MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains an embedded JavaScript stream and a large number of external URIs, many of which point to compromised WordPress sites. These links likely serve as a link farm to lure victims into downloading further malicious content, as indicated by the 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' heuristics. The ML classifier and ClamAV detection strongly support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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 http://eyupsifalibitkiler.com/resimler/files/pulamekeduzok.pdf
- http://dom-nenilovo.ru/wp-content/plugins/super-forms/uploads/php/files/b652b7ec48a3acc0bc1241dffda3b331/mogad.pdf
- http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/a85291sk42hptqoe7fkqt56o35/6489977995.pdf
- http://gfzgt.ch/upload/file/rotawowojidiwofikiwixul.pdf
- https://gaziemirkentkonseyi.com/upload/files/43890180070.pdf
- https://www.prowallpanama.com/wp-content/plugins/super-forms/uploads/php/files/d075ed924cb2e34517360b701e1d831f/gagemadiwibajiraludef.pdf
- http://romento.com/uploaded_files/userfiles/files/46327115644.pdf
- http://puzynowska-kancelaria.com/userfiles/file/7716550605.pdf
- http://kaithompson.com/userfiles/file/33202154927.pdf
- http://mundori.com/js/ckfinder/userfiles/files/mijajozulabe.pdf
- https://tectrongim.com/uploads/files/mamavimewipub.pdf
- http://retco.ge/ckfinder/userfiles/files/ganike.pdf
- http://mishor-uvk.com/uploads/files/kivenebolegolizonatuma.pdf
- http://yuhenganquan.com/userfiles/file/20210908171353_1039240197.pdf
- http://svatba-emi.com/uploads/pages/files/90703190160.pdf
- https://igk-lilienthal.de/downloads/11638597116.pdf
- http://kondicionery-domodedovo.ru/upload_picture/file/42698655412.pdf
- http://triatlonbizuterie.cz/sites/default/files/file/35962748329.pdf
- http://ferramentabelleggia.it/public/file/faladosesabakokokudufalo.pdf
- http://locnuocvietmy.com/Images_upload/files/fisijibubun.pdf
- http://facyt.com.ar/ckfinder/userfiles/files/xujupedoxiniwunemamexevad.pdf
- http://bayanairag.com/uploads/userfiles/files/jefatuvakasajakaba.pdf
- http://nguyenphat.com/public/default/ckeditor/files/rapafekijosapikowapu.pdf
- https://www.l-games.jp/js/ckfinder/userfiles/files/15876331474.pdf
- http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/up8um3haqvgqunpvrsl53uv3u2/xodupoguliwuwojawirawija.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=free+download+hd+live+wallpapers+for+android+mobile
- 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_off0000da47.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA47 | 16792 bytes |
font_01_sfnt_off0000f25e.binb8fe828502f500a6565b88e037e0f11323a7a00e338353b788e301dacf02b6ae |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF25E | 10932 bytes |
font_02_sfnt_off00010b3e.bin7abbeadc8ed103c5d98dc6b6a7f88b26d0f3d2a962891fe04ad7b8638d7c370e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B3E | 17544 bytes |
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