MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple heuristics as malicious, including a high-confidence ML classifier and ClamAV detection. It contains numerous links, many pointing to compromised WordPress sites or disposable hosting, suggesting a link farm or SEO poisoning attack. The presence of external URIs and link farm indicators points towards an attempt to redirect users to malicious sites, likely as part of a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
Heuristics 6
-
ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
-
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.
-
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.
-
External URI info PDF_URIPDF contains an external URL action
-
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.
-
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://krzeptowski.pl/file/3672665864.pdf
- http://sciencevier.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c95e99e7d3---dumapalopokusozelejaxi.pdf
- http://ustunongel.com/image/files/26272096392.pdf
- http://bagumul.com/file_upload/spaw_upload/file/20210518184556.pdf
- http://edu-soft.ru/site/htmlimages/file/57141741670.pdf
- https://satbietthu.com/luutru/files/33435214962.pdf
- https://studiorampinelli.com/file/gatebupanoxegidinoji.pdf
- http://constructionone.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c4050a1c396---58490473171.pdf
- http://chukgoobok.com/files/fckeditor/file/puroduxadisaxabodaninese.pdf
- http://woonhuislift.info/wp-content/plugins/formcraft/file-upload/server/content/files/160920fa6c19ff---wivitadiboxador.pdf
- https://www.e-oswiata.olesnica.pl/ckfinder/userfiles/files/97188575872.pdf
- https://fiscalonline.ro/app/webroot/files/userfiles/files/lonuxudifuz.pdf
- https://www.asahinadigital.com/wp-content/plugins/super-forms/uploads/php/files/g41arfetf6mtvim46g6e1hvkbs/zaminad.pdf
- http://shangrilayunnan.com/ckfinder/userfiles/files/40956240761.pdf
- https://mediabandit.com/wp-content/plugins/formcraft/file-upload/server/content/files/160afb52a4d64c---42176129056.pdf
- https://eetravel.net/file/mefezolafegibawolinozu.pdf
- http://tccsrl.org/userfiles/files/46983338408.pdf
- http://studiophotosfashion.it/userfiles/files/14857318748.pdf
- https://wholisticvibrations.com/wp-content/plugins/super-forms/uploads/php/files/1c0c553b7e8221b9419287ee81066db5/60196146591.pdf
- http://upservice.expert/admin/ckfinder/userfiles/files/27157995468.pdf
- http://dainichiji.com/upload_ckr/files/9902651240.pdf
- https://maintogelonline2.org/contents//files/55627964320.pdf
- http://opalbiosciences.com/wp-content/plugins/formcraft/file-upload/server/content/files/161218580d6af2---maxuvikazokuwewuxorujob.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=4+quadrant+coordinate+grid+worksheets
- 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_off0000d591.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD591 | 16792 bytes |
font_01_sfnt_off0000eda3.bin29bde2ccf8d14336051cca58ecd9dd84e45748214d82c447010f3da6a1b1a18b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDA3 | 17540 bytes |
font_02_sfnt_off00011b10.binc3d06df5a546144ad143cbff0a02592dd75f071739e7d5724118e7c48db2f2f9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B10 | 11008 bytes |
Open this report in the interactive analyzer, or submit your own file for analysis.