MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external URIs and link farms hosted on compromised or disposable domains, suggesting a phishing or malware distribution scheme. The PDF structure and embedded content point towards the use of JavaScript for executing malicious actions, likely to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9911
Heuristics 6
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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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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://oniceh.ru/uplcv?utm_term=famous+astronomers+worksheet PDF link annotation
- http://rethabise.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160d21f0ea6762---86222162818.pdfIn PDF document text
- http://salonlomi.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160a9c14654b1b---vixinogivunikebovinuz.pdfIn PDF document text
- http://iccj.jp/images/uploads/fckeditor/file/55314247005.pdfIn PDF document text
- http://chikatere.com/Upload/files/figufoseb.pdfIn PDF document text
- http://protech.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/160cfed9077e05---wunovilenagedomaku.pdfIn PDF document text
- https://jgmurphy.com/wp-content/plugins/super-forms/uploads/php/files/4edcf99b0b7662dec1472419603dff00/4032825323.pdfIn PDF document text
- https://wcdt.co.th/wp-content/plugins/super-forms/uploads/php/files/tfvmdupuebvv4rooma6faucq9u/24995395005.pdfIn PDF document text
- https://genesisbehaviorcenter.com/wp-content/plugins/super-forms/uploads/php/files/8a5e31b05f758599ba089f14507ccdcb/26547412099.pdfIn PDF document text
- http://socialbomjesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a574b041dab---79132922075.pdfIn PDF document text
- https://wurstfargo.com/wp-content/plugins/super-forms/uploads/php/files/0b2f3d7dbe3e2ca0bc06c0d10f6e814a/30059941804.pdfIn PDF document text
- https://portsidestrategies.com/wp-content/plugins/super-forms/uploads/php/files/7295f3efcaeb049c01b16e02c5d41c69/vitivi.pdfIn PDF document text
- https://cowichanmusicfestival.com/userfiles/file/49396784815.pdfIn PDF document text
- http://miamiwars.pl/wp-content/plugins/super-forms/uploads/php/files/bdf509e060edf4807a426a1966183b35/nemiteremud.pdfIn PDF document text
- http://yuanjen.com/ckfinder/userfiles/files/majuloxanepimovujixepoxob.pdfIn PDF document text
- http://humansharehouse.com/userData/board/file/fuzowi.pdfIn PDF document text
- http://presssimayeshahr.ir/pic/file/xefuvapatinuf.pdfIn PDF document text
- https://www.golddustdental.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090c32a9367e---wufonuxesalu.pdfIn PDF document text
- http://www.lavalledesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c25ea9d16f---wibojojabogukobi.pdfIn PDF document text
- http://www.kidnuri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607bde43c17ce---10397289423.pdfIn PDF document text
- https://bedandbreakfastchia.it/userfiles/file/vejegodezifol.pdfIn PDF document text
- http://bodegaadrover.com/userfiles//imagenes/86987835222.pdfIn PDF document text
- http://furniture83.com/upload/files/gewisipuruweloxesok.pdfIn PDF document text
- https://feldmann.pl/userfiles/file/faziritiwulez.pdfIn PDF document text
- https://areshin.ru/wp-content/plugins/super-forms/uploads/php/files/6fc90161e90202a8e750882dd20c77bd/wabonor.pdfIn PDF document text
- http://mrsinternationalbeautypageant.com/clients/8/8c/8c0f0497d7166b07b5568c04be8084ca/File/49096683278.pdfIn PDF document text
- http://www.contectrade.hu/fckfiles/file/76322794794.pdfIn PDF document text
- https://sellos-mecanicos.com/wp-content/plugins/super-forms/uploads/php/files/29867fe198efcf53ba05bee65ebe2acd/rusajomibiriwibizosas.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_off0000e2f2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2F2 | 16828 bytes |
SHA-256: d4e99793ae40958a276ebd7714bea4dcc479d29b996dd10375bb7abd0090f1ab |
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font_01_sfnt_off00010e88.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E88 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001269f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1269F | 10488 bytes |
SHA-256: 5166508cefc96e5208db5e8ed52e578c20b6c1daae734ea7ae84892108557ea3 |
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