MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains embedded JavaScript and numerous URLs, many of which point to compromised CMS uploads or are part of a link farm hosted on disposable domains. These elements suggest the PDF is designed to lure users to malicious sites, likely for phishing or to download further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://philabc.ru/uplcv?utm_term=how+to+find+mean+in+statcrunch PDF link annotation
- https://pellevah.com/upload/files/gitakujiwemabuxexobuxiti.pdfIn PDF document text
- http://ednak.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f09dba6ca0---mipaxebogekoji.pdfIn PDF document text
- http://anhuicrew.com/upload_fck/file/2021-10-2/20211002154809604642.pdfIn PDF document text
- http://ohmytour.kr/FileData/ckfinder/files/20210924_2E0D00498033698A.pdfIn PDF document text
- https://anbuadidravidarmatrimony.com/ckfinder/userfiles/files/79345330252.pdfIn PDF document text
- http://touristclub.in/userfiles/file/tuwetigijujoviwinutu.pdfIn PDF document text
- http://www.artefuoricentro.it/js/lib/ckfinder/userfiles/files/samegugox.pdfIn PDF document text
- http://modra-skola.cz/userfiles/file/630528181.pdfIn PDF document text
- http://xn--3e0b556bhrbowi6undva.com/ckupload/files/kigopomipigixatu.pdfIn PDF document text
- https://baglab.pl/galeria/file/5301569265.pdfIn PDF document text
- https://equator-maritime.com/userfiles/file/zegivekuxoko.pdfIn PDF document text
- https://hizlipin.com/calisma2/files/uploads/51941898008.pdfIn PDF document text
- https://ph2020.org/ckfinder/userfiles/files/mepopobuvizonoridewowe.pdfIn PDF document text
- http://corporatiegids.nl/uploads/files/78987019309.pdfIn PDF document text
- http://garage-fuji.jp/js/upload/files/16559304162.pdfIn PDF document text
- http://kozelskadm.ru/files/uploads/files/97690599767.pdfIn PDF document text
- https://bentzendesign.se/wp-content/plugins/formcraft/file-upload/server/content/files/161417dca88d95---9264177427.pdfIn PDF document text
- http://www.yourhealthyourchoice.org/wp-content/plugins/formcraft/file-upload/server/content/files/161359ed36e5a7---zojogu.pdfIn PDF document text
- http://sbairs.com/datas/files/75778680600.pdfIn PDF document text
- http://hitecds.com/userfiles/file/sonavi.pdfIn PDF document text
- https://forkidsvietnam.vn/wp-content/plugins/super-forms/uploads/php/files/ho05kbq17jd68e0g2j1itde5n8/1862706419.pdfIn PDF document text
- https://vdbergelectro.nl/wp-content/plugins/super-forms/uploads/php/files/fe54eca69541ee1ef13e079f2f6f8f3f/45652689348.pdfIn PDF document text
- http://15441707.com/data/board/file/20210911084625.pdfIn PDF document text
- https://marjoyunlar.com/calisma2/files/uploads/wuvotukumus.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_off0000b43f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB43F | 10872 bytes |
SHA-256: 929010568e4a0cbe5806a60bf7ec64e380ab0a88e25c9549bb0724ae73fb5417 |
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font_01_sfnt_off0000cd2e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD2E | 16232 bytes |
SHA-256: 3173a592cefe11cbe0cf3e92411576ac3f199f0dff7080757ddca7d9be4c3cba |
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font_02_sfnt_off0000f5d3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5D3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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