MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Numerous heuristics fired, pointing to the PDF acting as a link farm, directing users to various websites hosted on potentially compromised or disposable infrastructure. The embedded URLs suggest a phishing or scam attempt, likely disguised as legitimate documents to trick users into visiting malicious sites.
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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Clickable URI points to raw IP address medium PDF_URI_IP_LITERALPDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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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://nomylo.ru/uplcv?utm_term=building+construction+illustrated+4th+edition+pdf+free PDF link annotation
- https://www.growxponential.com/wp-content/plugins/super-forms/uploads/php/files/94theg8gqp2k3k8rd26hjqah9o/22999516997.pdfIn PDF document text
- http://104.156.58.56/~web2inbox/wp-content/plugins/formcraft/file-upload/server/content/files/1607c5c5d005f6---lipafinebosogi.pdfPDF link annotation
- http://www.sunargrup.com.tr/wp-content/plugins/super-forms/uploads/php/files/q27a4di1kjb9teriqc20j9dfn1/dewapima.pdfIn PDF document text
- http://dmn.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1608905feab8f9---wipaxabopesatawakunolo.pdfIn PDF document text
- http://redwoodpwr.com/wp-content/plugins/super-forms/uploads/php/files/ojtiltftnf6oaesic6sonl4i15/zupowomo.pdfIn PDF document text
- http://metisentry.net/ckfinder/userfiles/files/keteruferiwal.pdfIn PDF document text
- http://mientaytourist.com/uploads/files/kizibovemabenekexu.pdfIn PDF document text
- http://earthtalismanjewelry.com/clients/b/b2/b27d4d76c51cd35ccef873a204118430/File/luwifoxesovuwuxojeb.pdfIn PDF document text
- http://classtool.info/upload/files/1134933709.pdfIn PDF document text
- https://die-elke.de/cms/elke_page_files/file/fojavizisejojelanejufuva.pdfIn PDF document text
- http://ronaldtan.nl/images/photo/larudogurajifilonedez.pdfIn PDF document text
- http://pvsystreports.com/wp-content/plugins/super-forms/uploads/php/files/v07snk3vrlil483s7tasrrt651/14737295414.pdfIn PDF document text
- http://anbao.vn/uploads/userfiles/file/45766903821.pdfIn PDF document text
- http://195exim.com/datas/files/73041800951.pdfIn PDF document text
- https://fatheragneliti.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa26ebc1561---67433027052.pdfIn PDF document text
- http://dok-vo.ru/userfiles/file/31712263954.pdfIn PDF document text
- http://alexlunacoach.com/img/editor/file/24376872833.pdfIn PDF document text
- https://shen-su.eu/gfx/userfiles/files/57273538040.pdfIn PDF document text
- http://andreagarciam.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a41703329a7---48492420491.pdfIn PDF document text
- http://podhoru.cz/userfiles/file/zesilebawabe.pdfIn PDF document text
- http://beiwendq.com//data/attachment/file/4088795471.pdfIn PDF document text
- http://auto-spec.ca/fck/file/8656007418.pdfIn PDF document text
- https://alusol-kw.com/ckfinder/userfiles/files/68218315486.pdfIn PDF document text
- http://angel-conference.org/upload_fck/file/2021-8-14/20210814164819946786.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_off0000d0a1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD0A1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e8b8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE8B8 | 11132 bytes |
SHA-256: 92faad76f58ee5ece5798decf4816e4e26f56a7138aa412aafe5fb72e47a41ee |
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font_02_sfnt_off00010275.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10275 | 16600 bytes |
SHA-256: 06eeb5dc4975784f5c71a05a9a949279a6f98640aee8281f38a0b0a8ad0b35ea |
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