MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous external links, many pointing to compromised WordPress sites and disposable hosting, suggesting a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall structure points to a link farm designed to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9893
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://irlanc.ru/uplcv?utm_term=c%23+print+pdf+document PDF link annotation
- http://westernmaki.com/uploads/files/gawom.pdfIn PDF document text
- http://cannamelis.com/userfiles/file/pezurinejopobelupiviluni.pdfIn PDF document text
- https://egyseg.eu/ckfinder/userfiles/files/35629201845.pdfIn PDF document text
- http://www.magicapro.it/wp-content/plugins/formcraft/file-upload/server/content/files/16143350d5159a---bojobatasoba.pdfIn PDF document text
- http://faptvmedia.com/userfiles/file/woduxiwasapuri.pdfIn PDF document text
- https://www.coconutlodge.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613aa7374f135---88282789742.pdfIn PDF document text
- https://kvgrup.com.ua/wp-content/plugins/formcraft/file-upload/server/content/files/1614590a4447f4---96987325368.pdfIn PDF document text
- http://kozszemle.hu/uploads/files/saboroxawuniwaxab.pdfIn PDF document text
- http://fuguchair.com/upfolder/e/files/20210906202205.pdfIn PDF document text
- http://12shio5.com/contents/files/kiriva.pdfIn PDF document text
- https://majubesar.com/contents/files/75436236317.pdfIn PDF document text
- http://teacherandtraining.com/coj_u/KK/userfiles/files/rigavejopolelinetodexojif.pdfIn PDF document text
- http://artmetinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a09a1527e9---10423127411.pdfIn PDF document text
- http://kalmi.ru/upfiles/files/79850721698.pdfIn PDF document text
- http://shyjjc.com/v15/Upload/file/2021912411452707.pdfIn PDF document text
- https://namdolove.com/FileData/ckfinder/files/20210918_6FF841EEBDF4E064.pdfIn PDF document text
- https://sport-jicin.cz/dokumenty/fobupifa.pdfIn PDF document text
- http://kcde.kr/userfiles/file/32363752754.pdfIn PDF document text
- https://toocapen.com/files/jituvo.pdfIn PDF document text
- http://hosteleriayvending.com/ckfinder/userfiles/files/19083834209.pdfIn PDF document text
- https://www.leasing.net.in/ckfinder/userfiles/files/bedikugavom.pdfIn PDF document text
- http://elsped.hu/files/file/zufosujitibe.pdfIn PDF document text
- https://nenmongdangquang.com/upload/files/lexotikedanumub.pdfIn PDF document text
- https://bindazzled.com.au/wp-content/plugins/super-forms/uploads/php/files/08daddc4021d0f3da245727f154db094/32913992022.pdfIn PDF document text
- https://raselapp.com/userfiles/file/57177562757.pdfIn PDF document text
- http://domadoma.cz/userfiles/file/30301783351.pdfIn PDF document text
- 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_off0000b726.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB726 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000cf3c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCF3C | 9104 bytes |
SHA-256: fe4a9ad32d6d12da45ce8861a1e6e511df5579fd33367a5c4d1c9e774d301804 |
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font_02_sfnt_off0000e209.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE209 | 18584 bytes |
SHA-256: c601358fb37106a8e65482c335ff905c595d1a8a3162ba552aff918c028a6a0e |
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