MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous external URIs pointing to compromised WordPress sites and other domains, indicating a link farm designed to redirect users to potentially malicious content. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is part of a phishing or malware distribution scheme. No scripts were extracted, but the extensive use of external links suggests a primary function of redirecting users to attacker-controlled infrastructure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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://philabc.ru/uplcv?utm_term=software+systems+architecture+second+edition+pdf PDF link annotation
- https://turismoporsantander.com/aym_image/files/3974864397.pdfIn PDF document text
- https://study-go.info/wp-content/plugins/super-forms/uploads/php/files/316d35b35bf7b76dc9b5c63cb2eff351/sudedugigiwaronaf.pdfIn PDF document text
- https://maidintown.co.uk/wp-content/plugins/super-forms/uploads/php/files/3dd884241915a7bb13aa3e63f0bb67b7/lujiv.pdfIn PDF document text
- http://lisahyatthealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d958b624c70---lipalebet.pdfIn PDF document text
- http://lotuscourtpune.com/wp-content/plugins/super-forms/uploads/php/files/brmgs89vr49n21aj5rv0g87116/dejubiz.pdfIn PDF document text
- https://beaumont-residence.com/wp-content/plugins/super-forms/uploads/php/files/pgmavajjj3b3sdtlja8okfchqc/60841569531.pdfIn PDF document text
- https://mimpishio1.com/contents//files/mowawefebekorij.pdfIn PDF document text
- http://apvn.info/userfiles/file/fapuxesawefonejoge.pdfIn PDF document text
- http://dancephoto.ru/userfiles/files/76070948049.pdfIn PDF document text
- http://www.medicellbank.com/userfiles/files/37305408789.pdfIn PDF document text
- http://rasmesafar.net/basefile/basefiles/53601642720.pdfIn PDF document text
- https://frasertechno.com/wp-content/plugins/formcraft/file-upload/server/content/files/160943333a0890---buderiw.pdfIn PDF document text
- https://handientu.vn/userfiles/file/kimaz.pdfIn PDF document text
- https://pass-eco-energies.com/ckfinder/userfiles/files/kivixufajupodop.pdfIn PDF document text
- http://gps-tw.com/CKEdit/upload/files/wefexusibutapezefefajis.pdfIn PDF document text
- http://melissajacksonmd.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d068d402405---61440793571.pdfIn PDF document text
- https://audit-advisers.com/userfiles/file/fowodegaserudizadumena.pdfIn PDF document text
- http://phutungvespaco.com/luutru/files/55999843957.pdfIn PDF document text
- https://rmp-familienanzeigen.de/cms/files/52331353206.pdfIn PDF document text
- http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/160820e3fd2410---vudimuw.pdfIn PDF document text
- http://coreaad.com/DreamDataUpload/file/kinimejenasovowemituda.pdfIn PDF document text
- http://maximaviajes.com/FCKfiles/file/91592611919.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_off0000f0bc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0BC | 17620 bytes |
SHA-256: 546950aa652f1c541f61c407fd5379767846846d2721f4025b950625f1a2cbeb |
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font_01_sfnt_off00011e23.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E23 | 11216 bytes |
SHA-256: c6b30cfdf02145ff6bdc4af5592654821d7587c7c45f3dd402848915ba5b147b |
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font_02_sfnt_off00013856.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13856 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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