MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many pointing to compromised CMS uploads or disposable hosting, suggesting a link farm designed to distribute malware. The presence of a visual download button further supports a phishing or malware distribution lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
Heuristics 7
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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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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://archism.ru/uplcv?utm_term=mobomarket+apk+2017 PDF link annotation
- http://hasanmasat.com/ckfinder/userfiles/files/25575552374.pdfIn PDF document text
- https://somogyplusz.hu/files/zogig.pdfIn PDF document text
- http://sunnysolutions.it/uploads/assets/file/vufokirulofad.pdfIn PDF document text
- https://b2bircruise.travflex.com/bot/ckfinder/uf/files/fixemiwuzedobepiwewazod.pdfIn PDF document text
- http://averon.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1613df9309aa7a---45880051288.pdfIn PDF document text
- http://chipgene.com/image/files/20210907_081055.pdfIn PDF document text
- https://eurouniversal.eu/ckfinder/userfiles/files/titiwisifowapinakuduv.pdfIn PDF document text
- http://budka39.ru/files/wojutijajevazuvob.pdfIn PDF document text
- http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/1612f4cba31b49---28784513958.pdfIn PDF document text
- https://plumcourse.com/wp-content/plugins/super-forms/uploads/php/files/01ac22933a9ddd09d429df34e268b937/beribelez.pdfIn PDF document text
- https://www.speeddating.lt/speeddating/ckfinder/userfiles/files/23681660554.pdfIn PDF document text
- https://icoachyou.biz/images/ckeditor/files/64500551306.pdfIn PDF document text
- http://hzdsbg.com/uploadfile/1631912430.pdfIn PDF document text
- http://hanabi-la.com/uploads/files/17117793565.pdfIn PDF document text
- http://www.zywawiara.pl/pliki/36634042179.pdfIn PDF document text
- https://jaunimodienos.lt/wp-content/plugins/super-forms/uploads/php/files/0qjer4pmhapssq4fslrk1rs0od/28801217803.pdfIn PDF document text
- http://oreade-breche.fr/userfiles/file/44831522346.pdfIn PDF document text
- http://www.binghan.my/userfiles/file/99284518006.pdfIn PDF document text
- http://checopharma.com/upload/files/vomet.pdfIn PDF document text
- https://proartgaleria.hu/files/files/padafisizelutavumenasub.pdfIn PDF document text
- https://123natura.com/stockages/files/pogigi.pdfIn PDF document text
- http://energcomb.net/cms_enercomb/sgi_userfiles/userfiles/files/pajifaxazixuz.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_off0000cd82.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD82 | 10572 bytes |
SHA-256: f4bc931a49f2cf5af2bd28bf0f0717a3122ae47193285262788c9540c6aa63b2 |
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font_01_sfnt_off0000e595.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE595 | 18044 bytes |
SHA-256: 228400012d66f13fc2ddbfaced7c808aaff7b30b6fdebee2793fff5143599abe |
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font_02_sfnt_off000114f4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x114F4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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