MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links pointing to compromised WordPress upload directories and other potentially malicious sites, suggesting a link farm or redirection mechanism. The PDF's structure and the presence of external links strongly suggest it's used as a lure, likely for phishing or to deliver further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9822
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://fietenhaardenenkachels.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a2938fabb8a---93794378676.pdf
- https://dangeloremodeling.com/nbloom/fckuploads/file/66126971864.pdf
- https://chamsocmuihong.com/wp-content/plugins/super-forms/uploads/php/files/07mv8of7k21tf05g0r3ns7hsbi/36307263978.pdf
- https://www.charityweiss.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607ffc67a1340---fopusudodufowuji.pdf
- http://teraval.cz/res/file/gosusojanerovimok.pdf
- https://finances-canada.com/wp-content/plugins/super-forms/uploads/php/files/bbf0efadef501d4e326c246efb7e3c4b/49347058121.pdf
- https://urbanlivin.lu/userfiles/files/94376004127.pdf
- https://www.temsilcisitesi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a55cf6e9706---26651424155.pdf
- http://botanicgardenscafe.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160b81b5dcda32---kowebozepidoseroduzal.pdf
- http://cartopack.com/Images/file/wadeduterafipapovof.pdf
- https://thejinglelab.com/wp-content/plugins/super-forms/uploads/php/files/fm5it7j3bps0rkl85v0tjh61ks/gifebojebifibadifepusi.pdf
- https://giolog.biz/images/bulk_images/files/22132052376.pdf
- http://www.veronicaneal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/160ba56de734cc---fefemivinerewig.pdf
- https://ltgtrends.com/wp-content/plugins/super-forms/uploads/php/files/4a277982874834ea2bfdd665efd5617d/5879424649.pdf
- https://www.projectorrentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608633d22fed1---73961890493.pdf
- https://seataclightingalaska.com/wp-content/plugins/super-forms/uploads/php/files/cd7f3fdffde5231721c369857d3c6f93/jofewesixawiladunaja.pdf
- http://hzdsbg.com/uploadfile/1622021525.pdf
- http://accessiblevehicleservices.com/userfiles/file/87168553464.pdf
- https://mosoptagro.ru/wp-content/plugins/super-forms/uploads/php/files/a8cc5c794aeba7ecc236ebcecca0662c/77481306099.pdf
- http://stylist.in.ua/wp-content/plugins/formcraft/file-upload/server/content/files/160c725134c13c---vebuvuruzisakosifu.pdf
- https://transport-vehicules.fr/userfiles/file/rulegafoluferiza.pdf
- http://salukool.ee/upload/userfiles/file/jusizugakerunujowu.pdf
- https://www.parkgest.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160b3046476764---gerugogim.pdf
- https://semineebrasov.ro/printuri-fi/files/taserosis.pdf
- https://coachtourbusrental.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b7a7de3a8e---33038785678.pdf
- http://4reality.cz/userfiles/files/vakujuresofedijonako.pdf
- https://bistro-8.com/wp-content/plugins/super-forms/uploads/php/files/8a8b7be7c885e4046db35053906d23b7/86703610036.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=a+hitchhiker%27s+guide+to+the+galaxy+42
- 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_off0000fd1d.bin16ecb0a503b92beeefb216dc1551bacc3d3b9397508b543b120467d8263c33de |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD1D | 11168 bytes |
font_01_sfnt_off00011766.binc02daa3570abb209b7322a52475ba5f5596c0cd955a178e3d319cd76ad96d5a9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11766 | 17272 bytes |
font_02_sfnt_off00014475.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14475 | 16792 bytes |
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