MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm, with many URLs pointing to compromised CMS uploads. The PDF document itself contains obfuscated content, but the presence of numerous links to potentially compromised sites suggests a phishing or redirection scheme. No scripts were extracted, but the PDF structure and URL patterns are indicative of a malicious document.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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 http://toyotarentcar.net/FileData/ckfinder/files/20210630_1803D260961252DF.pdf In PDF document text
- https://www.swx.global/wp-content/plugins/super-forms/uploads/php/files/1af447bc837b003264da7d6254b134fc/82829390801.pdfIn PDF document text
- https://investainternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/160840af2239a8---kexawixowuziludi.pdfIn PDF document text
- http://grupogmec.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607edf4c8f0fd---51493539260.pdfIn PDF document text
- http://dianacb.cz/userfiles/file/9517690566.pdfIn PDF document text
- http://www.ks-klinika.ru/ckfinder/userfiles/files/4518739114.pdfIn PDF document text
- http://www.rolstoellift.com/wp-content/plugins/formcraft/file-upload/server/content/files/161324a3d7d9d0---88537934986.pdfIn PDF document text
- http://relocationservicesgroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f7211dbc5b---1234554414.pdfIn PDF document text
- http://bpsstudio.hu/uploads/30252691235.pdfIn PDF document text
- https://chicagoportablexray.com/wp-content/plugins/formcraft/file-upload/server/content/files/16121723e3def4---bazunibubolaxi.pdfIn PDF document text
- https://www.cpro.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1607359fe0430f---37480766417.pdfIn PDF document text
- http://turatabor.hu/media/pazaxaxanuxat.pdfIn PDF document text
- https://psihodesk.ro/ckfinder/userfiles/files/45892623278.pdfIn PDF document text
- https://mikepromedia.com/wp-content/plugins/super-forms/uploads/php/files/gbktnjlh32vab2871ud6jnk047/kojetelipajodigeli.pdfIn PDF document text
- http://c-six.it/userfiles/files/90632546673.pdfIn PDF document text
- http://wabasnb.com/files/fckeditor/file/145233760660d1f781b1c5a.pdfIn PDF document text
- http://petrduchek.com/files/lofulararosirupulisame.pdfIn PDF document text
- https://leo-translate.com.ua/wp-content/plugins/formcraft/file-upload/server/content/files/160776c80b478d---33431788128.pdfIn PDF document text
- https://www.medicalart.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160b0e374d16e4---rukejakovifotalika.pdfIn PDF document text
- http://vudafrique.com/wp-content/plugins/super-forms/uploads/php/files/e68e03c65c92c3b821b20d3d2decf92c/87752245252.pdfIn PDF document text
- http://24cvety.ru/upload/files/mogefezopomolarevojirugeb.pdfIn PDF document text
- https://cengilli.com/icerik_images/file/88030374022.pdfIn PDF document text
- https://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e3489e035e3---96209529407.pdfIn PDF document text
- https://uclerbaklava.com/resources/file/26527293471.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=fleur+du+mal+baudelaire+pdfPDF 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_off0000ed0a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED0A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0001051c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1051C | 21628 bytes |
SHA-256: 02e75dcefaf87475f14b89645af97ff44a7706a017d8d5bda8b15c4cda0ace0f |
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font_02_sfnt_off00013b92.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13B92 | 10388 bytes |
SHA-256: 1f8aaa516bc0b0d86480ee03733792f0751069cdde32b89793c11c1a405a1120 |
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