MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by multiple heuristics as malicious, including a high-confidence ML classifier and ClamAV detection. It contains numerous links to external websites, many of which are hosted on disposable domains or compromised WordPress installations, suggesting a link farm designed to redirect users to malicious content. The presence of PDF_URI and PDF_SEO_DISPOSABLE_LINK_FARM heuristics indicates a deliberate attempt to create a deceptive link structure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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=wifi+manager+apk+download
- http://satakantaresort.com/user_img/files/74798523485.pdf
- http://leaguengn.com/userfiles/file///17930560190.pdf
- http://yonezawanet.jp/units/24250/zcycom/files/bokogavaka.pdf
- https://protrialse.eu/files/files/89330652356.pdf
- https://groupunsur1.com/contents/files/62484233651.pdf
- https://pgp-puh.hr/fck_media/file/wirizufizabaramutoju.pdf
- http://nagyberki.hu/sites/default/files/fck_uploads/file/rovojubu.pdf
- http://gesundheit-im-blog.de/userfiles/file/59237574733.pdf
- https://www.penyembuhanholistikreiki.com/wp-content/plugins/formcraft/file-upload/server/content/files/161372413227bd---xaviluzo.pdf
- https://5ky13lu3-1251.com/contents/files/zubediwimati.pdf
- http://cameragiaminh.com/upload/files/roxevigixizusafiki.pdf
- https://www.mnogotrop.com/ckfinder/userfiles/files/52058690867.pdf
- https://novinfasteners.com/userfiles/file/52899527598.pdf
- http://megamento.com/_UploadFile/Images/file/bajoro.pdf
- https://theshamrockpublecco.it/file/87859740963.pdf
- http://maschimaurizio.it/userfiles/files/nidatanexisulavuvof.pdf
- http://densayhongngoai.com/uploads/userfiles/file/53150266521.pdf
- http://homeopathyhongkong.cn/files/putepunasizeberutaxinoge.pdf
- http://integrotech.pl/zdjecia/file/95991078917.pdf
- https://thehouseproduction.net/file/jabusugubakuga.pdf
- http://www.bluewhaleline.com/image/upload/File/buferijegusatipujifesop.pdf
- http://dossalas.com/wp-content/plugins/super-forms/uploads/php/files/bb413dfdef802aadd89b5da2ca05c7ef/7768561597.pdf
- https://psychotherapie-dr-albrecht.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613bd35b860cd---41137892501.pdf
- https://lacgl.org/upload/editor/file/pokoninutavijokiwokajanug.pdf
- http://15881588.com/ckupload/files/gajakotasadijijorulef.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000dab9.binc23a5996c17d5feb1081a4a8614c49ea18ac3b035fb1b681127a13ac2566e5b5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDAB9 | 17696 bytes |
font_01_sfnt_off00010830.bin6d503b6ff62335c25c18ed4d989cd61ac075945c0483ccaf7dc3b79457de7250 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10830 | 10744 bytes |
font_02_sfnt_off0001209f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1209F | 16792 bytes |
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