MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links pointing to compromised CMS upload directories and disposable hosting, suggesting a phishing or malware distribution scheme. The PDF structure and link farm indicate it's designed to redirect users to potentially harmful external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9983
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://akapacha.com/userfiles/file/42886592274.pdf In PDF document text
- http://thunderstar.cn/userfiles/file/20210611091356412275780.pdfIn PDF document text
- https://mcq-exambd.com/app/webroot/ckfinder/userfiles/files/tubesibenamufogupiraku.pdfIn PDF document text
- http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b5a59d313af---daxobutadukiv.pdfIn PDF document text
- http://www.alwaysflorida.com/wp-content/plugins/formcraft/file-upload/server/content/files/16100ef99eec0a---luzopezolarezufuf.pdfIn PDF document text
- http://innotack.com/userfiles/files/basedagurisetubezuzoli.pdfIn PDF document text
- http://hublihorse.com/uploads/userfiles/files/witukebib.pdfIn PDF document text
- http://aire-limpio.com/img/editor/file/zediromekagipefebel.pdfIn PDF document text
- http://riversedgefm.com/files/file/98298754785.pdfIn PDF document text
- https://sodigital.it/wp-content/plugins/formcraft/file-upload/server/content/files/160f23e0dd7b1c---dutoxojinozipe.pdfIn PDF document text
- http://aksaxena.com/bpms/includes/fckeditor_uploads/userfiles/file/29456353547.pdfIn PDF document text
- https://styliststudios.com/imagesTE/file/66120351633.pdfIn PDF document text
- http://frangarcia.eu/upload/file/52773842268.pdfIn PDF document text
- http://ac-kenigsberg.ru/files/file/62009297083.pdfIn PDF document text
- http://slowjamsundays.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b89fa06860c---48204127870.pdfIn PDF document text
- https://glowskincare.net/wp-content/plugins/super-forms/uploads/php/files/cc0dcc18296790dd2df9454bf13a3805/dixofopurudometo.pdfIn PDF document text
- http://elliptical-trainers.ru/ckfinder/userfiles/files/42268607798.pdfIn PDF document text
- https://talleresimad.com/images/subidas/files/86290025550.pdfIn PDF document text
- http://www.wcd.com.tw/ezadmin/ckfinder/userfiles/files/pizubudikesizetub.pdfIn PDF document text
- https://mls.lighting/wp-content/plugins/super-forms/uploads/php/files/df6307f5fa3045c459d080b84b942acc/juratuvezod.pdfIn PDF document text
- https://norservis.com/files/files/31460618140.pdfIn PDF document text
- http://www.physedu.in/newsite/userfiles/files/23339860275.pdfIn PDF document text
- http://dlastudenta.org/Upload/file/11871027849.pdfIn PDF document text
- https://cvconstructionsgoa.com/pharma/admin/userfiles/file/domepimal.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=que+es+un+protozoo+ejemplosPDF 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_off0000e474.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE474 | 10508 bytes |
SHA-256: 3bf0746880a7784679d6a07529e39a5abbfc2c7b4555c05721f645460699813b |
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font_01_sfnt_off0000fc8a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC8A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001149c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1149C | 17128 bytes |
SHA-256: 3316d9637140449a09dd8ed12717b4849e2dab4dbff92eb1958df55c601e1d9c |
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