MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external URIs and links to compromised CMS uploads, suggesting it functions as a link farm to distribute phishing content or malware. The PDF structure and embedded links are consistent with a spearphishing attachment used to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9840
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://catamma.ru/uplcv?utm_term=keepass+mobile+android
- https://jdbailbonds.com/wp-content/plugins/super-forms/uploads/php/files/41000ea5298d71fc8525bba29a13cb36/69292925389.pdf
- http://miass.realxenon.ru/uploads/files/37148954572.pdf
- http://diamantina-joaillerie.com/ckfinder/userfiles/files/59471174620.pdf
- https://rinducm1.com/contents/files/famugokivediluwut.pdf
- http://www.elstar.ru/uploads/files/35836266521.pdf
- https://bankubezpieczen.pl/userfiles/file/ruvetubake.pdf
- http://chinhsuasolieu.com/media/files/bevikovivamebiwefur.pdf
- http://unixsensor.com/uploads/files/202109121454029811.pdf
- http://teleinwestor.pl/userfiles/file/40246748424.pdf
- http://lindseyderence.com/userfiles/files/ketonarawana.pdf
- https://nestsearch.in/admin/uploads/file/61726576900.pdf
- https://kluchar.net/klucharnet/images/file/83542419226.pdf
- http://chinasoftcore.com/userfiles/file///nifipezakitesarap.pdf
- http://uat2.hkha.com.hk/ckfinder/userfiles/files/fobapanok.pdf
- http://25630638.kad.tw/kads/ckfinder/userfiles/files/mivugavumoluxawej.pdf
- https://almoheetmanpower.com/public_html/userfiles/file/45620930985.pdf
- https://etimes.mn/uploads/files/96933109947.pdf
- http://abwingstop.com/uploads/files/68661173155.pdf
- https://vivaldiroberto.com/img/files/mediafiles/file/6478347207.pdf
- http://hkxhjfc.ltd/uploads/files/20210912173831.pdf
- http://planao.com/ckfinder/userfiles/files/80305580572.pdf
- https://mosoptagro.ru/wp-content/plugins/super-forms/uploads/php/files/a2420d3cd323adef3abd4229ca76dbc0/korafatagilovefi.pdf
- http://regimhotelierbucuresti.com/images/userfiles/17278989438.pdf
- https://www.davidcosz.de/wp-content/plugins/super-forms/uploads/php/files/0ol8rahp2nmr3vhdq3cbgjio7m/sajovukezibesafewo.pdf
- http://spakimthi.com/upload/files/zolozubo.pdf
- http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ce4c806af1---vimorarejilusoxojawokax.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_off0000c618.bin5221e1de67cd849e638160527da5e4e4507de410ed83f665868e63c09fb4d0a3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC618 | 16832 bytes |
font_01_sfnt_off0000f1ac.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1AC | 16792 bytes |
font_02_sfnt_off000109c3.binbacb7fe2d5e685fa567121a841e963dd65017eee163fdd28494daf10553448d9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x109C3 | 10584 bytes |
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