MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The ML classifier strongly indicated maliciousness, supported by heuristics identifying the PDF as a link farm pointing to compromised CMS upload storage. The document body is unreadable binary data, but the presence of numerous URLs, many hosted on compromised WordPress sites, suggests a phishing or SEO poisoning attack. No scripts were extracted from this sample.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://www.spreefahrten-berlin.de/wp-content/plugins/super-forms/uploads/php/files/7lssa3iri58h3s9kcm6lbrp059/90680077404.pdf In PDF document text
- https://dispomydeal.com/wp-content/plugins/super-forms/uploads/php/files/a328607567567370e9ab352cc543b79a/43231762967.pdfIn PDF document text
- https://webgirls-studio.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d877e18ce57---3467623321.pdfIn PDF document text
- http://zulassung4you.de/bilder/file/vofesonogakaz.pdfIn PDF document text
- http://harasim.cz/uploaded/files/dariwojaperubivupugowej.pdfIn PDF document text
- http://osullivanspressurewashing.com/wp-content/plugins/formcraft/file-upload/server/content/files/160be0d513312a---kigukegupamusaloxeg.pdfIn PDF document text
- https://elitteaccesorios.com/wp-content/plugins/super-forms/uploads/php/files/vk1v5fb126rndlrogr75on5ojf/73963924061.pdfIn PDF document text
- https://alignerco.com/wp-content/plugins/super-forms/uploads/php/files/4c1693171f807db57990cc76d35188a2/88233959438.pdfIn PDF document text
- http://ridendo.cz/files/file/65361726306.pdfIn PDF document text
- http://www.doctor-carpet.com/wp-content/plugins/super-forms/uploads/php/files/uv2k0tob2ihj0013l7s7ldc262/gejotigol.pdfIn PDF document text
- http://atomleasing.ru/media/File/gijejuxexusisixanizo.pdfIn PDF document text
- https://turbooto.vn/upload/files/mazosowuvibenakavas.pdfIn PDF document text
- http://axwelindia.com/uploads/56820791701.pdfIn PDF document text
- https://www.ccps.mx/wp-content/plugins/super-forms/uploads/php/files/6c7d831a3ee6c76bff83b072c268ee86/vatavomekitodoloki.pdfIn PDF document text
- http://wchs65.org/clients/b/bb/bb65574a37642f7fe3135935df861e67/File/25706656451.pdfIn PDF document text
- http://fixafilm.se/userfiles/file/22340328982.pdfIn PDF document text
- https://www.lindopoint.it/wp-content/plugins/super-forms/uploads/php/files/85024b8973a22de6f5bbd76d89f2b7d6/sevufowalatagopolikil.pdfIn PDF document text
- http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/5741e2bb6fc836d9330cdc57d24b6dec/muwikeganojat.pdfIn PDF document text
- https://singaporenotarypublic.com/wp-content/plugins/super-forms/uploads/php/files/65dc8c97843f47dd4c9cf7fe41dee66d/57748378114.pdfIn PDF document text
- https://velvetskin.pl/wp-content/plugins/super-forms/uploads/php/files/9f20913a5953fbe12f68cdb21f29a915/60914603041.pdfIn PDF document text
- http://baanpowertrain.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a0c89bc6acf---sipogigijune.pdfIn PDF document text
- http://dellalontra.it/userfiles/files/sififulivufilabafo.pdfIn PDF document text
- https://yar-net.ru/userfiles/file/legonixegojoki.pdfIn PDF document text
- http://mattstergamer.com/wp-content/plugins/super-forms/uploads/php/files/pefd5t0qlrh6cb5frl1tm15v7e/29827634528.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=figure+of+speech+used+in+the+poem+the+road+not+takenPDF 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_off0000e553.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE553 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fd65.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD65 | 17436 bytes |
SHA-256: 7ab0a2bb07a6c0754217e81c72315c9e3e34ba5cf9c694de2ebb7a42e67b52c9 |
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font_02_sfnt_off00012ab8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12AB8 | 11192 bytes |
SHA-256: dbb664b88ee4de85920d6441d62f8310e64ff5a019d1ad989e4ea8d439f52ca5 |
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