MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous external URLs, indicating a phishing or redirection attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. The presence of malformed streams and link farm characteristics further support this assessment, pointing towards a spearphishing attachment delivery vector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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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Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTHA PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
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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://garglob.ru/uplcv?utm_term=parts+of+a+front+page+newspaper PDF link annotation
- http://otvorene-srdce.sk/userfiles/file/53855358278.pdfIn PDF document text
- http://rsti.biz/files/fck/file/vugosixuvujefibalefamer.pdfIn PDF document text
- https://toppelletmachine.com/d/files/petijadidota.pdfIn PDF document text
- https://tepatsasaran.com/contents/files/10628573879.pdfIn PDF document text
- https://vnycc.com/userfiles/file/rogotefewupuzu.pdfIn PDF document text
- https://michaels-limo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614d804de16bd---jufajawuxoxogi.pdfIn PDF document text
- https://reazfarah.com/ckfinder/userfiles/files/zesujagudilubovowexilaza.pdfIn PDF document text
- http://churchtextile.com/userfiles/file/lopaxenarefonolesumeduna.pdfIn PDF document text
- https://priscar.com/documents/files/14677392292.pdfIn PDF document text
- http://mywayrtk.org/userfiles/file/42258165032.pdfIn PDF document text
- http://zensushialiso.com/uploads/files/zavolajuviruvuga.pdfIn PDF document text
- https://stvorki.ru/files/file/76044666639.pdfIn PDF document text
- https://aykutemlak.com/upload/ckfinder/files/tepufawiredajevokokekiv.pdfIn PDF document text
- http://galluccifaibano.com/userfiles/file/40488628949.pdfIn PDF document text
- http://www.pethouse.es/ckfinder/userfiles/files/ponajusapadevotuvobezato.pdfIn PDF document text
- http://kfoodntea.com/dataroom/file/lizesuriw.pdfIn PDF document text
- https://royal-art.pl/uploads/userfiles/files/sudekex.pdfIn PDF document text
- http://trustarshida.co/cache/fck_files/file/wuwijozigijutofow.pdfIn PDF document text
- http://buyo-g.net/userfiles/file/wewemojilot.pdfIn PDF document text
- https://www.americanapi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614166ed84ae7---69619340024.pdfIn PDF document text
- http://areopag-group.ru/sites/default/files/uploads/vilomaledujibugametaxoki.pdfIn PDF document text
- https://www.eecpowerindia.com/codelibrary/ckeditor/ckfinder/userfiles/files/naxixijetirerofotomeb.pdfIn PDF document text
- http://duancanhotot.com/upload/files/pupudap.pdfIn PDF document text
- http://moje-stranky.eu/userfiles/file/11309782180.pdfIn PDF document text
- http://cuacuongiare.vn/upload/files/53471480787.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_off0000b687.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB687 | 10484 bytes |
SHA-256: d37b6d401553a0029a8f35027cf7bc9be09c5472ef05dfc1f086df7f83256f1a |
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font_01_sfnt_off0000ce98.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCE98 | 15868 bytes |
SHA-256: db3e2ec99868979236b46b0439b0ce3ea26a6eb6153c15d1bbe4db81ad6d543e |
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font_02_sfnt_off0000f682.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF682 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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