MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs, many of which point to compromised websites or disposable hosting, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution. The presence of multiple external URIs and a link farm heuristic confirms the attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://catamma.ru/uplcv?utm_term=sadlier+vocabulary+workshop+enriched+edition+level+f+answers+unit+3 PDF link annotation
- https://pima-alarms.eu/slicice/file/daxawaw.pdfIn PDF document text
- http://pokemom2.com/uploads/files/duzidabavutalowataberuges.pdfIn PDF document text
- http://redskap.ru/userfiles/file/21704222848.pdfIn PDF document text
- http://weddingdove.tw/uploads/files/202109281207395729.pdfIn PDF document text
- http://kondicionery-lubertsy.ru/upload_picture/file/jekamab.pdfIn PDF document text
- http://nguyenthaotech.com/upload/files/88578150815.pdfIn PDF document text
- https://adikkedua.com/contents/files/sivisufopivisuboko.pdfIn PDF document text
- http://studiomanzetti.it/userfiles/files/16158194833.pdfIn PDF document text
- https://neoville.ru/wp-content/plugins/super-forms/uploads/php/files/f9b535399e53104cc12d8bdc9e94f355/zotowufirezijapik.pdfIn PDF document text
- https://parkettworld.com/upload/files/80881212005.pdfIn PDF document text
- http://findingthegrey.com/userfiles/file/86881169229.pdfIn PDF document text
- http://www.viksexteriors.com/wp-content/plugins/formcraft/file-upload/server/content/files/16143482b61166---19805619567.pdfIn PDF document text
- https://yesilkoyluleriz.biz/resimler/files/nogalezil.pdfIn PDF document text
- https://peiitw.com/Upload/ckeditor/files/gipitoforuzixapuvipusi.pdfIn PDF document text
- https://dalnoboy.com/data/filestorage/upload/files/vimogemojugudonef.pdfIn PDF document text
- https://educhina.mn/editor/files/jubel.pdfIn PDF document text
- https://beautydiction.com/ckfinder/userfiles/files/nekozujofaximoxero.pdfIn PDF document text
- https://ilonew.tasksplan.com/userfiles/files/56542686949.pdfIn PDF document text
- https://www.olympusnorge.no/wp-content/plugins/super-forms/uploads/php/files/ecuseo7gr1aft0gubdt6j6s0un/5632388931.pdfIn PDF document text
- http://be-now.pl/userfiles/file/49251384352.pdfIn PDF document text
- https://cyklo-wellness-penzion-palice.cz/content/35938391343.pdfIn PDF document text
- http://zimmerei-possert.at/68951773400.pdfIn PDF document text
- https://milkywayads.com/webroot/img/files/72246648757.pdfIn PDF document text
- http://usa-ex.com/images/blog/file/fikasekokaruwum.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_off0000d56a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD56A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ed7c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED7C | 19532 bytes |
SHA-256: 95bbbc0f1e78c2bcec798cd5cf24d97ca0ecaa3c4947de11d30e99b31f9547c4 |
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font_02_sfnt_off00011fe7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11FE7 | 11564 bytes |
SHA-256: aba08754d87502de6acca3b9829f8fa036f05b706841ec6860f0b324e9f18641 |
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