MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, which is a common technique for executing malicious code within documents. Additionally, the document exhibits characteristics of a link farm, with numerous URLs pointing to compromised websites, likely serving as a lure for phishing or malware distribution. The ClamAV detection and ML classifier further support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://laborke.ru/uplcv?utm_term=how+to+save+pictures+from+facebook+on+android PDF link annotation
- http://www.gametimecatering.com/wp-content/plugins/formcraft/file-upload/server/content/files/161402a048d884---9912607931.pdfIn PDF document text
- https://mariapolis.es/ckfinder/userfiles/files/burop.pdfIn PDF document text
- https://mt-creativestudio.com/ckfinder/userfiles/files/kukubog.pdfIn PDF document text
- https://webhostmurah.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141665e2f7c0---14971872535.pdfIn PDF document text
- http://nesthomes.in/userfiles/file/nazobunoxopuxetuda.pdfIn PDF document text
- http://buren-kompanie.de/userfiles/files/98488106276.pdfIn PDF document text
- https://shotclock.ca/wp-content/plugins/super-forms/uploads/php/files/de522e62ee00dbb8804f3667cea4609b/kobopukut.pdfIn PDF document text
- http://andrelandberg.com/userfiles/file/2377115964.pdfIn PDF document text
- http://snap-drone.com/userfiles/file/fexoxaxuge.pdfIn PDF document text
- https://bselink.com/userfiles/file/gugudamunilo.pdfIn PDF document text
- http://ckpak.com/fckeditor/userfiles/file/veziguvipegekozuwemejade.pdfIn PDF document text
- http://sanyosushiglendora.com/uploads/files/28412871615.pdfIn PDF document text
- https://fasleh.net/Files/files/fuzonejuwimi.pdfIn PDF document text
- http://anhuizhkj.com/upload_fck/file/2021-9-2/20210902061845786264.pdfIn PDF document text
- https://htfcompact.com/wp-content/plugins/super-forms/uploads/php/files/cd6e2caeeaabb0827d7e84873ed3b958/fikisebogorisibipagav.pdfIn PDF document text
- https://balticstroy.com/uploads/files/69441203642.pdfIn PDF document text
- http://osteriailgalloelinnamorata.com/userfiles/files/niborimogabepivezasix.pdfIn PDF document text
- https://imad0c0.com/js/ckfinder/userfiles/files/lubasakuworo.pdfIn PDF document text
- https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/e9mi8ud73npcg1co39obnc4eo8/wutoro.pdfIn PDF document text
- https://bodymart.in/ckfinder/userfiles/files/52361525235.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_off0000cdcd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCDCD | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e5e4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE5E4 | 11208 bytes |
SHA-256: 692cf1d9a4f8247983c3472577d49d3292a207e686d61f5bb7a1f112a6463dba |
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font_02_sfnt_off0000fff4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFF4 | 16932 bytes |
SHA-256: 3d52ba9337478d9c0ae50cd825de329e6bda923cf2bef6a07721b91af9a59f7b |
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