MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains numerous embedded URLs that point to various domains, many of which appear to be compromised or disposable hosting. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' indicate a pattern of using these links for malicious purposes, likely phishing or distributing further malware. The ML classifier and ClamAV detection strongly support the malicious nature of this PDF.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://garglob.ru/uplcv?utm_term=multiple+accounts+app+android
- http://exima.kr/userData/board/file/doxidabuxasake.pdf
- http://www.medicalalliedtraining.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135c94aef52d---88695800137.pdf
- https://www.luxboss.com/ckfinder/userfiles/files/kudadekisazuximube.pdf
- http://bladensburg.abwingsmd.com/uploads/files/lisabemivevogenuxadudazo.pdf
- https://cuisinescartier.ca/upload/editor/file/mamawadivoratodibazudise.pdf
- http://boatmonies.com/uploads/files/viboxumamulorib.pdf
- http://studiotecnicomancini.eu/userfiles/files/fedotirufipu.pdf
- http://njbeihang.com/uploadfile/file///2021091014172845.pdf
- http://drinkandshrink.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1612ed1a9c6d84---87785328394.pdf
- http://sinproval.it/userfiles/files/davupopujoxatukosemijuvok.pdf
- https://study-go.info/wp-content/plugins/super-forms/uploads/php/files/8bdb617c6769b73852778e9504efc251/vomodol.pdf
- https://pasationtravellers.com/root/FCKeditor/file/29344411092.pdf
- http://spalovnachemolak.sk/userfiles/file/98148745122.pdf
- http://gazosilikatnn.ru/uploads/files/20854829756.pdf
- http://innotack.com/userfiles/files/1186663724.pdf
- http://teewer.mn/ckfinder/userfiles/files/xufejebejada.pdf
- http://xlpe.net/Images_upload/files/nemixuguritudoge.pdf
- http://schokoladenbrunnen.de/idata/42568454042.pdf
- https://creativesilhouettes.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16139a95a5b92a---rananakobem.pdf
- https://vialivonica.eu/userfiles/files/tabajopasaregapitefufitog.pdf
- https://maintogelonline.info/contents/files/56378324044.pdf
- https://westhigienia.hu/editor_up/sorotifevojij.pdf
- http://nuk-amro.de/userfiles/file/lajogiwujiwejese.pdf
- https://cuichi177.com/uploads/files/202109081918574894.pdf
- https://adiwirawanbali.com/wp-content/plugins/super-forms/uploads/php/files/3e1bae1bc6fabdb46c880a082a61e7d6/19759454049.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://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_off0000f00f.bina76027c2536577e1990d01ac5e657fff4ce8cd7f85dd2626de3eec9990651c76 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF00F | 10600 bytes |
font_01_sfnt_off00010866.bin62b9bad1d65607917435e43912b7f6dc319c4e1d37b50bf71c02438c69ddbf44 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10866 | 17180 bytes |
font_02_sfnt_off000134bf.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x134BF | 16792 bytes |
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