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. Heuristics identified it as a link farm, with many embedded URLs pointing to compromised or disposable hosting domains. The PDF's content, though partially garbled, suggests a lure related to 'Semana laboral de 4 horas pdf gratis', likely a phishing pretext to entice users to click the malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9999
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://vasilii-orlov.fun/wp-content/plugins/super-forms/uploads/php/files/e7d861fc9a1b1aeefb74248da2a8828a/75865589834.pdf In PDF document text
- http://trenermichal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1607c341fa3d2c---51613768606.pdfIn PDF document text
- https://advancedbusiness.co/wp-content/plugins/super-forms/uploads/php/files/62530e4eb4e2277e5bad198406dc7899/zotukibakivotanovone.pdfIn PDF document text
- https://www.sahabatkeluargahomecare.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b9a226bb1e---vudavilogugezutovot.pdfIn PDF document text
- http://hasyo.net/files/file/riboka.pdfIn PDF document text
- http://topcudental.com/img/userfiles/files/24079553681.pdfIn PDF document text
- https://amerismithenterprises.com/wp-content/plugins/super-forms/uploads/php/files/e3441ccc5ed345dd012e7bf852d8d1ce/zilubezixukaf.pdfIn PDF document text
- https://him-home.ru/wp-content/plugins/super-forms/uploads/php/files/385abaffbfd5669152ce1f348b1b2b3d/12290217263.pdfIn PDF document text
- http://timatey.kz/wp-content/plugins/super-forms/uploads/php/files/h3mlepbgano3vshc2denmvmr82/86032894510.pdfIn PDF document text
- http://s-privod.ru/userfiles/file/90972870241.pdfIn PDF document text
- http://animationcoach.com/userfiles/file/pelaritevofadufisotipax.pdfIn PDF document text
- https://swotin.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ce61982af3---97000427569.pdfIn PDF document text
- https://wemservice.com/ckfinder/userfiles/files/goxagujenozevagipubij.pdfIn PDF document text
- https://xn--64-mlcufjjaii0l.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/825dff7212d8e45ce420848643f9bce0/navij.pdfIn PDF document text
- https://topclassgreenery.nl/images/file/gexapomanugan.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=semana+laboral+de+4+horas+pdf+gratisPDF 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e358.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE358 | 5788 bytes |
SHA-256: 5a913f73148dbd4962ff0ad34a2b6c32dc3b5d08fbf3888a15153c3555984da0 |
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font_01_sfnt_off0000f6d7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF6D7 | 11988 bytes |
SHA-256: 573ae50508452ce4dfa34ed663bc35ad435586cdb3d1fa37b88fc90b65503e38 |
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