MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external URIs and embedded links pointing to various domains, suggesting it functions as a link farm designed to redirect users to potentially compromised websites or phishing pages. The presence of PDF-specific heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' further supports this, indicating the document is structured to host a large number of links on disposable or compromised hosting. No scripts were extracted from this sample.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
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://synerhu.ru/uplcv?utm_term=the+giraffe+and+the+pelly+and+me+pdf PDF link annotation
- https://asthasupermarket.com/userfiles/file/totap.pdfIn PDF document text
- https://veglifekc.org/wp-content/plugins/super-forms/uploads/php/files//fusemuwovasinobi.pdfIn PDF document text
- https://www.geosuiteonline.de/wp-content/plugins/formcraft/file-upload/server/content/files/160d5b2f9d64c1---piwuxofonutole.pdfIn PDF document text
- http://leap-egypt.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a649075540b---73456646259.pdfIn PDF document text
- http://hzdsbg.com/uploadfile/1620973877.pdfIn PDF document text
- https://www.booster-p.com/wp-content/plugins/formcraft/file-upload/server/content/files/160df96289210f---44604271272.pdfIn PDF document text
- https://szekszardportal.hu/userfiles/file/zezifoko.pdfIn PDF document text
- http://msiutilities.biz/documents/livajosixarevejeni.pdfIn PDF document text
- https://inchirieriavioane.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607215b7128c9---74292088166.pdfIn PDF document text
- http://travelshops.pl/userfiles/file/44834115210.pdfIn PDF document text
- http://dichvu12h.net/userfiles/file/zixoz.pdfIn PDF document text
- https://ceilford.org/wp-content/plugins/super-forms/uploads/php/files/b8acec3ae185347d604b30b4ac72bb11/bagebokuviduzuxuxebawixab.pdfIn PDF document text
- https://laneopx.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a0452179672---bofajogosak.pdfIn PDF document text
- http://veronicanealhome.com/wp-content/plugins/formcraft/file-upload/server/content/files/2/1609808bdd6d3e---kolaberanowegogomebafute.pdfIn PDF document text
- https://cls-toronto.com/wp-content/plugins/super-forms/uploads/php/files/2f3fe15b5409d30c9e17ffa29e253309/62278068963.pdfIn PDF document text
- http://www.everhouse.lt/wp-content/plugins/formcraft/file-upload/server/content/files/160787f251bfc0---posamarumitinazugof.pdfIn PDF document text
- http://xahscw.com/userfiles/file/putaviwirifabefonafi.pdfIn PDF document text
- https://standardpromotion.com/images/upload/userfiles/files/nudivapegelano.pdfIn PDF document text
- http://objetivovender.com/wp-content/plugins/formcraft/file-upload/server/content/files/160859886a55de---44873888717.pdfIn PDF document text
- http://stylist.in.ua/wp-content/plugins/formcraft/file-upload/server/content/files/160945edd91107---lunegevexenetetuxubi.pdfIn PDF document text
- http://www.next-conseil.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16078f32350d44---45071311739.pdfIn PDF document text
- https://sv-fin.ru/wp-content/plugins/super-forms/uploads/php/files/ce49a6f30c7d534b7880f6a54a33f10b/sodewug.pdfIn PDF document text
- http://bubblesoflove.net/wp-content/plugins/formcraft/file-upload/server/content/files/16073c9e90d9bd---poruj.pdfIn PDF document text
- https://vizzzio.ru/wp-content/plugins/super-forms/uploads/php/files/4cbf2821478f53cb5727f086a5e7edf2/56912060224.pdfIn PDF document text
- https://wecafephuket.com/wp-content/plugins/super-forms/uploads/php/files/hjnhnflkattrrfqeurgpnhjs5b/kisifedezudok.pdfIn PDF document text
- http://sns.hu/_user/file/69164451129.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_off0000f4ee.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4EE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010d00.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D00 | 18176 bytes |
SHA-256: 4e39a011dd32fdf4f31b50966163512cca46ea482ff409f26aa318740799be1e |
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font_02_sfnt_off00013c03.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13C03 | 10732 bytes |
SHA-256: 764a9327f5c9016d5462d1c29c94eadba30fdb4905bf0a21a5cb3fb81ebf4e78 |
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