MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded URLs, many of which point to compromised CMS upload storage or are hosted on disposable domains, indicating a link farm. The ML classifier strongly flagged this PDF as malicious. The primary attack pattern involves luring users to external, potentially malicious, websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
Heuristics 5
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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://catamma.ru/uplcv?utm_term=object+reference+not+set+to+an+instance+of+an+object+iis PDF link annotation
- http://niszczeniewaw.pl/userfiles/file/72256165823.pdfIn PDF document text
- http://www.vitrierbxl.be/wp-content/plugins/formcraft/file-upload/server/content/files/160a0dd237ffc0---79333050129.pdfIn PDF document text
- https://www.alignerco.ca/wp-content/plugins/super-forms/uploads/php/files/47d6b3dce9328be6b802f072a79c330b/45237089755.pdfIn PDF document text
- https://joyfool.art/wp-content/plugins/super-forms/uploads/php/files/f8b19be7f83b9bd7d76fd39f85f14852/pidabonirav.pdfIn PDF document text
- http://accronline.com/userfiles/file/jakalegizavulelarobeviseb.pdfIn PDF document text
- https://www.hauptsache.cc/wp-content/plugins/formcraft/file-upload/server/content/files/160aba4c171b4d---lulokukozebog.pdfIn PDF document text
- https://novahealthclinic.ca/userfiles/file/40846439314.pdfIn PDF document text
- http://www.asejnrtigers.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160b7405b0123c---3043338768.pdfIn PDF document text
- http://fairmonteast1975.com/clients/0/01/014dde3c838f86fef2ac1d31a86c415b/File/laliz.pdfIn PDF document text
- https://acethamessecurity.co.uk/wp-content/plugins/super-forms/uploads/php/files/6c1e6c2a44fe86543b9d6c00c9748171/72811672014.pdfIn PDF document text
- http://loveperfectionschool.com/upload/file/31245771582.pdfIn PDF document text
- https://elitteaccesorios.com/wp-content/plugins/super-forms/uploads/php/files/su3bnbrce6o1a6t3k4fdscj3cd/letofefikopag.pdfIn PDF document text
- http://renovator.cz/files/file/wezipa.pdfIn PDF document text
- https://www.picmephotoboothhire.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607c38fec9b1e---vizikirumelep.pdfIn PDF document text
- https://gauravkankariya.com/wp-content/plugins/super-forms/uploads/php/files/bv552lsklp20j6jt611oed3b73/kifubaxipiwis.pdfIn PDF document text
- http://www.hangmandigital.com/files/file/rumepajidusiv.pdfIn PDF document text
- http://www.mediacomriccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/1608c65ad1cd73---gapebuvisudizajep.pdfIn PDF document text
- https://autoschiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607e169bc926f---5244887312.pdfIn PDF document text
- https://leunamgroup.com/wp-content/plugins/super-forms/uploads/php/files/7d6b24a1b2d0fa27502d53518cac8c9a/30824822259.pdfIn PDF document text
- https://www.carlosfunes.es/wp-content/plugins/formcraft/file-upload/server/content/files/16079f3fb4560c---volajijumabijid.pdfIn PDF document text
- http://fouladsazanco.com/Upload/file/zugovubidimufed.pdfIn PDF document text
- http://a-kamen.com/userfiles/file/wazevisup.pdfIn PDF document text
- http://bensonlandscape.com/editorData/file/88964759369.pdfIn PDF document text
- http://xn--clinicaquirogavilario-vbc.com/wp-content/plugins/super-forms/uploads/php/files/9qrb0em91p24m7a6bblbd1puc3/67352744188.pdfIn PDF document text
- http://auroraenergyproject.it/userfiles/files/34586236597.pdfIn PDF document text
- https://haps.company/wp-content/plugins/super-forms/uploads/php/files/vgt6049bkknfi081e5qiuqr6r6/xoxamekawewawefalase.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_off0000edc1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDC1 | 10576 bytes |
SHA-256: c247c4fac0d0d94c6a52e86d86ad0eda6fc538ad82022dbac271bc11ebbc0b29 |
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font_01_sfnt_off00010611.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10611 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011e23.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E23 | 28388 bytes |
SHA-256: 0bfe4474eeffde16bd7f5d70e2c57d46f1b978d1e8025f578855cc43f6cab57b |
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