MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as Pdf.Phishing.Trojan. The numerous embedded URLs, many pointing to compromised WordPress sites and using UTM parameters, suggest a phishing or malware distribution campaign. The file's structure as a link farm indicates an attempt to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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 https://cructi.ru/uplcv?utm_term=slader+advanced+mathematical+concepts
- http://www.kevinbrooks.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607b1c6723ccf---19856776610.pdf
- http://www.stockholmswingallstars.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9acb0c7b63---talodenitajasunemubarigo.pdf
- http://xn--54-dlcdkamdj4btild5b.xn--p1ai/ckfinder/userfiles/files/besarovemokisumek.pdf
- https://www.yoursurveysurveyors.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160baf84406cb4---welogugejar.pdf
- http://xn--vb0b83rba554gca.kr/page_data/file/20210529015948.pdf
- http://www.majoriscambio.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160902f9f26851---nubomit.pdf
- https://amalighting.com/wp-content/plugins/super-forms/uploads/php/files/22961d4ecb5c173a5984836323893806/13062114187.pdf
- http://kruengrangthai.com/files/files/68608167749.pdf
- https://contabil-fiscal.ro/mm/file/90346738234.pdf
- https://legacyltg.com/wp-content/plugins/super-forms/uploads/php/files/731c2186a46c146dc9928822ea556e22/8667804216.pdf
- https://growmytruck.com/wp-content/plugins/super-forms/uploads/php/files/6d44ce4e722686743a260cefd62fde58/jadulenalamutipuve.pdf
- https://gmonlinestore.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077f14694130---94606245740.pdf
- https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c5b3fc8d5c8---nexepus.pdf
- http://africa-emergence2019.com/userfiles/file/40016255317.pdf
- http://smithmurdock.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b91f8fb32c1---84204397645.pdf
- https://www.rekalibracija.com/wp-content/plugins/super-forms/uploads/php/files/c808437260d46456c44fd94ce20b2f62/71700259092.pdf
- http://vipavtoufa.ru/wp-content/plugins/super-forms/uploads/php/files/93609107bfebd25df0fc32e9bf868e62/18657241481.pdf
- https://sealskinz.ru/files/file/dejizode.pdf
- https://event-connections.net/wp-content/plugins/formcraft/file-upload/server/content/files/160929f7b0e656---tusax.pdf
- http://msiutilities.biz/documents/geketetevum.pdf
- http://hasyo.net/files/file/69983364185.pdf
- https://coloreverything.love/wp-content/plugins/super-forms/uploads/php/files/154323b9dd146cf63ed78153b9c6d904/nojuvu.pdf
- http://africanhairbraidingsalon.com/userfiles/file/4667078838.pdf
- https://www.tangelo.no/wp-content/plugins/formcraft/file-upload/server/content/files/1609daeae1045a---genazanoxazisikuxitifo.pdf
- https://pankalconstructora.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bc6323d8f25---navawuniparidudutupot.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_off0000e41b.binbc81717dd8e3ab08088fcc19ea33b215a1ebda5a7b3d800b65a63d13f5e1adb1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE41B | 17140 bytes |
font_01_sfnt_off000110f7.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x110F7 | 16792 bytes |
font_02_sfnt_off0001290e.bin0e0fd8f7f274146bd65a0c16c26d773f22d0339ea3c7da72c4e9838ae9a1bd86 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1290E | 10920 bytes |
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