MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. It contains numerous URLs, many of which point to compromised CMS upload storage or are hosted on disposable domains, suggesting a link farm designed to distribute malware. The presence of external URIs and link farms strongly suggests the document is a lure to download further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
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://nomylo.ru/uplcv?utm_term=fundamentals+of+investment+management+10th+edition+pdf+free+download PDF link annotation
- http://chaitraglaze.com/uploads/viwevezerosekirel.pdfIn PDF document text
- http://basyapiemlak.com/yukleme_klasoru/userfiles/file/83562256972.pdfIn PDF document text
- http://prestopc.it/upload/file/74934997929.pdfIn PDF document text
- https://drticket.ir/basefile/drtiketcom/files/69946439044.pdfIn PDF document text
- http://52fotki.ru/ckfinder/userfiles/files/24478396938.pdfIn PDF document text
- https://retta-bg.com/userfiles/71073581350.pdfIn PDF document text
- https://www.sistemkabin.com/ckfinder/userfiles/files/90386610438.pdfIn PDF document text
- https://taiwancy.com/app/webroot/userfiles/files/18939885068.pdfIn PDF document text
- https://sasalidayanisma.org/uploads/file/67417512165.pdfIn PDF document text
- https://www.cdsale.org.au/application/third_party/ckfinder/userfiles/files/guripakofu.pdfIn PDF document text
- http://fanti-fitness.pl/uploads/assets/file/votumakurafige.pdfIn PDF document text
- http://vinmexindia.com/uploads/dasobonewonilazabog.pdfIn PDF document text
- http://tgtech-auto.com/userfiles/file/gomodiruwobazivamod.pdfIn PDF document text
- http://lilit-realty.com/wp-content/plugins/super-forms/uploads/php/files/v5786lak9178ol7f2itqe12933/zodezibopenamubatowuki.pdfIn PDF document text
- http://dinobajka.pl/Upload/file/35675918902.pdfIn PDF document text
- https://hinodanang.com/uploads/image/files/zelemabokijolepudoja.pdfIn PDF document text
- http://bbmeti.it/userfiles/files/ginatodajudijaj.pdfIn PDF document text
- http://brcassociati.com/userfiles/files/vowewijivogovuv.pdfIn PDF document text
- http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/467b0idjaovv6lgsugo9r134k1/xefigiwibexulapagijetu.pdfIn PDF document text
- http://boulderdivorcelaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080f9dae7e21---36073130748.pdfIn PDF document text
- http://sspvjd.com/FileData/ckfinder/files/20210725_631793CD9A56EED5.pdfIn PDF document text
- http://superplasticizer.cn/d/files/2793442005.pdfIn PDF document text
- http://bartuceviri.com/userfiles/file/17022715810.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_off0000f4b6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4B6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010ccd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CCD | 11348 bytes |
SHA-256: b48791c61870b3476ce368b527f158279f335fdf23527fc6851a1d11fb66ecc1 |
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font_02_sfnt_off00012729.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12729 | 19640 bytes |
SHA-256: 1d1e6d518d99a3e8953236e39a8564aa71c372c1e7b67bc7848438bf4041a714 |
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