MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and ML classifiers indicated a high probability of maliciousness. Numerous heuristics identified the document as a link farm, with many external URIs pointing to potentially compromised or disposable hosting. The embedded links, such as 'https://archism.ru/uplcv?utm_term=youtube+video+downloader+app+free+download+for+android', suggest a lure for users to download malicious software or visit phishing sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9827
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://archism.ru/uplcv?utm_term=youtube+video+downloader+app+free+download+for+android PDF link annotation
- https://goodline.by/userfiles/file/tagew.pdfIn PDF document text
- http://langyupharm.com/upload/files/78670449499.pdfIn PDF document text
- http://lakshimi-kaatsu.com/user_data/packages/default/imgfiles/66261298699.pdfIn PDF document text
- https://ocvirapuato.com.mx/wp-content/plugins/super-forms/uploads/php/files/eb1147cd83d63115b6f954c5c06016d5/pubipuki.pdfIn PDF document text
- http://kemmurad.com/webroot/img/files/91407659513.pdfIn PDF document text
- http://perilatomsk.ru/ckfinder/userfiles/files/merimuvalagivujavofofum.pdfIn PDF document text
- http://hotelbasantresidency.com/uploads/saxoguzenozego.pdfIn PDF document text
- https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131fde8ad9c2---mokawupumidufer.pdfIn PDF document text
- https://www.darrellstuckey.com/wp-content/plugins/formcraft/file-upload/server/content/files/161456f197e7ee---favefazizap.pdfIn PDF document text
- http://wish-pharma.com/upload/files/51317240265.pdfIn PDF document text
- http://lexprikson.com/admin/style/images/userfiles/file/wutibinewilukonowela.pdfIn PDF document text
- https://creationstationdance.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613fd55188f07---fujubokagamo.pdfIn PDF document text
- http://ekopaczka.pl/imgbrama/files/54127880076.pdfIn PDF document text
- https://store-connector.com/_upload_bilder/_filemanager/file/37866638524.pdfIn PDF document text
- https://cengilli.com/icerik_images/file/41758157951.pdfIn PDF document text
- http://ned.ru/uploads/files/1335789647.pdfIn PDF document text
- https://chokysitohang.com/Uploads/userfiles/files/24579148107.pdfIn PDF document text
- https://oknoplus-omsk.ru/wp-content/plugins/super-forms/uploads/php/files/6b2cf39a4fcaf84a668c891c9e9080bd/xuxosa.pdfIn PDF document text
- http://cocoal.com/uploads/file/58331040783.pdfIn PDF document text
- http://agisma.ru/files/pages/files/zavovalamiwexolifazumuz.pdfIn PDF document text
- https://hatinhjobs.com/upload/files/54528572429.pdfIn PDF document text
- https://ferado.vn/userfiles/file/tugasixiwoxafedarero.pdfIn PDF document text
- http://sake-tori.com/images/library/File/bulukubesuxowululop.pdfIn PDF document text
- http://novosib-sport.ru/ckfinder/userfiles/files/kotizenegolevelefagefet.pdfIn PDF document text
- http://hzyixiangchem.com/upload/files/fatiraj.pdfIn PDF document text
- https://k-barrierfree.com/FileData/ckfinder/files/20210905_D00A39E18D511D66.pdfIn PDF document text
- http://rubella2.integra-sh.com/userfiles/file/juzokasidibejadoj.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_off0000c0e3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC0E3 | 10700 bytes |
SHA-256: 66e549d909833ab5beaa4d4c130e1f3278a196c6ec1cf77898c89cd963a281f1 |
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font_01_sfnt_off0000d959.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD959 | 16824 bytes |
SHA-256: 8b02449a310dc7e135d69b1ebb35f47d82b592357ec7c3c604eed12fc32fde67 |
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font_02_sfnt_off0001042a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1042A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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