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 numerous external URIs pointing to potentially compromised or disposable hosting. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall structure suggests it is designed to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
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://catamma.ru/uplcv?utm_term=cidex+opa+solution+test+strips+instructions+for+use PDF link annotation
- http://4seasonstours.in/userfiles/file/81516518764.pdfIn PDF document text
- http://hitecds.com/userfiles/file/63919478899.pdfIn PDF document text
- https://tessuno.com/upload/files/60d67bad7532c.pdfIn PDF document text
- http://chronicles.ae/userfiles/files/68728312583.pdfIn PDF document text
- http://tpdw.pl/userfiles/file/3639585884.pdfIn PDF document text
- http://medicaldistri.com/ckfinder_files/files/dutirib.pdfIn PDF document text
- http://myucmas.com/userfiles/file/51118432946.pdfIn PDF document text
- https://refundsrefunds.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d851b29b29---kamolilerewezejipasatudo.pdfIn PDF document text
- https://aznamaste.com/ckfinder/userfiles/files/59701888290.pdfIn PDF document text
- https://erinmillssmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/fr852adqlo5cdmqu2vp11sjeg1/nelimujujinud.pdfIn PDF document text
- http://homespakistan.net/magzine/uploadfiles/file/tepuxitineveponago.pdfIn PDF document text
- http://projectbudapest.hu/wp-content/plugins/formcraft/file-upload/server/content/files/1608a994e65a22---kokiri.pdfIn PDF document text
- http://www.corazondelsol.es/ckfinder/userfiles/files/10936135762.pdfIn PDF document text
- https://apparel.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/d82fe57c36328a9cbf68e8fddf1a60bb/7122265090.pdfIn PDF document text
- https://mkycc4.com/kycc4.com/userfiles/files/58560999555.pdfIn PDF document text
- https://www.masismarketing.com/wp-content/plugins/super-forms/uploads/php/files/be3bd06d37a11e49dd09390d230fe77d/vilew.pdfIn PDF document text
- http://paintingservicesonline.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160be89ad643c2---4417539861.pdfIn PDF document text
- http://driscollandgibson.com/images/edit_images/file/90990607415.pdfIn PDF document text
- http://kystop.com/wp-content/plugins/super-forms/uploads/php/files/mijvesnloor2iln1pg9g05jdi7/70073600888.pdfIn PDF document text
- http://www.hcibatiment.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160b86d99209d5---noxiropinirewuwetutoki.pdfIn PDF document text
- http://paliukenas.lt/i/File/84163075652.pdfIn PDF document text
- http://baschin-heizung.com/meineBilderAlbertGrundschule/file/60225989061.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_off0000b7ee.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB7EE | 10848 bytes |
SHA-256: e7a57488a30bdb955cd72d5db7e3647468f168a165f47d2231513d531360392d |
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font_01_sfnt_off0000d129.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD129 | 17676 bytes |
SHA-256: 7643224e46e4124f8aa8a056d03c6cb8bdffac864ad9f55c7883fdedadc9ffcf |
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font_02_sfnt_off0000ffe7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFE7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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