MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by multiple heuristics and an ML classifier as malicious, with ClamAV identifying it as a phishing trojan. The document contains a large number of external URIs and link farm patterns, suggesting its primary purpose is to redirect users to potentially malicious websites. The presence of a compromised CMS upload link further supports this, indicating a distribution mechanism for malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
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://irlanc.ru/uplcv?utm_term=blackmart+apk+for+android+free+download PDF link annotation
- http://casier-a-bouteilles.fr/file/60176918309.pdfIn PDF document text
- http://aptekainternetowa.net/_mdm_apteki/file/56750621081.pdfIn PDF document text
- https://resulgame.com/calisma2/files/uploads/3239473066.pdfIn PDF document text
- http://teakdeck.pl/files/file/berivamabozo.pdfIn PDF document text
- https://braintreeclinics.com/app/webroot/img/files/73119661834.pdfIn PDF document text
- https://eol.org.pe/ckfinder/userfiles/files/82312588869.pdfIn PDF document text
- http://becskeicsodajo.hu/admin/fck_upload/file/70801402903.pdfIn PDF document text
- http://eko-inwest.eu/upload/file/64176895893.pdfIn PDF document text
- https://zazilha.com.mx/wp-content/plugins/super-forms/uploads/php/files/3f0646fb7b8eec9e8e68fb8c195ba8aa/zorejikemedijo.pdfIn PDF document text
- http://xn--42cfa4ewb0a0b3fwh.com/imageupload/files/88306868796.pdfIn PDF document text
- https://www.tctnanotech.com/wp-content/plugins/super-forms/uploads/php/files/ade342fc718afeb48922a73edbf15de5/gagukezak.pdfIn PDF document text
- http://klemanpince.hu/files/file/kugilimez.pdfIn PDF document text
- https://playerpress.com/ckfinder/userfiles/files/datoxetewuteverasapakogu.pdfIn PDF document text
- https://eseninternational.com/uploads/files/filetejexa.pdfIn PDF document text
- http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16144ce7561037---bobaxosibirozixumafez.pdfIn PDF document text
- http://0048.pl/48files/file/zaxorufavidifowovenuni.pdfIn PDF document text
- https://supermagnum-bg.com/userfiles/file/xefunuduvajeza.pdfIn PDF document text
- https://ecoquimica.cl/dinamicos/uploads/file/larerigotax.pdfIn PDF document text
- http://makeyourpartnermelt.com/userfiles/file/22105015642.pdfIn PDF document text
- http://orderkai.com/uploads/files/gewabamibepubugum.pdfIn PDF document text
- http://uklearningnetwork.com/userfiles/file/6495045729.pdfIn PDF document text
- https://isitekmuhendislik.com/userfiles/file/22494768831.pdfIn PDF document text
- http://cadelupo.it/userfiles/files/81821293218.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_off0000b1d0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB1D0 | 14864 bytes |
SHA-256: 7bda509e47484a8903d41d8c2cecf84ccb03c0e292d51cbe7cc972d7717157bf |
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font_01_sfnt_off0000d726.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD726 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000ef3d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF3D | 10844 bytes |
SHA-256: 3d4f4fd2d301e8fcd333e4f8a3047da1cea395f9b52ae3681c97b1f5b96e35d6 |
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