MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm, with multiple URLs pointing to compromised CMS uploads and disposable hosting, suggesting a phishing or SEO poisoning campaign. The embedded URLs and the nature of the heuristics strongly suggest the document's purpose is to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://drafthe.ru/uplcv?utm_term=android+instal+apps+on+sd+card PDF link annotation
- https://satellietgroep.nl/userfiles/files/71596966704.pdfIn PDF document text
- https://narellesastro.com/userfiles/files/kovegiketexaged.pdfIn PDF document text
- https://matao.ro/app/webroot/files/userfiles/files/gonupijare.pdfIn PDF document text
- https://www.chauffeur-prive-nice.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16133ba3c7429a---65406030709.pdfIn PDF document text
- http://botosani.ro/img/uploads/file/99187174489.pdfIn PDF document text
- http://oxigensupplies.com/shipinc/userfiles/files/lisawonise.pdfIn PDF document text
- https://shaplaconsulting.com/app/webroot/ckfinder/userfiles/files/rebifovagewa.pdfIn PDF document text
- http://oroblupiscine.it/userfiles/files/65768615930.pdfIn PDF document text
- http://elmbbq.com/uploads/files/70058526181.pdfIn PDF document text
- http://safetruck.gr/images/file/24539868379.pdfIn PDF document text
- https://siltri.com/fck_upload/file/54715768270.pdfIn PDF document text
- http://gurolmumcu.com/userfiles/file/29132784041.pdfIn PDF document text
- https://kuni.ro/app/webroot/files/userfiles/files/tewejifixolatoxafabudan.pdfIn PDF document text
- http://sunnyten.net/userData/board/file/37536377460.pdfIn PDF document text
- https://o2opr.co/userfiles/files/79985475549.pdfIn PDF document text
- http://isspskola.lv/userfiles/files/50083442282.pdfIn PDF document text
- http://www.telsercom.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ed6ac8c17f---42630733874.pdfIn PDF document text
- http://www.siphonicflowmandiri.com/upload/files/37056253510.pdfIn PDF document text
- http://sh-ruiyangcpa.com/userfiles/file/2021-9///2021914929432864.pdfIn PDF document text
- http://2m-m.eu/userfiles/files/396306191.pdfIn PDF document text
- https://chungcungoaigiao.vnpec.xyz/uploads/files/82992695114.pdfIn PDF document text
- http://goldenstarhotel.vn/images/uploads/files/kiripovinumoxakep.pdfIn PDF document text
- https://pr-dienst.ch/file/82169952858.pdfIn PDF document text
- http://synowka.pl/galeria/file/fijanozavajunu.pdfIn PDF document text
- https://sumangold.net.vn/wp-content/plugins/super-forms/uploads/php/files/g6radn6q6tmbvphidau74b20u2/20892528341.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_off0000c74f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC74F | 16496 bytes |
SHA-256: fa8c9a23d718c609c513c1827235de9fffc6c6f7bc8bfe4d3f567bb43d24cd7a |
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font_01_sfnt_off0000f1fe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1FE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010a15.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A15 | 10356 bytes |
SHA-256: 25780bb4ae43846e5f4a07044e34eba256ee038021a1170a2ad62530f717c6da |
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