MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs, many pointing to compromised WordPress sites, suggesting a link farm or phishing lure. The heuristic 'SE_CALLBACK_LURE' indicates the document may be designed to trick users into calling a phone number for a scam. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or a scam campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
Heuristics 7
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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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://medvor.ru/uplcv?utm_term=electrical+layout+symbols
- http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/4b38ed0a228871d2eddd4ace44388636/85298127220.pdf
- https://motacademy.it/file/mebolejoxipetenujemeleri.pdf
- https://www.frankcapassoandsons.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086f9ca5b266---15585283313.pdf
- https://www.ergunaygoren.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d88b22e081---97004729465.pdf
- https://www.swissfillon.com/wp-content/plugins/super-forms/uploads/php/files/c87ca20cfd95764643386c9c576afa48/robunitudis.pdf
- http://nd-58.ru/wp-content/plugins/super-forms/uploads/php/files/f03ad8797cf376c551f50aa20ee5b72a/81921945794.pdf
- https://mudateconmigo.cl/wp-content/plugins/super-forms/uploads/php/files/98a05655f1308658aa6a1be3be1233a0/99858316200.pdf
- https://www.nobleorthodontic.com/wp-content/plugins/super-forms/uploads/php/files/e38863f398e4ca7ef36b295a9c68784c/wofuzejegoja.pdf
- https://refundsrefunds.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090c334e1359---47571007814.pdf
- https://www.sharpeningfactory.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac2f9482395---lujamumuwik.pdf
- https://www.hungryalex.com/wp-content/plugins/super-forms/uploads/php/files/8855b414fb28057c357a0810ed6e1d8c/silesixomigenur.pdf
- http://www.drop-lok.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f3b2491e46---guwuv.pdf
- http://iideree.org/wp-content/plugins/formcraft/file-upload/server/content/files/16077956303721---jekulunakunevomunadu.pdf
- http://iideree.org/wp-content/plugins/formcraft/file-upload/server/content/files/16084495fd7763---lumigitibotexagubu.pdf
- https://webhostmurah.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072800e3c216---91266641393.pdf
- https://gdr.co.il/wp-content/plugins/super-forms/uploads/php/files/13f2c8a22224025bb22ae73eaa544642/jodigilizumi.pdf
- http://jmvlpslimited.com/ci/userfiles/files/91123194728.pdf
- http://queuemanagementsystems.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081d3b00126b---fololamobokadaxajozip.pdf
- https://www.avenueroadadvertising.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094ac9e850bd---xeripejanudojep.pdf
- https://www.siemers-deutschmann.de/wp-content/plugins/super-forms/uploads/php/files/29mvqp4v68pu6esaef4c36ckq0/99728729061.pdf
- https://artsketch.ru/wp-content/plugins/super-forms/uploads/php/files/8524a62d6df257606df0d050d6579ea3/67317023318.pdf
- http://studiofapas.it/userfiles/files/40263490281.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e2ee.binffb6ed9eab087961734129ddd9d232455320498e59e325c972196a583a75c093 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2EE | 10624 bytes |
font_01_sfnt_off0000fb52.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB52 | 16792 bytes |
font_02_sfnt_off00011364.bin185da1a4b34fc262f66605f2e754ce9d1365fcba541e16b64871f76cad90b159 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11364 | 16828 bytes |
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