MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs, many pointing to compromised CMS upload directories or disposable hosting, indicating a link farm designed to redirect users. ClamAV and ML classifiers flagged this PDF as malicious, specifically as a phishing trojan. While no scripts were explicitly extracted, the nature of the URLs and the detection suggests a phishing or malware distribution attempt, likely delivered as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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://archism.ru/uplcv?utm_term=high+%26+low+the+worst+watch+online PDF link annotation
- https://aguiapromocional.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161330f8dc7ce5---bumapunusagoxepikesa.pdfIn PDF document text
- https://g55net.com/webpagebuilder/ckfinder/userfiles/files/96812199115.pdfIn PDF document text
- https://irepairplus.nl/app/webroot/files/userfiles/files/59880034787.pdfIn PDF document text
- https://ooo-kenk.ru/userfiles/file/79444038917.pdfIn PDF document text
- http://grafosaleservice.cz/images/fck_editor/file/wokewizolozojamivona.pdfIn PDF document text
- https://pielinks.com/UserFiles/file/49611403358.pdfIn PDF document text
- http://nghiencuuykhoa.com/uploads/userfiles/file/80717531349.pdfIn PDF document text
- https://sacc-la-chaux-de-fonds.ch/fichiers/file/fopopipavuv.pdfIn PDF document text
- http://obraz-tlt.ru/userfiles/file/88427780244.pdfIn PDF document text
- http://vektor-bezpeki.com/userfiles/files/68191298033.pdfIn PDF document text
- http://tythb.com/uploadfile/files/sivabumituvifakoxexopemav.pdfIn PDF document text
- http://youngshiny.com/userfiles/file/1631514097.pdfIn PDF document text
- http://cdkuysuujk.handysociality.com/upload/files/28179111791.pdfIn PDF document text
- http://theprofitnesstrainers.com/userfiles/file/gasoronamomopofi.pdfIn PDF document text
- https://castilloexterior.es/ckfinder/userfiles/files/dagaz.pdfIn PDF document text
- http://holzbau-napetschnig.at/39954378134.pdfIn PDF document text
- https://hopefor.today/wp-content/plugins/super-forms/uploads/php/files/72dc7120a2b1c9a8d2c00b14e89c6dc7/rimeb.pdfIn PDF document text
- http://etenindex.nl/images/uploads/33739462411.pdfIn PDF document text
- http://tcihk.com/userfiles/64477720668.pdfIn PDF document text
- https://youkuvpn.com/upload/files/20850593334.pdfIn PDF document text
- http://gaia-onlus.org/userfiles/file/kaxunemujulereparulunir.pdfIn PDF document text
- https://portsidestrategies.com/wp-content/plugins/super-forms/uploads/php/files/4ca577f8e2b6812c4c09df40d1ec6510/79914783876.pdfIn PDF document text
- https://suhrsmad.dk/wp-content/plugins/formcraft/file-upload/server/content/files/161315625cad14---mexasoxafazu.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_off0000c026.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC026 | 18048 bytes |
SHA-256: ed9d6b8ea8ff55154d15f0c578273c6176ba54a176291d33980c6333fc1b2d81 |
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font_01_sfnt_off0000ee40.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE40 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010656.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10656 | 9440 bytes |
SHA-256: e25b8f8a45b6b109a7f57f375a30d8fb3c254e3aad489a6276554f960d78496a |
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