MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is a PDF with multiple heuristic firings indicating malicious intent, including random URL links and being part of a link farm on disposable hosting. ClamAV also detected it as Pdf.Phishing.Trojan. The presence of numerous external URLs suggests a phishing or malware distribution scheme, likely delivered as a spearphishing attachment. No scripts were extracted, but the PDF structure itself facilitates the attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 7
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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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://chcial.ru/uplcv?utm_term=love+nikki+dress+up+mod PDF link annotation
- https://ikansambel.com/contents/files/pofini.pdfIn PDF document text
- http://xn--h49al71atridzo.com/userData/board/file/sunedexedugokit.pdfIn PDF document text
- https://tavfelugyelet.megujuloenergiapark.hu/admin/ckfinder/userfiles/files/jibafitubo.pdfIn PDF document text
- https://tims.ro/ckfinder/userfiles/files/ritajakutegokefinipipit.pdfIn PDF document text
- https://ita.kru.ac.th/ckfinder/userfiles/files/92214821444.pdfIn PDF document text
- http://xn--lv0az70cxar.tw/uploads/files/202109091552487784.pdfIn PDF document text
- https://bwhe.in/ckfinder/userfiles/files/22114802189.pdfIn PDF document text
- http://keemunblacktea.cn/uploads/file/021042505672.pdfIn PDF document text
- https://accounting789.com/ThImg/file/64380642107.pdfIn PDF document text
- http://cmtsport.com/pliki/1923326861.pdfIn PDF document text
- http://aurora-c.jp/files/files/89262575155.pdfIn PDF document text
- http://xn--9i1b14lwsg1seumdzsx.com/upload/fckeditor/file/55920782790.pdfIn PDF document text
- http://akbarestate.com/survey/userfiles/files/vavukujedabak.pdfIn PDF document text
- http://ambulatorioveterinariovianello.eu/userfiles/files/mapetigojerade.pdfIn PDF document text
- http://starwindows.ie/ckfinder/userfiles/files/pudotibupeberoxoriv.pdfIn PDF document text
- http://transchem-tech.com/Uploadfiles/files/84677071889.pdfIn PDF document text
- http://npi-management.com/ressource/site-image/files/33333906975.pdfIn PDF document text
- http://pazarziraat.com/userfiles/file/dukedeja.pdfIn PDF document text
- http://www.fishandcosolicitors.com/uploads/files/nufebu.pdfIn PDF document text
- http://ip-golubev.ru/ckfinder/userfiles/files/xivijezow.pdfIn PDF document text
- https://mariellatriolo.it/public/file/zokesiwobopukozobodoso.pdfIn PDF document text
- https://christembassyromford.org/wp-content/plugins/super-forms/uploads/php/files/6c99cd6c4a728ffca8819497e27668b1/jagesepivapotuxudi.pdfIn PDF document text
- https://izyskately.ru/foto/ck/files/xexegimogox.pdfIn PDF document text
- http://ottuk-e.org/userData/board/file/xepabopiragowixorulasoli.pdfIn PDF document text
- http://vtracauto.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614296e9e2f91---70219619466.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_off0000d947.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD947 | 19144 bytes |
SHA-256: 2d10ab0c3e35d4f406aa462d3902570275a1d8fde5996380a67d2ce6dd8ac87d |
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font_01_sfnt_off00010ab3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10AB3 | 10460 bytes |
SHA-256: 14c2d003c9bedb377027221e7232f1acbec30c81de961bac70bef46b5f395bf7 |
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font_02_sfnt_off00012266.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12266 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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