MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links pointing to compromised CMS upload directories and disposable hosting, suggesting a link farm designed to distribute further malicious content. The presence of these links and the overall structure strongly indicate a phishing or malware distribution campaign, likely initiated via spearphishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
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 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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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 http://arniestribu.com/campannas/file/tifufujedimafemovep.pdf
- http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/160784fdac1b9f---62881829886.pdf
- https://www.areatransfers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d2d8fd7d1cd---wetazemez.pdf
- http://ambulatorioveterinarioscapindandrea.it/userfiles/files/99793858248.pdf
- https://www.carlosfunes.es/wp-content/plugins/formcraft/file-upload/server/content/files/160c1867a2101f---rivotedig.pdf
- http://reicar.dk/userfiles/file/tuzipidabagujafo.pdf
- http://appletechsolutions.com/userfiles/file/36544013759.pdf
- http://clearlakesd.org/wp-content/plugins/formcraft/file-upload/server/content/files/160798446e5feb---60148497729.pdf
- http://henri-ruch.ch/doc_pub/file/gupurimixabi.pdf
- http://keacg.com/upload/files/26104269620.pdf
- http://lifestyleufa.ru/wp-content/plugins/super-forms/uploads/php/files/2c31619dfbe697e2b9a5710f477b2e5d/puroxazal.pdf
- http://www.ellisrasbetonwerke.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160bd291c2c875---defugofimuzasisalak.pdf
- http://thietbiotovn.com/Images_upload/files/46186549104.pdf
- http://jockmurray.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a7fe3601858---74724129841.pdf
- https://hylyt.co/wp-content/plugins/super-forms/uploads/php/files/354c094a9ba5f6fbdf29f9d159cbc61e/5086804552.pdf
- http://www.argentum.com/wp-content/plugins/super-forms/uploads/php/files/4f8ncen6v6l6l8oevcadpgt3oq/71740188943.pdf
- http://allamericannursing.com/userfiles/file/kokusupedu.pdf
- http://www.peopleoftheheath.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090096c6efce---20837819466.pdf
- http://jorkurojus.com/userfiles/file/zufuxilojoginop.pdf
- https://webmodels.studio/wp-content/plugins/formcraft/file-upload/server/content/files/160acbcc188f3c---75147254466.pdf
- http://bclgrouptt.com/userfiles/file/40546002747.pdf
- http://donghozibistore.com/luutru/files/82668027710.pdf
- https://www.qbuildsoftware.com/wp-content/plugins/super-forms/uploads/php/files/5274d4fec488ca0bbfd80713e8b77ad5/kazopivinuzigaluvexerukin.pdf
- https://www.kiakaha.gr/wp-content/plugins/super-forms/uploads/php/files/dt596of7qqha91iaa0c0nj6r47/80579172220.pdf
- https://slavica.ru/wp-content/plugins/super-forms/uploads/php/files/4019dc99c6c4aaa5e4bbb6745afb2471/62446233756.pdf
- https://kodcomputers.ro/2664/uploads/37061559563.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=extensive+property+examples+chemistry
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00010067.bin51cc3c11345ea38f4fd9ef2186a00d1b75683732b81d5cc636ed24b6ebbd1159 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10067 | 10904 bytes |
font_01_sfnt_off00011982.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11982 | 16792 bytes |
font_02_sfnt_off00013194.bin4fb98d192371e695e8f810092eefd70e50ae08b5c92874e1de86018b1ba63a15 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13194 | 18644 bytes |
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