MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links pointing to compromised CMS upload directories, suggesting a phishing or malware distribution scheme. The PDF structure and embedded URIs are indicative of a link farm designed to redirect users to potentially harmful 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://www.charityweiss.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606ee18eadae6---jatifirovinew.pdf
- https://cabsfromheathrow.com/userfiles/file/32861730894.pdf
- http://queuemanagementsystems.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094d1ac85deb---12005587472.pdf
- https://sunarchegypt.com/userfiles/file/63344921705.pdf
- https://webtraffic.ch/wp-content/plugins/super-forms/uploads/php/files/vncnnfsuh6s0c3c5182n465vjh/bewet.pdf
- https://1sis.com/wp-content/plugins/formcraft/file-upload/server/content/files/160948aceab3d0---dumorisivun.pdf
- https://floorco.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/c7a495c218dae339bf15645e037357ea/petuposegowasunowovag.pdf
- http://abapaposentados.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608aaca49f9b9---65344993813.pdf
- https://bamor.org/userfiles/file/6684180100.pdf
- http://www.rolstoellift.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f0cdbc9b57---63533103378.pdf
- https://www.accidentinjurylascruces.com/wp-content/plugins/super-forms/uploads/php/files/op2u1bn6bfjo78lc3p34a0a3l2/rizugutenuw.pdf
- https://whitelightdesign.com/wp-content/plugins/super-forms/uploads/php/files/f77df7c4ffb19b11444dc1e8e488b083/15781224202.pdf
- https://xn--64-mlcufjjaii0l.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/8db87f79daee0c906e9dd3d22bba0eda/mabigelazelagenomosoz.pdf
- https://marciasmithconsulting.com/wp-content/plugins/super-forms/uploads/php/files/153f497d21bc15f7581951bf3f7b57a7/tadazifopidabisa.pdf
- http://asustainable.com/global/file/pireketolekekupib.pdf
- http://jgbt.us/pds/userfiles/files/nozevuruf.pdf
- https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074f78160687---93295308471.pdf
- https://inchirierielicopter.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160b078ead8818---bojag.pdf
- https://polinagerz.ru/wp-content/plugins/super-forms/uploads/php/files/m5jua2vdl28hl1fkehqqjltidd/miteraboxugopusiku.pdf
- http://allnatureint.com/userfiles/file/75668789103.pdf
- http://sts-logistika.ru/wp-content/plugins/super-forms/uploads/php/files/09c0626b74bd3136ce4264b67256b322/gixanuwodopugalinoto.pdf
- https://www.amiunaorchestra.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1606f3ea4c19ae---lanorajenarufotefodupoluv.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=computer+networks+systems+approach+5th+edition+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_off0000ff30.bine807fd63e4e8c832db8e5ad10cf5f4cf67ecc7dfb7c8792cd2beddf2db3cedea |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF30 | 17160 bytes |
font_01_sfnt_off00012c0b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12C0B | 16792 bytes |
font_02_sfnt_off00014422.bin3ae5327442cf83711681e937669d2596f901b65f551c6f231822094576839b0f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14422 | 11396 bytes |
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