MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file 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 sites and disposable hosting, suggesting a link farm designed for SEO poisoning or phishing. The PDF structure itself does not contain executable content, but the embedded URLs are the primary attack vector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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 http://smithmurdock.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f2a486f460---sumavajaxukukudokap.pdf
- https://cochleartudaskozpont.hufiles/letisafaxubox.pdf
- http://www.inhd.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607bee0c75663---69285807784.pdf
- https://www.abaco-engineering.it/wp-content/plugins/formcraft/file-upload/server/content/files/160caaaeea4dd2---50876520862.pdf
- https://sumangold.net.vn/wp-content/plugins/super-forms/uploads/php/files/drbnqtgu42r12tjsaqqetdgeej/jukikam.pdf
- https://relleno-acidohialuronico.com/wp-content/plugins/super-forms/uploads/php/files/9dce8fff85a9b0929b92e441aab0df4b/49903699704.pdf
- http://richmediahouse.com/admin/uploads/file/29639532585.pdf
- https://minutesnap.com/wp-content/plugins/super-forms/uploads/php/files/f7d516b7b66e9d05dd5dae8807a7813e/48212894277.pdf
- https://www.vigo.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16086aff6d1f1f---59590727993.pdf
- https://theshairpodcast.com/wp-content/plugins/super-forms/uploads/php/files/bafd839a28ab93aefcf645b31643d3dd/vebobubivufowureto.pdf
- http://leap-egypt.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609af00b7c929---32617132933.pdf
- https://www.ltgpartners.com/wp-content/plugins/super-forms/uploads/php/files/80a10279b1f5c13361a6b1cc144b4bda/18011169250.pdf
- http://aaaexpressheating.com/userfiles/file/69340521593.pdf
- https://bringem.de/wp-content/plugins/super-forms/uploads/php/files/511d0e1e269e01c684b0bcfa923941f5/10517592923.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=tomcat+is+an+open+source+web+server+that+provides+a+servlet+container+allowing+you+to+run+java+code
- http://lovewhereyoulv.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/4ed6bdf43e5f5b59fd70310a13a8a822/mifofitoxirejilonupo.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_off00010a8b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A8B | 16792 bytes |
font_01_sfnt_off000122a2.binde5e6a6baea8f5e036130aab0c587ac0c5b375b7b5b7df99e2171384e1d70467 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x122A2 | 11560 bytes |
font_02_sfnt_off00013d7c.bin138ba93f6d9d103e7b2e837c55352091ca784bc9a2ac56929b09dc242291b9c6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13D7C | 17828 bytes |
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