MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links to external websites, many hosted on compromised WordPress installations or disposable domains, indicating a link farm designed to redirect users to malicious content. The ClamAV detection and ML classifier strongly suggest this PDF is malicious, likely serving as a lure for phishing or malware distribution. No scripts were extracted, but the presence of external links points to an attempt to redirect the user to a compromised site.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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://cz-synergy.cz/data/file/9194561161.pdf
- https://panelshock.com/userfiles/file/madodofidiwobavedi.pdf
- https://californiaoptionsrealestate.com/wp-content/plugins/super-forms/uploads/php/files/c8d0221316c71a998345df61263e76a8/kogejeva.pdf
- https://alsultantrading.ae/userfiles/files/75222726388.pdf
- http://mindentudor.hu/userfiles/file/xejujuge.pdf
- https://genesisbehaviorcenter.com/wp-content/plugins/super-forms/uploads/php/files/2942a84844b0c814c0a5d8dca6eedf5a/46248599303.pdf
- http://business-plan-capalpha.eu/mbp/upload/images/images/upload/ckfinder/pomarekuxopenabizin.pdf
- http://www.johnknox.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1607a7c3d65c9c---66688064287.pdf
- http://netflor.pl/upload/File/jivefofozadeneb.pdf
- https://www.hauptsache.cc/wp-content/plugins/formcraft/file-upload/server/content/files/1611e6aae93aa6---91450496834.pdf
- https://cartolmania.it/file/jepagupa.pdf
- http://allasclub.com/campannas/file/56331851469.pdf
- http://lagostena.it/userfiles/files/39727985614.pdf
- https://hafa-verein.de/wp-content/plugins/super-forms/uploads/php/files/ce6f23bbef33b02ec80b0cf889f7cdc6/53337026166.pdf
- http://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/e7ec4dceeec15d85a991541a7da72dfa/pefipazukesavopul.pdf
- http://haustechnik-hagenauer.at/ridenonemovepen.pdf
- https://www.reliancecareuk.com/wp-content/plugins/super-forms/uploads/php/files/1f8e6a618f063be115b3879c5bf99c24/xemazawamilugokiji.pdf
- https://kakvkusno26.ru/wp-content/plugins/super-forms/uploads/php/files/b0a64e28d0e42c1af6a4443faf4ec595/buxamalemaw.pdf
- http://dangkydoanhnghiep.org/hinhanh_fckeditor/file/68233258467.pdf
- http://www.sunargrup.com.tr/wp-content/plugins/super-forms/uploads/php/files/hm43lqqdk8s8315n738hug6uu3/worovirafuxuvad.pdf
- http://4seasonstours.in/userfiles/file/58111879998.pdf
- http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/1ljbkk0lnqv302iscdkki2lh54/58151284739.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=vbspu+new+time+table+2018+pdf+download
- https://lapdonline.org/file/33024099644.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_off0000c11f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC11F | 16792 bytes |
font_01_sfnt_off0000d931.bin951d26bd38a438911e0213e8c60d93638b963799a833dd37af8a7f63df9d1453 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD931 | 19340 bytes |
font_02_sfnt_off00010aeb.bincb0cd09b0816dfc76cb49a82e62ce6e8a0336454d95ca838900177ee6e54c649 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10AEB | 11356 bytes |
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