MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains numerous embedded URLs, many of which point to compromised CMS uploads and disposable hosting, indicating a link farm designed for phishing or malware distribution. The ML classifier and ClamAV detection strongly suggest malicious intent. The primary attack pattern involves luring users through a malicious attachment to a series of redirects.
Machine Learning
- Nyx PDF Classifier malicious score 0.9971
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://ericshartman.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/busurusipapagugijam.pdf In PDF document text
- http://bjyhyy.cn/filespath/files/20210916113406.pdfIn PDF document text
- http://www.champcaregivers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ed8f61cf92---82401351882.pdfIn PDF document text
- http://nut-shell.net/upload/files/75454427931.pdfIn PDF document text
- http://ominocoibaffi.it/userfiles/files/42980315444.pdfIn PDF document text
- https://www.luthier-auxerre.fr/ckfinder/userfiles/files/67838879088.pdfIn PDF document text
- http://www.absolutecateringla.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134344721a25---mizowesoko.pdfIn PDF document text
- http://123podkrovie.sk/editor_uploads/files/29846750891.pdfIn PDF document text
- https://karaari.leaddeehub.com/userfiles/files/51761414842.pdfIn PDF document text
- https://ooo-kenk.ru/userfiles/file/miwabifelozanabiva.pdfIn PDF document text
- https://www.hotel-palladium.gr/wp-content/plugins/super-forms/uploads/php/files/4t5vqe3u4odhmta85t4drrg107/jojanowemupu.pdfIn PDF document text
- https://creativesilhouettes.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16142c193b1529---53812005263.pdfIn PDF document text
- http://robalton.es/Albums/images/file///timeraj.pdfIn PDF document text
- http://vhshf.de/File/60181206975.pdfIn PDF document text
- http://erbamedica.org/userfiles/files/13145156993.pdfIn PDF document text
- http://burmeseburmilla-allevamento.com/userfiles/files/97764577838.pdfIn PDF document text
- https://office-agglo-larochelle.fr/userfiles/file/32937950473.pdfIn PDF document text
- http://donghozibistore.com/luutru/files/xowaxuzuruteledezedazegi.pdfIn PDF document text
- http://xn--tnqz8hz5cb8l.com/upload/files/lififanupi.pdfIn PDF document text
- https://transcendenceit.com/wp-content/plugins/super-forms/uploads/php/files/2e4ef995fea62abe3241d96cf31bdec5/vifibuxu.pdfIn PDF document text
- https://www.rath-catering.de/wp-content/plugins/formcraft/file-upload/server/content/files/16135e021cbb1b---32668630713.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=after+we+fell+the+movie+release+datePDF 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_off0000bc87.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBC87 | 16992 bytes |
SHA-256: 9a4d53e5f94f026510f4f4f01c714f00c37027bf57fadadfc09d13cbfb444b5e |
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font_01_sfnt_off0000e83f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE83F | 10648 bytes |
SHA-256: d70597a7847e30c6127803ea317d7f6058567b81900eae10179258a162286147 |
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font_02_sfnt_off000100b7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100B7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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