MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The document contains numerous external URIs and links to compromised WordPress upload storage, suggesting it functions as a link farm designed to redirect users to malicious sites. The presence of embedded URLs and the nature of the heuristics point towards a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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://krisoc.ru/uplcv?utm_term=theme+statement+examples+for+courage PDF link annotation
- https://www.northernillumination.com/wp-content/plugins/super-forms/uploads/php/files/115a93ee2ba57fe17609181322599c3c/rofixute.pdfIn PDF document text
- https://wrd13.com/force/file/28575349659.pdfIn PDF document text
- https://na-nule.ru/wp-content/plugins/super-forms/uploads/php/files/45o16ihpuch92sk75jjrcl9ca7/tewekokeruzijubadupuwe.pdfIn PDF document text
- http://www.tenniscanberra.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16090230916936---81327677942.pdfIn PDF document text
- http://businessvaluationapp.com//fck_files/file/budorujumetezego.pdfIn PDF document text
- http://kinel-hunter.ru/upfiles/file/zutexu.pdfIn PDF document text
- https://sellerflows.com/wp-content/plugins/super-forms/uploads/php/files/1e59852a85722d539af30f879ed6ed31/xazozifaruku.pdfIn PDF document text
- https://www.elektrobetrieb-scholz.de/wp-content/plugins/formcraft/file-upload/server/content/files/160abf5959f08d---kubufigakig.pdfIn PDF document text
- https://lakeshoresmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/djq5ueab5jeq0465vuvq7sfjo5/lilabikilefo.pdfIn PDF document text
- https://www.andimoda.com/wp-content/plugins/super-forms/uploads/php/files/2190ed93577d750227a867459d7d2039/89762716969.pdfIn PDF document text
- http://apcmagon.com/userfiles/9206098919.pdfIn PDF document text
- https://www.digitalsofts.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f7bbd96c559---69087900928.pdfIn PDF document text
- https://www.ventisilva.com.br/ckfinder/userfiles/files/91779127002.pdfIn PDF document text
- https://www.ojchamber.com/ckfinder/userfiles/files/79559160321.pdfIn PDF document text
- http://bycongroup.com/UserFiles/file/55168635884.pdfIn PDF document text
- http://malagi.pl/user-files/fck/file/73133070025.pdfIn PDF document text
- https://www.golddustdental.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b5c1dd24d11---fepazizezik.pdfIn PDF document text
- https://www.kadeavenue.com/wp-content/plugins/super-forms/uploads/php/files/631821654a29f79e4361757b741f26a6/87747486947.pdfIn PDF document text
- http://iaestedresden.de/userfiles/file/5506886039.pdfIn PDF document text
- http://allamericannursing.com/userfiles/file/8497184734.pdfIn PDF document text
- https://www.financedeclined.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1609c5c5672957---64267787221.pdfIn PDF document text
- http://kibbkw.com/uploads/file/leser.pdfIn PDF document text
- http://cetinelektrik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1608ac9fa92497---65906088692.pdfIn PDF document text
- http://babamoleskine.com/files/file/ninumiwaxil.pdfIn PDF document text
- http://botosani.ro/img/uploads/file/28893098394.pdfIn PDF document text
- 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_off0000fe9e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE9E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off000116b5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x116B5 | 11000 bytes |
SHA-256: 6d9cf82caf22b7cfb7343b260ff0aa072483f0d64434fda230bc6eddb159ebc0 |
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font_02_sfnt_off0001302a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1302A | 17112 bytes |
SHA-256: 34129bf8dab1f58e461b77eb411cb52f05e7d23bf7c868f770d70da4a8eb40f2 |
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