MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It functions as a link farm, directing users to multiple compromised WordPress sites. The presence of numerous external URIs and the 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic strongly suggest an attempt to lure users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9944
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 https://psychotherapie-dr-albrecht.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607aa41130355---taruforebuwuvafapemazex.pdf In PDF document text
- https://actor-conseil.com/files/file/pepanaliwabikel.pdfIn PDF document text
- http://www.carolglassman.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611457b9d93bf---vinixiba.pdfIn PDF document text
- http://www.tif.cn/wp-content/plugins/super-forms/uploads/php/files/qja5fk84u8q3eqbvc3og9tmosg/230570953.pdfIn PDF document text
- http://travellightnepal.com/userfiles/file/70412611918.pdfIn PDF document text
- https://terminarz.online/kosmetyczka/krakow/files/31738105378.pdfIn PDF document text
- http://tindangnhadat.vn/upload/files/75740212900.pdfIn PDF document text
- http://seventyfirstclassof69.com/clients/60772/File/lapofiv.pdfIn PDF document text
- http://autoshiftbid.com/fckeditor/userfiles/file/guribadozez.pdfIn PDF document text
- http://ideviceplus.nl/app/webroot/files/userfiles/files/63662480787.pdfIn PDF document text
- http://www.viksexteriors.com/wp-content/plugins/formcraft/file-upload/server/content/files/16106ca476c4a4---41575644835.pdfIn PDF document text
- https://ols.lighting/wp-content/plugins/super-forms/uploads/php/files/56b6b5854da00b0067f4836e3e59408e/82204970770.pdfIn PDF document text
- https://semagro-msw.ru/pics/images/file/pemawisopozozodul.pdfIn PDF document text
- http://www.linkkorea.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/160de3693c41ad---jigalakixat.pdfIn PDF document text
- https://teamcode.net/upload/files/sebuxejokobapojotipejok.pdfIn PDF document text
- http://kemmurad.com/webroot/img/files/30763844858.pdfIn PDF document text
- https://proektasis.gr/admin/spaw2/uploads/files/mopula.pdfIn PDF document text
- https://ewt.cz/res/file/38625900318.pdfIn PDF document text
- https://mindweave.co.uk/wp-content/plugins/super-forms/uploads/php/files/0vslk2aj3j72ef39msnrv7jmok/69409381210.pdfIn PDF document text
- http://naturallabs.de/userfiles/file/17681867941.pdfIn PDF document text
- https://maisonforville.be/documents/file/jazerodovovegi.pdfIn PDF document text
- https://cor.org.ar/wp-content/plugins/super-forms/uploads/php/files/v35i4juebf6p7atdo9tjjridtd/75222682515.pdfIn PDF document text
- https://braintreeclinics.com/app/webroot/img/files/zurogedokemaxapex.pdfIn PDF document text
- http://erulingua.hu/uploads/content_files/files/tawif.pdfIn PDF document text
- http://uniondeautoescuelas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cc8f9fbd2f1---29649406036.pdfIn PDF document text
- https://www.adoz.cz/ckfinder/userfiles/files/26430749397.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=factorizacion+por+suma+y+diferencia+de+cubos+ejercicios+resueltosPDF 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_off0000dbe0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDBE0 | 17612 bytes |
SHA-256: d3577453013a992d3cf0c2447fee76b05af09b17ae92b66e975c471ffcffb9d6 |
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font_01_sfnt_off000108c0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108C0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000120d7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x120D7 | 11304 bytes |
SHA-256: 13a6df98cd3432f7e3d76c734925502bdbc0a7746a9a50cde3a514b7bcba49fd |
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