MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a link farm pointing to multiple domains, many of which appear to be compromised WordPress sites hosting PDF files. The 'SE_PASSWORD_ARCHIVE_LURE' heuristic indicates the document likely instructs the user to open a password-protected archive, a common tactic to bypass gateway security. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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://detector-billetes.com/Imagenes/file/96313923231.pdf
- http://israel-aliya.com/wp-content/plugins/super-forms/uploads/php/files/b95efda57b77592c66747b104b9b436a/kogifutozisogubiratuji.pdf
- http://thanhlamresort.vn/wp-content/plugins/formcraft/file-upload/server/content/files/160a3087e4e77c---rodurubumirugokudav.pdf
- https://inchiriereelicoptere.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16071bf1cad8f8---remodosivirakopogejade.pdf
- http://luingpyrex.cz/foto/Image/file/ximaxufemulidemixuzutumox.pdf
- https://alasclub.gr/neuro/ckfinder/userfiles/files/40445256284.pdf
- https://k9-warrior.com/wp-content/plugins/super-forms/uploads/php/files/9jrts9q4t7q2ipee1a4ff84ajc/99461081493.pdf
- http://franklcalabreseattorney.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/mazabowu.pdf
- http://quatanggiabao.com/images/uploads/files/pezazegagulivi.pdf
- http://www.patricktennis.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16077ffbc96ad9---milorumivavuti.pdf
- https://www.wikiwebagency.it/wp-content/plugins/super-forms/uploads/php/files/dfd6c12abc0e4318a733fac02f59bad3/jobinu.pdf
- https://binhruamuinanobac.com/wp-content/plugins/super-forms/uploads/php/files/3bb5k9pued4mpofrtl1vdr1ha1/91170082005.pdf
- http://kindervakantieweekdeurne.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16074f7a288a3a---tokavapokosu.pdf
- http://mirembeestate.co.ug/wp-content/plugins/formcraft/file-upload/server/content/files/160840bcef3e3e---23575866990.pdf
- https://study-go.info/wp-content/plugins/super-forms/uploads/php/files/4539a587eb8536d4d7cddd96a0b93846/69183598400.pdf
- http://poorclarescork.ie/images/91675229922.pdf
- https://pass-eco-energies.com/ckfinder/userfiles/files/gaminera.pdf
- http://mahlkoenig.nl/app/webroot/files/userfiles/files/68733218855.pdf
- https://celovechurch.org/wp-content/plugins/super-forms/uploads/php/files/05c31892b97e33bebff6d37719d0ec21/gasetasoj.pdf
- https://adepotcustom.com/UploadFiles/file/20210430011600157.pdf
- https://www.frankcapassoandsons.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087409539e7f---2780753912.pdf
- https://adm.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/88fa07f32bf630686209ad4412a37ef9/vowuf.pdf
- https://internationalmedia.com/userfiles/file/suxoborutavigitoduzamo.pdf
- http://backupcenters.com/userfiles/file/fokumolabijadefibeko.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=bleeding+out+of+both+nostrils
- 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_off0000f230.binebbe043c674712335ee70566a9976adc84124c2703b43a633b3f3eccac4ca482 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF230 | 16844 bytes |
font_01_sfnt_off00011e02.bin7a1416ccc7744bfdd3505705e54901a63ddc4fdde9800a37327e149167067fd1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E02 | 10764 bytes |
font_02_sfnt_off0001367c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1367C | 16792 bytes |
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