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. It contains numerous links to external websites, many hosted on compromised WordPress installations or disposable domains, suggesting a link farm or phishing lure. The presence of PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics indicates a pattern of using such sites to distribute malicious content or redirect users. While no scripts were explicitly extracted, the nature of the links and the overall detection suggests it's likely a spearphishing attachment designed to lead users to malicious sites.
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://inwebjor.ru/uplcv?utm_term=chris+daughtry+tickets PDF link annotation
- http://oreade-breche.fr/userfiles/file/befip.pdfIn PDF document text
- https://wavemed.it/wp-content/plugins/super-forms/uploads/php/files/87bad13249dae670c202c52611756333/3156879076.pdfIn PDF document text
- http://www.photobreak.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160aacb17d0500---vaxapomemosazetepi.pdfIn PDF document text
- http://fabrykakonwersji.pl/wp-content/plugins/super-forms/uploads/php/files/0c5a58c577f53d18002e3c0d60b09042/lejexukitopigabiripazuf.pdfIn PDF document text
- https://nutricionintravenosa.com/wp-content/plugins/super-forms/uploads/php/files/a3fa8299b6d1a6d56ddbc4b512863def/85809486202.pdfIn PDF document text
- http://szkolaprzybranowo.pl/ckfinder/userfiles/files/78658412358.pdfIn PDF document text
- https://flylights.pl/wp-content/plugins/super-forms/uploads/php/files/mnthadjk162ava334pgaflklao/3633897614.pdfIn PDF document text
- http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/16081b2fea15a6---88393613373.pdfIn PDF document text
- http://makaeximworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c9c434d99b5---bejezatijibisipetorejuk.pdfIn PDF document text
- http://alpha-cp.com/userfiles/file/77660968352.pdfIn PDF document text
- http://www.medicalalliedtraining.com/wp-content/plugins/formcraft/file-upload/server/content/files/160833afadc579---getozapexow.pdfIn PDF document text
- http://antwerp-rentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a0f504cf9d1---xezisidapidovafixedo.pdfIn PDF document text
- http://amctop.com/board_data/editor_img/file/202105290334.pdfIn PDF document text
- https://summit-christian-academy.net/scauserfiles/files/veluvixugogobolanezigup.pdfIn PDF document text
- http://ljhalls.com/wp-content/plugins/super-forms/uploads/php/files/a354d658a079bd58ea66a60c7954f1b5/43193643222.pdfIn PDF document text
- http://www.advancedevents.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160bb0abb6c2d1---dufixaxef.pdfIn PDF document text
- http://ahxxzx.com/userfiles/202105/file/wadufogoguvafefeparu.pdfIn PDF document text
- https://mygoaltv.com/ipp/images/uploads/files/9072914698.pdfIn PDF document text
- https://singaporeroadshow.com/wp-content/plugins/super-forms/uploads/php/files/a1608cd9877007efadf27299bb670214/94651878160.pdfIn PDF document text
- https://www.businesswatchguardingservices.co.uk/wp-content/plugins/super-forms/uploads/php/files/q14qu64kk200f4gl1r2qbcjdmi/83771490948.pdfIn PDF document text
- https://www.electriclighting.com/wp-content/plugins/super-forms/uploads/php/files/ad3b3c7020d2aa705ade9c4c19a8bf4e/54996286739.pdfIn PDF document text
- http://www.viksexteriors.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b53162e76e---xovonilananuna.pdfIn PDF document text
- https://tidaksusah.com/contents//files/savibagulen.pdfIn PDF document text
- https://cald-lighting.com/wp-content/plugins/super-forms/uploads/php/files/05c59058a1a78e47216eb13dae43b278/50619325592.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0001011b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1011B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00011932.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11932 | 10716 bytes |
SHA-256: abdd05711b585d11dce90538f88e864668fdcb0fbcf394b999b7689ca08c2411 |
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font_02_sfnt_off000131d1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x131D1 | 18632 bytes |
SHA-256: c559a7b886d92c88d1493b830a3443eea155e6080e1320a6720fe274d7271e29 |
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