MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous external URIs and links to compromised WordPress uploads and disposable hosting, indicating a link farm designed to redirect users to malicious sites. The presence of embedded URLs and the nature of the heuristics strongly suggest a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://queure.ru/uplcv?utm_term=like+water+for+chocolate+by+laura+esquivel+pdf PDF link annotation
- http://netart.hu/userfiles/file/51675374389.pdfIn PDF document text
- http://czminghe.com/upload/files/81191390980.pdfIn PDF document text
- http://tinavaron.com/ckfinder/userfiles/files/15150520544.pdfIn PDF document text
- https://iqrainternationalschool.org/_assets/files/kapevojewekavitosenir.pdfIn PDF document text
- http://kimsanghun.com/upload/userfiles/file/2021919117110629.pdfIn PDF document text
- http://ducthanhtam.com/uploads/userfiles/file/simuligutodulovoje.pdfIn PDF document text
- http://bsp-plovdiv.org/ckfinder/userfiles/files/jajorudikusamefepidavun.pdfIn PDF document text
- https://cambodiadriverservice.com/userfiles/file/82199423423.pdfIn PDF document text
- http://anshan56.cn/userfiles/file/1631085411680653487.pdfIn PDF document text
- http://ophtalmic-overnight.fr/wp-content/plugins/formcraft/file-upload/server/content/files/161434545882d7---79377854018.pdfIn PDF document text
- https://cruiseship.cruises/wp-content/plugins/super-forms/uploads/php/files/13hr1dpcufv05amkp1qh2m6jij/8490494084.pdfIn PDF document text
- https://clubsecurite.fr/webroot/upload/files/rewojanewododo.pdfIn PDF document text
- http://koreabulk.net/userData/board/file/papezawejutud.pdfIn PDF document text
- http://ivankotov.ru/img/lib/file/jipinimulonajenedafa.pdfIn PDF document text
- http://younewstoday.com/task/userimages/file/82470379743.pdfIn PDF document text
- https://maisonforville.be/documents/file/70047661176.pdfIn PDF document text
- http://nm-union.ru/ckfinder/userfiles/files/peniboxogosifabafabapu.pdfIn PDF document text
- http://scard.vn/app/webroot/uploads/files/77276592280.pdfIn PDF document text
- https://arab-hams.com/Ups/files/kevotabepugifu.pdfIn PDF document text
- http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/eeqdvhln9eqr5hf7fl1av9nig1/68723739348.pdfIn PDF document text
- http://kme-kme.cz/files/file/fabukogo.pdfIn PDF document text
- http://indecomavo.pl/userimg/inc/sazoriwen.pdfIn PDF document text
- http://anhbanglaw.com/userfiles/file/lerumexuposukono.pdfIn PDF document text
- http://studioagronomoserragiotto.eu/userfiles/files/29255297108.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_off0000de73.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE73 | 17552 bytes |
SHA-256: 4eebfbde6896ab8abc99002108b5c089bece68d2df425cb13c7dadf196c1ff46 |
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font_01_sfnt_off00010c70.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C70 | 11312 bytes |
SHA-256: cc1f8419441780bfd532ec07b84193b85c14632ece0b19313c2e58fcecc84276 |
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font_02_sfnt_off000126d6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x126D6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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