MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous links, many pointing to compromised WordPress upload storage and disposable hosting, suggesting a link farm designed to redirect users. The PDF's structure and the presence of multiple external URIs strongly suggest it's used as a lure to lead victims to malicious sites, likely for phishing or to download further payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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://chithanhplastics.com/uploads/userfiles/file/zuleruxixosidaxama.pdf In PDF document text
- http://pixel-pro.ru/upload/file/kidimekukupinifugivop.pdfIn PDF document text
- https://thietkevuphong.com/uploads/image/files/gidugevawasanunuwakajijel.pdfIn PDF document text
- https://cananalimdar.com/wp-content/plugins/super-forms/uploads/php/files/7r31s10o4qbj4goefk2p2slqae/kobaforitufozorim.pdfIn PDF document text
- https://emmaushuis.org/pages/51791840585.pdfIn PDF document text
- https://sanipacific.com/attachment/file/roweresedugapu.pdfIn PDF document text
- http://paintingservicesonline.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160873aef933a2---92274231235.pdfIn PDF document text
- http://www.meglobalinc.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1606caab4f18e7---99110087900.pdfIn PDF document text
- http://www.brennholz-heinlein.de/wp-content/plugins/formcraft/file-upload/server/content/files/16088628387191---11045757903.pdfIn PDF document text
- http://bluebirdcanada.com/FileData/ckfinder/files/20210717_71E54E7D144A9E3A.pdfIn PDF document text
- https://glosunspa.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087e87baae7a---18591475424.pdfIn PDF document text
- http://pebyte.com/wp-content/plugins/super-forms/uploads/php/files/ccouf4e48b7etc39d7kv1rpdh7/67284433644.pdfIn PDF document text
- https://fallsplat.se/file/65364659157.pdfIn PDF document text
- http://langeline.com/ckeditor/upload/files/7096056406.pdfIn PDF document text
- http://saharun.org/uploads/ckfinder/userfiles/files/xegoboxi.pdfIn PDF document text
- https://bokseinstituttet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160e03d6357149---nupuvemomazuno.pdfIn PDF document text
- http://edu-family72.ru/content/images/uploads/file/xijozavebufumazuk.pdfIn PDF document text
- http://goref.ru/files/file/vazolosemisopux.pdfIn PDF document text
- https://lakecountyoralsurgery.com/wp-content/plugins/formcraft/file-upload/server/content/files/161189e4b96747---birawa.pdfIn PDF document text
- https://www.alarisusallc.com/wp-content/plugins/super-forms/uploads/php/files/e2dfce37c149ca2eb6306e46bf921584/kuketekibo.pdfIn PDF document text
- https://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160bbcd7e4b350---42727997295.pdfIn PDF document text
- http://jeugdopdewetenschapsagenda.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16084371a6a37a---78499026453.pdfIn PDF document text
- http://shmountaineering.co.uk/wp-content/plugins/super-forms/uploads/php/files/o5udv9089i3592dj89mrstlu16/vafazafatupan.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081199befcbe---lopalidokuzevutowe.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=the+king+warriorPDF link annotation
- 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_off0000f4a6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4A6 | 10216 bytes |
SHA-256: 4809cab97491a2ef24cb50831efee24e4035be115a888cdf4853275c5748caee |
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font_01_sfnt_off00010b90.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B90 | 17468 bytes |
SHA-256: 13454a05e938e3b0a39c7bc3e4a0a592f8828b55897981b066d4d3e90fcba57a |
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font_02_sfnt_off0001392f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1392F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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