MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, indicating a high likelihood of malicious intent. Several heuristics point to the document being a link farm, with many URLs hosted on potentially compromised WordPress sites or disposable domains, suggesting a phishing or malware distribution scheme. The presence of a 'download' button lure further supports this, aiming to trick users into interacting with the malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://wastran.ru/uplcv?utm_term=how+to+root+rmx2195
- https://voolabs.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d2096c73e7---30692888765.pdf
- http://ecme.site/2015/vat/upload/files/fanud.pdf
- http://www.brennholz-heinlein.de/wp-content/plugins/formcraft/file-upload/server/content/files/161371e3504e51---97669218708.pdf
- https://sledovani.gpshlidac.cz/www/userfiles/files/gunob.pdf
- https://wic-net.com/userfiles/file/gusipamizoj.pdf
- http://ned.ru/uploads/files/pigikopuvos.pdf
- http://karinameal.com/imgdish/files/58692635148.pdf
- http://clevio.biz/fckUpload/file/zonofomaborigu.pdf
- http://habitat3.eu/userfiles/files/jagazoxovafutu.pdf
- https://bvphcn.bdata.vn/upload/files/59581545816.pdf
- https://www.cifphosteleriayturismo.es/ckfinder/userfiles/files/xerimutaboxud.pdf
- https://fuoriscena.eu/file/87081883042.pdf
- http://www.psychophonie-tarbes.com/ckfinder/userfiles/files/dilawalakodumeluxinewabek.pdf
- http://minhledtran.com/luutru/files/pezugasuxekurigizoxi.pdf
- http://1utilaje.ro/mm/file/11314002684.pdf
- https://radmangroup-ye.com/rgfiles/file/49483414724.pdf
- http://web5gstore.com/Files/files/46078437660.pdf
- http://www.hypnotiseur.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614404ea1d47d---nowususozeseluvofik.pdf
- http://poorclarescork.ie/images/35728427956.pdf
- http://lamardaegu.com/upfile/user/file/79939897132.pdf
- http://asremajazi.com/uploads/files/84363869177.pdf
- http://insuralead.com/userfiles/file/33911127876.pdf
- http://emanuelmlevin.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/89866646243.pdf
- http://getdol.com/page_data/file/64289999632.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_off0000d5e5.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD5E5 | 16792 bytes |
font_01_sfnt_off0000edf7.bina911922c7f66177e9faca2f01c0b1e016c064b3aa0afc91a8b46774d1bd4c276 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDF7 | 17180 bytes |
font_02_sfnt_off00011a8b.bin8c60824cec62980c763d8672ecee56ed421ea5ade79363227706bae91f702ad0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A8B | 10216 bytes |
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