.pdf
- http://www.deep2001.com/images/library/File/83652945283.pdf
- http://festivaldeliteraturadepereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072f04ed4fb1---52818013447.pdf
- https://theemperorsoldclothes.co.uk/wp-content/plugins/super-forms/uploads/php/files/09ebq44bf3g3goc0s3luf262vt/8753428985.pdf
- http://mgmkt.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160928e457309c---lijadituvaxofuxagoxe.pdf
- http://trenermichal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160cd293b92f40---sijikofagivi.pdf
- https://bodwellassociates.com/wp-content/plugins/super-forms/uploads/php/files/0495c1ca3e475e5fa51280fb118e5f59/63330235073.pdf
- https://fiambreszav.com/wp-content/plugins/super-forms/uploads/php/files/f4cc2e9e3a41044c036c3f2218679f97/magaxo.pdf
- https://www.idahomedia.com/wp-content/plugins/super-forms/uploads/php/files/f6c9027cf30445e499295f6d5277ee93/rumesokezurepik.pdf
- https://panificiopasticceriabattaglia.it/file/71319339402.pdf
- http://archi1919.com/smlclub-files/file/68457053529.pdf
- https://acethamessecurity.co.uk/wp-content/plugins/super-forms/uploads/php/files/7e5202f430ee62c676b9838709d1a1cf/tojisom.pdf
- http://szentimresiklos.hu/upload/file/14421068433.pdf
- http://ranjitabiswas.com/userfiles/files/sitapof.pdf
- http://smolensk-bakaleya.ru/userfiles/file/5013119387.pdf
- http://admio.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1608bdcab02e3c---19724488927.pdf
- https://belgradenightlife.info/wp-content/plugins/super-forms/uploads/php/files/5mcgo55lijq7bto79hhlsf96u4/73229598.pdf
- http://apogeeconsultancy.com/upload/files/40358301147.pdf
- http://sam-global.info/files/file/66010842856.pdf
- http://rencontres-icare.org/userfiles/file/lopemunaw.pdf
- http://www.platformliften.info/wp-content/plugins/formcraft/file-upload/server/content/files/16076b7aa38ccd---gupodugudojubugexewu.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=how+many+numbers+are+divisible+by+3+between+100+and+1000
- 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_off0000e864.bin13fe3514fbd7bf7acc74d9e2357b3d2ed8357f7e3ad12a0ac563d61016debd25 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE864 | 17356 bytes |
font_01_sfnt_off000115c3.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x115C3 | 16792 bytes |
font_02_sfnt_off00012dda.binf31a3de444cfe32149a129f07261f2f9bc47309803c0d344c3fa82ffc50b3ed2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12DDA | 11252 bytes |
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