MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous links to compromised WordPress upload directories, suggesting it functions as a link farm or redirector to malicious sites. The PDF structure and embedded links are consistent with phishing or malware distribution campaigns.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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 http://www.peplex.it/wp-content/plugins/formcraft/file-upload/server/content/files/16098d8ed67f94---vijuvelito.pdf In PDF document text
- https://www.reparaciondebomba.com.ar/wp-content/plugins/super-forms/uploads/php/files/cjjsmlvdaodo3nc543rcus6980/46970754903.pdfIn PDF document text
- http://www.ponderosafestival.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074f7667da28---7306571461.pdfIn PDF document text
- http://www.phonefixcomo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ce60293a0d---nebuvutaw.pdfIn PDF document text
- http://ccswcd.com/userfiles/file/19111369818.pdfIn PDF document text
- http://gphs100.com/clients/e/e3/e3ed30f4e85b1ff1e74f61348c82e8eb/File/58083328898.pdfIn PDF document text
- http://beloit1962.com/clients/8/83/8368a4f838dea3176655029ae9e337da/File/wasumegejogegi.pdfIn PDF document text
- https://mithermomix.com.mx/wp-content/plugins/super-forms/uploads/php/files/c2b7a5765b56334eec017dc9393de93e/xemiborowusuw.pdfIn PDF document text
- http://lookkorea.net/userfiles/file/fitizuwabegenag.pdfIn PDF document text
- https://landlorddebtadvisory.com/wp-content/plugins/super-forms/uploads/php/files/r500tom7md9lnp63648klor8o5/68830826627.pdfIn PDF document text
- https://www.mixedclass.com.au/wp-content/plugins/super-forms/uploads/php/files/gmss8gvojane98j6jjbjlpg536/fiwatajokagugevexovidujel.pdfIn PDF document text
- http://campfirewtx.org/userfiles/file/vepovisaf.pdfIn PDF document text
- https://ludifrance.fr/userfiles/file/jamexofupikoxejavufi.pdfIn PDF document text
- https://www.gs-gleichmann.de/wp-content/plugins/formcraft/file-upload/server/content/files/160851077715f5---fasib.pdfIn PDF document text
- https://www.blackandwhite-salon.com/wp-content/plugins/super-forms/uploads/php/files/61db8e77bc487e64c76c4869aedb4ec6/81482895716.pdfIn PDF document text
- https://rotterdampools.com/contents//files/45713905789.pdfIn PDF document text
- http://a-range.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160b842da07420---80684135640.pdfIn PDF document text
- http://smithmurdock.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608800571b647---juwofaxukeraliso.pdfIn PDF document text
- http://schokoladenfontaene.de/idata/41314874866.pdfIn PDF document text
- http://allamericannursing.com/userfiles/file/96275552831.pdfIn PDF document text
- http://mcutech.net/upload/2021/07/file/1625154103307595270.pdfIn PDF document text
- http://dallassymphonyleague.com/clients/1/14/14bb4a025281f1a32078cb68571f7cf3/File/zizewijefe.pdfIn PDF document text
- https://shiphangnhanh.net/uploads/image/files/16570564599.pdfIn PDF document text
- https://ocvirapuato.com.mx/wp-content/plugins/super-forms/uploads/php/files/a18eb7db5aaa2e8d0402f645639fc137/32410470716.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=how+to+get+villagers+to+breedPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f23a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF23A | 17188 bytes |
SHA-256: 44090767ce7dd469097fb9718d55e1bf20d5f684460eb894b627b3ef7ee44431 |
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font_01_sfnt_off00011f38.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F38 | 10604 bytes |
SHA-256: 78620fb6b588b3fb1c6c41ce3890c3119f7aca5eac4cee38a5f387d9dc62bd60 |
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font_02_sfnt_off0001376b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1376B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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