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 an ML classifier as malicious, with ClamAV identifying it as a phishing trojan. The file contains numerous external links, many pointing to compromised CMS uploads and disposable hosting, suggesting a link farm designed to redirect users to malicious sites. No scripts were extracted, but the overall structure and URL patterns indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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=lysogenic+cycle+of+lambda+phage+pdf PDF link annotation
- http://kasargod.net/uploads/file/buzejovogeber.pdfIn PDF document text
- http://tjsyjdq.com/v15/Upload/file/20218281044114460.pdfIn PDF document text
- https://hanomanberjaya.com/contents/files/96647725915.pdfIn PDF document text
- http://www.thelawchamber.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6b13bda58a---50232427477.pdfIn PDF document text
- https://taperagi.com/contents//files/5784133209.pdfIn PDF document text
- http://shinserviceodi.ru/wp-content/plugins/super-forms/uploads/php/files/e5157a9aa1a640e834b2e7dfe8394073/47293600823.pdfIn PDF document text
- http://augustaelectricalwork.com/editorData/file/xufuduvozilivuz.pdfIn PDF document text
- http://reiki-roots.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc0bb52786---3943835136.pdfIn PDF document text
- http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/rj5c0nlde6i1dncsv2026vvcv5/dowelusujuvataf.pdfIn PDF document text
- http://elrey-uslugi.ru/media/file/juwedepasebajizanedak.pdfIn PDF document text
- https://www.rowtheerne.com/wp-content/plugins/super-forms/uploads/php/files/acaffdaf6f29dfb54843cc61f0b4562b/xaberojesubewuxikaveba.pdfIn PDF document text
- http://www.anieliasfx.com/uploads/textareas/file/54864550809.pdfIn PDF document text
- https://twinslock.com/locktactyuma/userfiles/file/37260994980.pdfIn PDF document text
- http://claudiodauelsberg.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161277444eb401---57312474158.pdfIn PDF document text
- https://stallion-international.com/userfiles/file/76040107066.pdfIn PDF document text
- http://xn--80aer5aza.xn----htbdepbihnfb8cyg.xn--p1ai/ckfinder/userfiles/files/5039236086.pdfIn PDF document text
- http://rana-international.com/userfiles/files/bonexabekime.pdfIn PDF document text
- http://sarljarry.fr/userfiles/file/xenigi.pdfIn PDF document text
- http://akbmodel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160869806152f8---gelagenawikegoxupaxo.pdfIn PDF document text
- https://mama-light.net/business_school/uploads/file/xikafaz.pdfIn PDF document text
- https://doanhnghiepvietnam.org/img_duhoc/files/10849750669.pdfIn PDF document text
- http://kingcraftviet.com/uploads/ckfinder/files/24588609186.pdfIn PDF document text
- https://floorco.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/7f7eec242d9fd492b563cc0b37414049/fafupeg.pdfIn PDF document text
- https://hylyt.co/wp-content/plugins/super-forms/uploads/php/files/0cccb7389b339b868e2af127856a04df/vivakanogoso.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_off0000dfcf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDFCF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f7e1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7E1 | 18432 bytes |
SHA-256: d1219231b5aae1ab592f6d9122a374998a9c5c0881cef661296e82ff9b746311 |
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font_02_sfnt_off00012800.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12800 | 11080 bytes |
SHA-256: 7237296d461d17ab4d8c9f2bc0d283415c077adb0601576244595b446b0121a5 |
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