MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. The document contains numerous external links, many pointing to compromised WordPress sites, suggesting a phishing or malware distribution scheme. The presence of multiple PDF_URI and PDF_SEO_DISPOSABLE_LINK_FARM heuristics further supports this, indicating the file's primary purpose is to redirect users to potentially harmful external content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://inwebjor.ru/uplcv?utm_term=valency+of+magnesium+in+magnesium+oxide
- https://propbrains.com/wp-content/plugins/super-forms/uploads/php/files/g5cokks61g2he43qu9qa6rdgi4/47565847862.pdf
- https://wegofa.com/userfiles/file/midowajapaxigiwiwojosowam.pdf
- http://caycanhtuyhien.com/uploads/image/files/10858074816.pdf
- https://boldvision.tv/wp-content/plugins/formcraft/file-upload/server/content/files/1607ca146434f0---minefevigedatojupagabewi.pdf
- http://a2itsolutions.com/chop/multimedia/userfiles/file/67855865814.pdf
- http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/160c2acd72fb75---dudujinufubomubunate.pdf
- http://sciencevier.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b050a3456a1---mepokunomebosubevilapi.pdf
- http://finsura-lifedirect.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160c4e832e2a04---2725380830.pdf
- http://greenld.com/userfiles/bazidosidizofebotikifis.pdf
- http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/8518rujq5mfsmhf3455b66lt21/50468702518.pdf
- https://udachi.co.th/wp-content/plugins/super-forms/uploads/php/files/mh5p7id742eakgtdhne9oe9257/60213914417.pdf
- http://casaatlantida.com/userfiles/file///bavimowuzawuxeraxofinez.pdf
- http://atenngo.com/admin/sites/site/documents/45725412939.pdf
- http://roland-toys.eu/userfiles/file/99899168962.pdf
- http://suacona.com/clients/16856/File/89709058913.pdf
- https://bloomeng.com/uploads/50814045137.pdf
- https://gamletaarnhuset.no/wp-content/plugins/formcraft/file-upload/server/content/files/160c851909f373---nanimun.pdf
- http://acetuitioncentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1609ff1ce55891---49865208124.pdf
- https://holocaustresearch.pl/nowy/photo/file/79028207910.pdf
- http://grandp.ru/userfiles/file/fojowaxojijiku.pdf
- https://izharfoster.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a0cf52d8344---nixagikafotesowodulegib.pdf
- https://mednet.mk/public_html/upload/userfiles/file/18480972256.pdf
- https://donnasalon.ru/wp-content/plugins/super-forms/uploads/php/files/68b092597309591bbc569938eed9b490/dukixuxagige.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_off0000e88f.binbe39b84d37d389a06068abc535d27394a805914484b722e8e0b417f6cc48c14f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE88F | 16796 bytes |
font_01_sfnt_off00011425.bin63e2160d316a101d1389b4d3b96ba6ead21ae02649435c0a000f5f72e9d985eb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11425 | 10908 bytes |
font_02_sfnt_off00012d36.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12D36 | 16792 bytes |
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