MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. The heuristics reveal that the document functions as a link farm, directing users to multiple compromised WordPress upload storage locations. These links likely serve as a lure to download further malicious content, such as the 'download imo video calling for android' mentioned in one URL.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://abapaposentados.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613cd7262da1d---bibukupubiwivebufe.pdf In PDF document text
- http://cdio.vn/uploads/userfiles/file/7233909565.pdfIn PDF document text
- http://dayou.tw/uploadpic/files/202109101047487835.pdfIn PDF document text
- http://sushibelovo.ru/files/29915179030.pdfIn PDF document text
- http://xn--42cfa4ewb0a0b3fwh.com/imageupload/files/17953872548.pdfIn PDF document text
- https://www.bbmnetlicitacoes.com.br/cms/ckfinder/upload/files/bamumubapijitix.pdfIn PDF document text
- http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/1613b707071e4f---bowolijogujinolaw.pdfIn PDF document text
- http://muacuoi.vn/Pictures/files/terap.pdfIn PDF document text
- http://kcntanduc.vn/img_duhoc/files/39942510154.pdfIn PDF document text
- http://fuhua.tumujike.com/assets/upload/files/202109091058354734.pdfIn PDF document text
- http://mylodge-naoshima.com/images/blog/file/giladigexavigakixeda.pdfIn PDF document text
- http://conhantaoankhanh.com/webroot/img/files/5555503689.pdfIn PDF document text
- http://aaas.handyfriendship.com/upload/files/sujorimabukew.pdfIn PDF document text
- http://manvilastrust-org.bvirani.com/ckfinder/userfiles/files/31592741553.pdfIn PDF document text
- http://seattlebestteriyaki.com/uploads/files/44611854146.pdfIn PDF document text
- http://tuderprogettazione.it/userfiles/files/91959251650.pdfIn PDF document text
- https://myphambambi.com/webroot/img/files/tubelolujovexobenij.pdfIn PDF document text
- http://ketphatthinh.vn/upload/files/38806155063.pdfIn PDF document text
- http://aktifimmo.lu/userfiles/files/vosumilupasovumek.pdfIn PDF document text
- http://kaplanpm.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133d39c62322---13706815988.pdfIn PDF document text
- http://microcement.ua/userfiles/file/kejumolixusideso.pdfIn PDF document text
- http://willtorock.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137daa7e9d50---2457176989.pdfIn PDF document text
- http://tareeapartment.com/user_img/files/fefaderoleras.pdfIn PDF document text
- http://soepcentrale-dekeyser.be/userfiles/file/54484968976.pdfIn PDF document text
- http://rileyillustration.com/images/agency/files/fasexenoti.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=download+imo+video+calling+for+androidPDF 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_off0000e074.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE074 | 17880 bytes |
SHA-256: 36e4af0b1b616bfe17e8681c34c4d9c880a5d7a1fa13082516af40cf64992b48 |
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font_01_sfnt_off00010d78.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D78 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001258f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1258F | 10704 bytes |
SHA-256: 6e1495e25e0fbbf59075b334c28f360a6687f5a1e9a69b64f1460ec0aac1b246 |
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