MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a malicious PDF identified by ClamAV as Pdf.Phishing.Trojan. It contains numerous embedded URLs, many pointing to compromised WordPress sites or disposable hosting, suggesting a phishing or malware distribution campaign. The ML classifier also strongly indicated maliciousness. No scripts were extracted, but the PDF structure and embedded links are indicative of a phishing lure.
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://crysiq.ru/uplcv?utm_term=right+tricep+twitching
- https://travelworld.ro/userfiles/file/bikavazuwagomekemusofu.pdf
- https://securitydm.rs/slicice/file/xoletepadakire.pdf
- https://www.birdandwildlifeteam.com/wp-content/plugins/formcraft/file-upload/server/content/files/160857adadc322---mozokofoduxeja.pdf
- http://electrogalicia.com/electrogalicia/recursos/archivos/74512117093.pdf
- https://bonafideonline.com.ar/wp-content/plugins/super-forms/uploads/php/files/f76e34d856e4dbc3747200c9aa27c1bd/xigixekutanajujoxe.pdf
- http://cedule-plachty.cz/files/file/rowurolovanofaber.pdf
- http://www.asap-recruitment.net/upload/file/66852134347.pdf
- https://polskieplytki.com/wp-content/plugins/super-forms/uploads/php/files/fd8fc17194c57ea0db203e583799d296/nedizadudegoxina.pdf
- https://www.brightfieldbusinesshub.co.uk/wp-content/plugins/super-forms/uploads/php/files/mp883ri6c64agm4ikp750j7jhg/15360896801.pdf
- https://atlastoursntravels.com/userfiles/file/2383713893.pdf
- http://dangkyidol.com/wp-content/plugins/super-forms/uploads/php/files/k0kmne5pibqqt6s4r9l8n8r4df/35461020844.pdf
- http://www.chinahkcarplate.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e7b682a09b---xupijaj.pdf
- http://thepnguyentran.com/media/ftp/file/36064605158.pdf
- https://www.chinacimctrailer.com/wp-content/plugins/super-forms/uploads/php/files/51f4b3760684e08102232cc376bf53fc/48714191477.pdf
- http://www.davidwoodpersonnel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e14a636bf8e---3551806661.pdf
- https://evocative.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160ac19ed58409---narorut.pdf
- http://muntepa.com/userfiles/files/mitotonajukogutilolikas.pdf
- https://growmytruck.com/wp-content/plugins/super-forms/uploads/php/files/b3cc3a487804ac68767a5f6dbe271ff8/8754583630.pdf
- http://flygarfield.net/userfiles/file/27830740137.pdf
- http://narnivet.com/userfiles/files/guralevix.pdf
- https://pima-alarms.net/slicice/file/61962302312.pdf
- http://averon.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1608905235aa74---tivefukepizekukotekomu.pdf
- https://grahampropertytax.com/wp-content/plugins/super-forms/uploads/php/files/457c72bad2f48839e00b48771054594f/52208981568.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_off0000ebf9.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBF9 | 16792 bytes |
font_01_sfnt_off00010410.binb42c4b56145560a95988fa38242bb3131f3a9e55d675fe62daf57c9b9a94abe9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10410 | 10288 bytes |
font_02_sfnt_off00011b2f.bina2113fa8d8e603c97c8dafab29bca2a5077014d749657e4a88a1c2dd4d32d4db |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B2F | 17380 bytes |
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