MALICIOUS
156
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 functions as a link farm, containing numerous embedded URLs that point to compromised WordPress sites, likely serving as a distribution point for phishing or malware. The presence of external URIs and link farm heuristics suggests an attempt to lure users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
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://catamma.ru/uplcv?utm_term=icb+business+literacy+textbook+pdf
- https://rfcorporation.net/wp-content/plugins/super-forms/uploads/php/files/c58f5723912e6c1dfc746351a0c73b07/satovasepugukisiveraka.pdf
- https://djhelaly.com/wp-content/plugins/super-forms/uploads/php/files/b2636dca153baff8ea866cb7d5b76e51/jojurapojol.pdf
- https://www.euroservicemilano.it/wp-content/plugins/formcraft/file-upload/server/content/files/160c944e102a05---xepat.pdf
- https://evg-prague.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16070b242bb3d0---97203238524.pdf
- https://intelean.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b58c5363df---zopoxi.pdf
- http://escolacaritas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b9851e01041---ribureku.pdf
- http://veronicanealhome.com/wp-content/plugins/formcraft/file-upload/server/content/files/2/1609808bdd6d3e---kolaberanowegogomebafute.pdf
- http://hsound.ro/images/custom/file/diguleka.pdf
- https://bisnismedsos.com/userfiles/file/98504931402.pdf
- http://amuseonline.com/absite/userfiles/file/nukuvajarowumilapidavozin.pdf
- http://africansafaris-spain.com/FCKeditor/editor/filemanager/connectors/php/connector.php?Command=FileUpload&Type=File&CurrentFolder=%2Ffile/difakipegakelapi.pdf
- https://bor-diing.com/upload/files/58649531814.pdf
- http://geology.ie/wp-content/plugins/formcraft/file-upload/server/content/files/160846c53a2804---lolobavitigakerotimoz.pdf
- http://allegroescrow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160abaaa3969f8---lavejuke.pdf
- https://sip7.pl/autoinstalator/sip7.online/wp-content/plugins/super-forms/uploads/php/files/1b5a52cc7a1951cfd596d3c7902cc8f3/nexovopasagipu.pdf
- http://yatros.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1606d1ffb4b00d---rusufufanuxe.pdf
- https://idfusionllc.com/wp-content/plugins/super-forms/uploads/php/files/0ec0de1a0fc1879538a2c35792c4cbbd/45330931834.pdf
- https://ratsimae.ee/media/contents/file/tumuzepalasis.pdf
- http://atek-ent.com/upload/file/verupikaw.pdf
- http://davisnewfoundlandfamilyreunion.com/clients/60627/File/rofixufasexisukap.pdf
- http://lacyfamilyunity.com/clients/2/20/203fd950dafdada58ea32e7b96f0d147/File/42008836009.pdf
- https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086f2abbe874---nujotumemowivewoximox.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_off0000cc3c.bin4ec3bc1fcabaf22d534bd29714852a4ae8ce318985979baa4c43e072ef0395a6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC3C | 16976 bytes |
font_01_sfnt_off0000f882.binbb9b26701c241c2a920e4ce28f70e48a0ec578cc8ebfe1b728b73ddd1bfe4d09 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF882 | 11112 bytes |
font_02_sfnt_off00011267.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11267 | 16792 bytes |
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