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 ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, directing users to multiple compromised websites and disposable hosting domains, which is a common tactic for phishing or distributing further malware. The presence of numerous unknown URLs suggests an attempt to obscure the ultimate malicious destination.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://bak.vn/upload/files/siwexibodijuzejibeti.pdf In PDF document text
- http://holzbau-napetschnig.at/wirojarova.pdfIn PDF document text
- http://appartementslisa.it/an3_Uploads/file/9096758602.pdfIn PDF document text
- http://strap.sk/uploads/files/jukudad.pdfIn PDF document text
- http://directartdeal.com/uploaded_files/userfiles/files/14110117144.pdfIn PDF document text
- http://adhdadvisory.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130af974d82f---xiramuromunokufosa.pdfIn PDF document text
- http://dwallacelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/raxofalemakulo.pdfIn PDF document text
- https://globalybm.com/ckfinder/userfiles/files/1631193646.pdfIn PDF document text
- http://www.magicapro.it/wp-content/plugins/formcraft/file-upload/server/content/files/161326b8a4acc4---88868376400.pdfIn PDF document text
- http://kunbot.com/upload/files/8295011597.pdfIn PDF document text
- http://xn--80aatg4aaaddkhfhbf3evf.xn--p1ai/ckfinder/userfiles/files/gebinemiwopubotopojuf.pdfIn PDF document text
- https://ceilford.org/wp-content/plugins/super-forms/uploads/php/files/b7319f7e2c768aa29ac126f0a89832ca/89457359426.pdfIn PDF document text
- http://cafegreenwichvillage.com/uploads/files/97601122631.pdfIn PDF document text
- http://flagrant-desir.com/userfiles/file/mereno.pdfIn PDF document text
- http://minhtoangalaxyhotel.vn/app/webroot/files/ckfinder/files/86435140710.pdfIn PDF document text
- http://aptekarynek.pl/zdjecia/fck/file/32775898103.pdfIn PDF document text
- http://jessie.vn/images/ckeditor/files/7604052204.pdfIn PDF document text
- http://puntolinea.org/userfiles/files/polexul.pdfIn PDF document text
- https://thebottombillion.org/business_school/uploads/file/noboleluxilelozi.pdfIn PDF document text
- http://sloplast.com/userfiles/files/goroduweg.pdfIn PDF document text
- https://abriganature.centralcms.cloud/galeria/files/13310202041.pdfIn PDF document text
- http://fabiocaronearchitetto.com/userfiles/files/nazovukogofogudu.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=how+to+move+pictures+from+phone+storage+sd+cardPDF 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_off0000dd9f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD9F | 17612 bytes |
SHA-256: 83792263bcfdbe48038b812ca6504f35c544abac4885a72923455aea15b1fd78 |
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font_01_sfnt_off00010b20.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B20 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012337.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12337 | 11264 bytes |
SHA-256: d24416b28a14f23a62da3cd1171975d23133e17d70471d1371474d84780d5dcf |
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