MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm pointing to compromised WordPress upload storage, suggesting a phishing or malware distribution scheme. The embedded URLs lead to various domains, many of which are hosted on compromised WordPress sites, further supporting the attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://asu.com.vn/wp-content/plugins/super-forms/uploads/php/files/5olq1djlvhqgc70no9mji9qt01/99332527940.pdf In PDF document text
- https://refundsrefunds.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c68b05cc12b---98363653801.pdfIn PDF document text
- http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/nli4p4p4nfcd4f4vs1g4f4hgs5/mafugikumiluzax.pdfIn PDF document text
- https://livre-art.com/ckfinder/userfiles/files/63758364883.pdfIn PDF document text
- http://beloit1962.com/clients/8/83/8368a4f838dea3176655029ae9e337da/File/27250552271.pdfIn PDF document text
- https://wagaskar.com/media/nubomin.pdfIn PDF document text
- https://www.gml.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b1398b453c1---32458546808.pdfIn PDF document text
- http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cd1e9118d8a---50462644504.pdfIn PDF document text
- http://langfordfinancialservices.com/userfiles/files/bonugigafikifanogumelimu.pdfIn PDF document text
- https://dcoderesearch.com/uploads/nominufedurisotonok.pdfIn PDF document text
- http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b4648f27bce---12954495114.pdfIn PDF document text
- https://law.com.sg/wp-content/plugins/super-forms/uploads/php/files/293521e8ad2cd0dd1996dd0304f4ece5/pexeropelujagusinemurenu.pdfIn PDF document text
- https://sokolzgierz.pl/web/uploads/files/jivinax.pdfIn PDF document text
- https://vallejardin.com/wp-content/plugins/super-forms/uploads/php/files/970a287599e1b6109f7019111483ccfd/76955314849.pdfIn PDF document text
- http://dnepropress.net/files/file/45201475748.pdfIn PDF document text
- https://edu-mate.kr/_UploadFile/Images/file/kiluvulogazusixokan.pdfIn PDF document text
- https://espaciocultivarte.com/ckfinder/userfiles/files/81394457545.pdfIn PDF document text
- http://polymer-optix.de/userfiles/file/19552603847.pdfIn PDF document text
- http://abpaluso.com/upload/file/25802145965.pdfIn PDF document text
- http://cosyromania.com/media/file/lisekeburitudiv.pdfIn PDF document text
- https://law.myvzl.com/wp-content/plugins/super-forms/uploads/php/files/1vscdbebuhvgt9j1jt39qkbqb5/7982275160.pdfIn PDF document text
- https://www.limratechnologies.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607096c66d26e---gupiz.pdfIn PDF document text
- https://energooptima.hu/upload/File/lexavipepegutab.pdfIn PDF document text
- http://pokorny-podlahy.cz/UserFiles/File/xisitibajoxoziw.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=how+to+delete+all+the+messages+in+instagramPDF 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_off0000ff70.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF70 | 16676 bytes |
SHA-256: 58599e443ef000e0db9919738b1f8f0e80c14392391becf95f6c002420f5a1ab |
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font_01_sfnt_off00012a7d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12A7D | 10772 bytes |
SHA-256: c13e9618ffba780bc880b9d4e946d70c6a8e2b6dbd65a5d0247e3b4b449b6251 |
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font_02_sfnt_off000142de.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x142DE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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