MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a link farm hosted on compromised CMS uploads, a common lure for phishing or malware delivery. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' indicates the document likely instructs the user to download a password-protected archive, a technique used to bypass gateway scanning. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to deliver a second-stage payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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 http://flygarfield.net/userfiles/file/28071355541.pdf
- https://borderpak.com/wp-content/plugins/super-forms/uploads/php/files/933c93f83d80158a9793cac4f36907d0/nefuxomitevezofixeguvidix.pdf
- https://flylights.pl/wp-content/plugins/super-forms/uploads/php/files/1r1nhh62chohsq3mhjn39fif4j/55533997663.pdf
- https://controlcert.se/wp-content/plugins/formcraft/file-upload/server/content/files/160a1c78cedda5---vududemanakebanedulilas.pdf
- https://www.tessilgiada.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609fa83d32542---6724366328.pdf
- https://seroinstitute.com/wp-content/plugins/super-forms/uploads/php/files/e53f607a74eed94341110827901954ac/rogirusosipadubawafepe.pdf
- http://profisystem.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1606cca00b9e11---50699056920.pdf
- http://evansmedia.ca/userfiles/file/sutafekamipuxoto.pdf
- https://alnahamgroup.com/userfiles/file/sigerar.pdf
- http://chiangmaicharmingtravel.com/ckfinder/userfiles/files/lisuvigazumawagirunegil.pdf
- https://pet-fashion.ro/mm/file/fitekiduzux.pdf
- http://recamonde.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160ca6777417e1---56113590805.pdf
- http://snookerfootball.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160be4e7042fff---52491493297.pdf
- http://okwecare.com/usr/userfiles/files/gagalokuvuzukugideroj.pdf
- http://saipanbooking.com/FileData/ckfinder/files/20210626_4D354B101DFE856B.pdf
- http://reutlinger.pl/userfiles/file/vonupupoleku.pdf
- https://purpleleafestatebuyers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ac37daa09c---12931959431.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=triplicity+astrology+meaning
- 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_off00010086.bin3d6d3b0396d6050c2dcc55813c288b00db4d5d700729dc4ef654e0dd755d4864 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10086 | 10792 bytes |
font_01_sfnt_off00011969.binf54526ea614bdb3fe55285a69f92505d4e782c9ffaf578ddd0a50b0eda9427b8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11969 | 17732 bytes |
font_02_sfnt_off000147bc.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x147BC | 16792 bytes |
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