MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by ML classifiers and ClamAV as malicious. It contains a significant number of embedded URLs, many of which point to PDF files hosted on various domains, some of which appear to be compromised CMS uploads. This suggests a link farm designed to manipulate search engine results or direct users to malicious content, fitting the pattern of a phishing or SEO spam campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9967
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://krzeptowski.pl/file/37420424453.pdf In PDF document text
- http://worldofpacifiers.com/editor_uploads/system/files/76825843691.pdfIn PDF document text
- http://dr-onesrl.com/userfiles/files/70326546422.pdfIn PDF document text
- http://2016.letnifestiwal.pl/ckfinder/userfiles/files/zoludofek.pdfIn PDF document text
- https://bladmedyczny24.pl/wp-content/plugins/super-forms/uploads/php/files/b7bc4e871757f3c4ad5890285701489a/voxemuluparoj.pdfIn PDF document text
- http://elsekmont.eu/userfiles/file/92657452395.pdfIn PDF document text
- https://1877painters.com/FCKeditor/file/59000640219.pdfIn PDF document text
- http://koslita.eu/ckfinder/userfiles/files/kabuxetinisikinekimudo.pdfIn PDF document text
- http://amfmeg.org/wp-content/plugins/formcraft/file-upload/server/content/files/16086eb895c3d6---majijarunisadira.pdfIn PDF document text
- http://stolizstekla.ru/userfiles/file/13687484465.pdfIn PDF document text
- https://hunde-katzen.at/soubory/79713072343.pdfIn PDF document text
- https://www.cfo-search.com/wp-content/plugins/formcraft/file-upload/server/content/files/160acbdc9c7f63---xazefug.pdfIn PDF document text
- https://csodamalom.hu/files/files/19658984597.pdfIn PDF document text
- http://ttlengenharia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b3d756e3382---nunixet.pdfIn PDF document text
- https://www.ccps.mx/wp-content/plugins/super-forms/uploads/php/files/b2e6d4fe5be67af6e1f7c90d40196acf/larikovinemezavatokis.pdfIn PDF document text
- http://indecomavo.pl/inc/40306788965.pdfIn PDF document text
- https://razredna-nastava.net/files/sudisabex.pdfIn PDF document text
- http://www.auditsi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a8535bc07a7---jerosi.pdfIn PDF document text
- https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607209ab83ddf---43040065367.pdfIn PDF document text
- http://akicgiyim.com/userfiles/file/83844671937.pdfIn PDF document text
- https://alistairmills.com/ckfinder/userfiles/files/37026373585.pdfIn PDF document text
- https://www.elektrobetrieb-scholz.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607df5acd07a4---27719877969.pdfIn PDF document text
- https://aquaprosmart.com/userfiles/files/gexudob.pdfIn PDF document text
- https://personalloan2u.com/wp-content/plugins/super-forms/uploads/php/files/cca2f5fb01ebc9f5c21aa360a07c1a78/zotavaberujopo.pdfIn PDF document text
- https://www.booster-p.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b945ccb1e66---35936356396.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=maslach+burnout+inventory+questionnaire+scoringPDF 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_off00015942.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15942 | 11068 bytes |
SHA-256: 7c118916aaf593e4da2a19ebf643b4ea3b7e24585414d0f5ddefe43433198e0b |
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font_01_sfnt_off000172be.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x172BE | 20200 bytes |
SHA-256: 6666357bf7f90aa67f48420b61fe57613e926cea23fe8745411541ed1fffc2e8 |
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font_02_sfnt_off0001a4e7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1A4E7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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