MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was identified as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. It contains numerous links, many pointing to compromised CMS upload directories or disposable hosting, suggesting a link farm designed to redirect users to potentially malicious sites. The presence of external URIs and a link farm pattern strongly indicates an attempt to lead users to external resources, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://egf.tw/test2/images/file/55247854410.pdf In PDF document text
- http://ngpsusa.com/wp-content/plugins/super-forms/uploads/php/files/jolmbqpdesrjqngrh8hg8742km/54148244626.pdfIn PDF document text
- https://www.mercato.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160834930ec1f6---duworu.pdfIn PDF document text
- http://cnex.cc/images/blog//file/82636547917.pdfIn PDF document text
- https://www.pietri-automobiles.com/wp-content/plugins/super-forms/uploads/php/files/ooeit4jsuta17s9qbrjir2mipd/fuvonizasivo.pdfIn PDF document text
- https://rubyyadav.com/nbloom/fckuploads/file/6534708213.pdfIn PDF document text
- http://gphs84.com/clients/866382/File/33249752544.pdfIn PDF document text
- http://okfilm.kr/userData/board/file/kirerawibemujedi.pdfIn PDF document text
- https://afanasyev-design.ru/wp-content/plugins/super-forms/uploads/php/files/ca3f6049d3a00c3f83fc893c11a627a2/jonigeratuzumetedide.pdfIn PDF document text
- http://mpu-beratung-brendle.de/userfiles/file/zowifod.pdfIn PDF document text
- http://payassistinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074d656abd5d---zugosati.pdfIn PDF document text
- http://zlato-stribro-investice.com/upload/files/kafebosefur.pdfIn PDF document text
- http://www.kidnuri.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c9b4164f354---62454976369.pdfIn PDF document text
- http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/1608024486725f---46808021912.pdfIn PDF document text
- http://mfplus.ba/wp-content/plugins/formcraft/file-upload/server/content/files/160dc7c5535eac---jelonepafu.pdfIn PDF document text
- http://geredekombiservisi.com/userfiles/file/98937198064.pdfIn PDF document text
- http://clearlakesd.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a858a8e5660---48360846535.pdfIn PDF document text
- http://centrons.com/uploaded/file/1130035240610e58b801670.pdfIn PDF document text
- https://www.d-table.com/wp-content/plugins/super-forms/uploads/php/files/3d706282809e50f11ee69d4c177d5945/sowojukuzatarimixekipoj.pdfIn PDF document text
- http://alfavs.eu/userfiles/file/9782099394.pdfIn PDF document text
- https://imapcb.org/wp-content/plugins/super-forms/uploads/php/files/bkm5jhnnjt36iqhbeotqu44pj0/82423223839.pdfIn PDF document text
- http://meyanko.com/userfiles/file///xejirokap.pdfIn PDF document text
- http://www.investing-in-women.com/wp-content/plugins/formcraft/file-upload/server/content/files/160966825657cf---zajiravakadulozug.pdfIn PDF document text
- http://andlupa.com/userfiles/file/275826740.pdfIn PDF document text
- https://westcoastmovers.ca/wp-content/plugins/super-forms/uploads/php/files/9me54npqnc43606l5rbetl9ngf/31490930773.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=walmart+assessment+answers+section+1PDF 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_off0000f342.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF342 | 10524 bytes |
SHA-256: 229fd6d353b2852ccee11f3e62b35705e08491cf837a5fa6743e9b5fadf532d5 |
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font_01_sfnt_off00010b4d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B4D | 17216 bytes |
SHA-256: 671cdf307db61e9adb2e47b0ef9c51f5641faeb1e9e10ca875b2824a1d482a35 |
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font_02_sfnt_off0001384d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1384D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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