MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics indicate the PDF acts as a link farm, directing users to multiple external URLs, some hosted on compromised CMS platforms. The presence of numerous URLs, including one with a 'remote download app' UTM term, suggests the primary goal is to redirect users to potentially malicious content or facilitate further infection.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
Heuristics 6
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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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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://krisoc.ru/uplcv?utm_term=mi+remote+download+app PDF link annotation
- https://jeevadhara.org/work/london/userfiles/file/44475889067.pdfIn PDF document text
- http://jr-bang.com/uploadfiles/20210902011331.pdfIn PDF document text
- http://anabakorea.jp/userfiles/file/minobewafika.pdfIn PDF document text
- https://ryokanclub.com/FileData/ckfinder/files/20210918_B719AD1A29D47473.pdfIn PDF document text
- https://www.focus.mu/wp-content/plugins/super-forms/uploads/php/files/a210037bfe20731709b1b752da81c9a4/10359150881.pdfIn PDF document text
- https://etre-cheval.fr/Applications/MAMP/htdocs/etre%20cheval/news_pix/file/94202443983.pdfIn PDF document text
- http://kadet-ck.cz/pic/file/77669626341.pdfIn PDF document text
- https://binhruamuinanobac.com/wp-content/plugins/super-forms/uploads/php/files/7d3d23k8fclpk5lrt240ovi07k/3664401911.pdfIn PDF document text
- http://vongtaygiay.net/media/ftp/file/bikafokepulakesim.pdfIn PDF document text
- http://forglass.sk/userfiles/file/62994056072.pdfIn PDF document text
- https://educhina.mn/editor/files/guxez.pdfIn PDF document text
- https://iwanbim.iwan.co/userfiles/files/vexuguzotulekagawar.pdfIn PDF document text
- https://gulfcans.com/home/madarmun/public_html/gulfcans/images/bulk_images/files/43329332068.pdfIn PDF document text
- https://ristovski.mk/public_html/upload/userfiles/file/8718440988.pdfIn PDF document text
- https://duragloss.pl/userfiles/file/vobububanifuwezo.pdfIn PDF document text
- http://busankid.com/webfiles/board/file///rexepipiditivezesakelokum.pdfIn PDF document text
- http://westfallassociates.com/documents/file/20127729641.pdfIn PDF document text
- http://xn--b1agaa2anfqdp.xn--p1ai/ckfinder/userfiles/files/91490639534.pdfIn PDF document text
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/161318628beba9---73047582166.pdfIn PDF document text
- https://alquimia.in/admin/fckeditor/editorfile/27010489503.pdfIn PDF document text
- http://felixefontesadvogados.com.br/ckfinder/userfiles/files/wafesigujukovujefowowi.pdfIn PDF document text
- http://imobilestore.de/userfiles/file/wenipo.pdfIn PDF document text
- https://www.andeanskyline.com/wp-content/plugins/formcraft/file-upload/server/content/files/161375c546ab9d---wozapikasimuvajifed.pdfIn PDF document text
- http://soeurs-scjboran.fr/soeurs/upload/files/96525738833.pdfIn PDF document text
- https://kaemsp.org/upload/editor/file/32730253411.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_off0000b495.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB495 | 14612 bytes |
SHA-256: bb605cb90f95d5f89f61f47d1e5efd7b9415d963ffb0a83f8aec368f3a7ec352 |
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font_01_sfnt_off0000d96c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD96C | 10464 bytes |
SHA-256: 066b231d4f39b58e791361c932084336625a903d9625f3b950959caa6f8a6e6a |
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font_02_sfnt_off0000f130.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF130 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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