MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous links to compromised WordPress sites, suggesting a link farm used for distributing malicious content or phishing. The document body, though heavily obfuscated, contains text related to a 'Kansas drivers learners permit study guide', likely a lure to entice users to click on the embedded malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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://bizwd.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a0255143d6---fupudusefitadur.pdf In PDF document text
- https://carthink.org/wp-content/plugins/formcraft/file-upload/server/content/files/16070cc13b4dba---58783078460.pdfIn PDF document text
- https://www.kadinlarsitesi.org/wp-content/plugins/formcraft/file-upload/server/content/files/16073fc61e98ea---74753023682.pdfIn PDF document text
- http://israel-aliya.com/wp-content/plugins/super-forms/uploads/php/files/e4048f4ab8eb6bcc7ccfed7cd798e663/pegonatezezutum.pdfIn PDF document text
- http://www.gcsystem.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1607a6b1807aec---xoviwovewajilinasutad.pdfIn PDF document text
- http://raunlarose.us/wp-content/plugins/formcraft/file-upload/server/content/files/1606d15a146e3d---38708120106.pdfIn PDF document text
- http://anthonyvienna.com/sites/default/files/file/fufedinetenetiruvajidofiw.pdfIn PDF document text
- https://flylights.pl/wp-content/plugins/super-forms/uploads/php/files/lbtdp8016akl4av6ni08o8e1h8/firenunezezogugadonajob.pdfIn PDF document text
- https://flylights.pl/wp-content/plugins/super-forms/uploads/php/files/novk2ljrfsj78mpit97ni7hduc/80340286725.pdfIn PDF document text
- http://alphasigmaoverseas.com/userfiles/file/79694679282.pdfIn PDF document text
- https://autoschiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607294f1195a0---70601237228.pdfIn PDF document text
- https://canadianrelocation.net/wp-content/plugins/formcraft/file-upload/server/content/files/160813770be35c---68540561426.pdfIn PDF document text
- http://www.kmclogistics.com/wp-content/plugins/super-forms/uploads/php/files/f6c0e2ee0467fb31d69fbd4fe5895a69/vazax.pdfIn PDF document text
- https://comesa.com.pe/wp-content/plugins/super-forms/uploads/php/files/fetma3lblkjd8fqo4aknhk9vf3/jexipogufofuwotivamoruxez.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=kansas+drivers+learners+permit+study+guidePDF 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000da40.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA40 | 5412 bytes |
SHA-256: 393122bbfb709fc5e609693683a6ede4dd9a23d1c48b12a96265983b426a092c |
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font_01_sfnt_off0000eca6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECA6 | 10632 bytes |
SHA-256: 6d39d24e330c3607ab83e1cdcbcc71acd90068ce0d32982d3a881d565164d22c |
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