MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised or disposable hosting. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a non-clustered link farm on disposable hosting, and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' suggests links to compromised WordPress upload storage. These elements strongly suggest the PDF is designed to redirect users to malicious sites, likely for phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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 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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://pistant.ru/uplcv?utm_term=android+diablo+game
- http://obkladlazby.cz/userfiles/file/tonepunafed.pdf
- https://jhservice.net/imagenes/galeria/files/91396291556.pdf
- http://www.tsahimmongol.com/uploads/images/files/83007664503.pdf
- http://perles-del-beya.com/userfiles/file/mevasujerivum.pdf
- https://drnanemilk.com/tctt/sites/aaa/file/lerolobajubibejebavuji.pdf
- https://augsburger-dartliga.de/uploads/file/soxenedexewedisite.pdf
- https://bela.geekers.tw/upload/file_folder/file/71370059900.pdf
- http://queuemanagementsystems.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613502f2813e2---perizag.pdf
- http://www.mostex.sk/files/articles/file/14442588265.pdf
- http://www.iuoelocal870.com/kaizen/ckfinder/userfiles/files/sokugesuvitod.pdf
- https://imad0c0.com/js/ckfinder/userfiles/files/13748029246.pdf
- http://theshop24.com/userfiles/file/49321776992.pdf
- https://www.iieng.org/editor/ckfinder/userfiles/files/1554965605.pdf
- http://trevelci.ru/ckfinder/userfiles/files/56646407939.pdf
- https://hankilfood.com/upfile/files/7028405545.pdf
- https://giraffeng.net/infodaily/gen-ckfinder/userfiles/files/60247613578.pdf
- https://ozsersogutma.com/upload/files/89741967461.pdf
- http://ryukatsu.com/userData/board/file/47955653625.pdf
- http://nek.ua/wp-content/plugins/formcraft/file-upload/server/content/files/16140913c373ef---68209965443.pdf
- http://aven.su/userfiles/file/42410777355.pdf
- https://ketgate.eu/wp-content/plugins/super-forms/uploads/php/files/aa80095c33bce5965a6e7d7b2ed18e43/43326652628.pdf
- https://mlspoland.co/files/file/60874299108.pdf
- 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_off0000b08e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB08E | 16792 bytes |
font_01_sfnt_off0000c8a0.bin2986a3ffc66bf6e9594addba6ab2832779524500ec85a6c7a416d3bd2dbd924e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC8A0 | 16728 bytes |
font_02_sfnt_off0000f317.bina9481bc9597940d6b983b7dbab276bb8caa92f97dd6b4d8e38570097adb40b3b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF317 | 10448 bytes |
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