MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains a link farm pointing to numerous compromised websites, likely intended to trick users into downloading further malicious content. The presence of external URIs and the nature of the heuristics suggest a phishing attempt disguised as a document, potentially using embedded JavaScript to facilitate the download.
Machine Learning
- Nyx PDF Classifier malicious score 0.9840
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://oniceh.ru/uplcv?utm_term=interview+tips+pdf+free+download PDF link annotation
- https://promobryansk.ru/userfiles/files/23105211304.pdfIn PDF document text
- http://quincy.pl/ckfinder/userfiles/files/zukejed.pdfIn PDF document text
- http://www.allatpatikapecs.hu/images/file/3546069983.pdfIn PDF document text
- https://www.nobleorthodontic.com/wp-content/plugins/super-forms/uploads/php/files/6ce1bbd31c84b84c657bed6778b6762f/buxixirapasinojab.pdfIn PDF document text
- https://www.truesdalepainting.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071820d85029---tegikobimazijavu.pdfIn PDF document text
- http://allegroescrow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160afab330be46---widiv.pdfIn PDF document text
- http://geology.ie/wp-content/plugins/formcraft/file-upload/server/content/files/1609b6c5760931---vobosewasapiwumik.pdfIn PDF document text
- https://refundsrefunds.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130cfea1ab98---mubijiguvapaximejeze.pdfIn PDF document text
- http://aiswaryamatrimonials.com/fck_uploads/file/balodeb.pdfIn PDF document text
- http://centreforeffectivecoaching.com/media/file/51818197819.pdfIn PDF document text
- http://averon.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607c48f2460bf---vipuwivupiselem.pdfIn PDF document text
- http://abbuffalowings.com/uploads/files/12723726460.pdfIn PDF document text
- https://web-sila.ru/wp-content/plugins/super-forms/uploads/php/files/abfb54521148d7efe02043e10423d4f8/73717013306.pdfIn PDF document text
- http://hferrynetworks.com/FileData/ckfinder/files/20210818_470EC24CFEBDD548.pdfIn PDF document text
- http://multiseal.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/160a9d48934e39---50870487972.pdfIn PDF document text
- http://asesoriagarpe.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e2ba362d29---poretexev.pdfIn PDF document text
- http://xn--42-jlclgg6a3e.xn--p1ai/userfiles/file/wuxerofivizefupuwete.pdfIn PDF document text
- https://tkpmission.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b6360378149---folawikovux.pdfIn PDF document text
- http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16129039de9bad---1822545725.pdfIn PDF document text
- http://socialbomjesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160859673df1c8---fazemesej.pdfIn PDF document text
- https://detskeihriska.eu/ckfinder/userfiles/files/wemoxegakipezejojij.pdfIn PDF document text
- https://cashofferoregon.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d46c1fdc4a4---xotin.pdfIn PDF document text
- http://plkorea77.com/ckupload/files/67254765405.pdfIn PDF document text
- https://hoanghaie.com/Images_upload/files/72109649268.pdfIn PDF document text
- http://absigorta.com/E/file/37940703616.pdfIn PDF document text
- https://digireg.si/upload/50220917731.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_off0000c050.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC050 | 17248 bytes |
SHA-256: 899a9fc882a064e7bb6c5f910f4ba1235751681cc532919c2fe9ec80dba3f67e |
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font_01_sfnt_off0000ec52.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC52 | 10592 bytes |
SHA-256: 87b4ad5e803f11e7e11987ae08bef7e4e55fdb123b8047f4f855b3b38d615890 |
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font_02_sfnt_off000104ac.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104AC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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