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 threat. It contains numerous links pointing to compromised WordPress upload storage and other disposable hosting, suggesting a link farm designed to distribute malicious content. The document body is heavily obfuscated, but the presence of external URIs and link farms points to a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9986
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://www.chicagoalphas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f117194d30---laxixuvowopejesutenapetux.pdf In PDF document text
- https://narimasu-chintai.net/jcfiles/file/67579450435.pdfIn PDF document text
- https://www.actionconstructionjax.com/wp-content/plugins/super-forms/uploads/php/files/aa4dbf8fe28f73a706f1a737f7f9d561/33812789342.pdfIn PDF document text
- https://gaseg.com/wp-content/plugins/super-forms/uploads/php/files/q99mbl419rno3sr72d89ihubvn/52541077652.pdfIn PDF document text
- https://big-affaires.com/img/pics/files/nizefanusegosefe.pdfIn PDF document text
- http://www.bewegeninarnhem.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160e62485ed8bc---gujawo.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a78c84b50d---2473879631.pdfIn PDF document text
- http://short-story.ru/upload/file/munasumosifunazujagu.pdfIn PDF document text
- https://bhiringisamsankalimandir.org/ckfinder/userfiles/files/88250935854.pdfIn PDF document text
- https://akapacha.com/userfiles/file/61326109161.pdfIn PDF document text
- http://ranjitabiswas.com/userfiles/files/44447157262.pdfIn PDF document text
- http://www.aqsclimited.com/EditorImages/file/19574322147.pdfIn PDF document text
- http://choinka4x4.org/cms/files/file/tomuwurugefali.pdfIn PDF document text
- https://castel.ro/userfiles/file/76871016358.pdfIn PDF document text
- http://www.chinahkcarplate.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d698a628c4---8859571586.pdfIn PDF document text
- https://refour.eu/wp-content/plugins/super-forms/uploads/php/files/2dc8435222843641e8d4ab7d93c2e935/kasedavazurimivigugar.pdfIn PDF document text
- https://aspaeng.com/files/image/files/94661072794.pdfIn PDF document text
- https://ltgtrends.com/wp-content/plugins/super-forms/uploads/php/files/d074bf0b290918e20ffe10489883a114/83581560626.pdfIn PDF document text
- https://www.auditek.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160f06f8176c18---xiwewoxal.pdfIn PDF document text
- https://acornschoolcharleston.org/wp-content/plugins/super-forms/uploads/php/files/de2d09480541f8f07b1b8d02727b2b9c/sekenirebiluvonowunur.pdfIn PDF document text
- http://chicagohalo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a0ec6007d6---3353482022.pdfIn PDF document text
- http://c-amc.com/upload/files/tokezezobomelujeginajizex.pdfIn PDF document text
- https://bykevin.com/wp-content/plugins/super-forms/uploads/php/files/8022941a1ebb82b5d53c04124899ba1d/27892852411.pdfIn PDF document text
- https://stpeterscbs.ca/ckfinder/userfiles/files/fisuwo.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=schedule+3+balance+sheet+format+pdf+downloadPDF 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_off0000f302.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF302 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010b14.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B14 | 16900 bytes |
SHA-256: 56ab4a5aefda4f6092f19817beafe99bb6b0b018aa86b0186549a5b44fe3db5e |
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font_02_sfnt_off00013754.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13754 | 11364 bytes |
SHA-256: d1b28cd5e9b1e99007727d831f1e1540349254e02bc77b10deb48d7349db6069 |
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