MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous external links, many pointing to compromised WordPress sites, indicating a link farm or redirection mechanism. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a phishing or malware distribution lure, likely leveraging a spearphishing attachment vector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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://medvor.ru/uplcv?utm_term=kia+sorento+2012+service+manual+pdf
- https://oknoplus-omsk.ru/wp-content/plugins/super-forms/uploads/php/files/3eacc3ce56f0df0da5feebeb68ebf3e0/fubuf.pdf
- http://headrepublic.pl/images/files/zerafiroxuruji.pdf
- http://avs-market.ru/admin/ckfinder/userfiles/files/nibazorixowut.pdf
- http://frederickfollows.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608f7d138e93b---45144478573.pdf
- https://fleuriste79.fr/ckfinder/userfiles/files/zijuzuda.pdf
- http://conflictfreeelectronics.com/ourprojects/chowki/UserFiles/renuka/file/69098467657.pdf
- http://www.asejnrtigers.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1606e078feede3---56604433247.pdf
- https://casasholidays.com/scgtest/team-explore/uploads/files/86618730355.pdf
- https://linardi.ru/files/file/waposoraxitidodedit.pdf
- http://ebsenglish.net/_UploadFile/Images/file/mupozufuwenem.pdf
- http://aj-logistics.com/stock/userfiles/file/remorininoj.pdf
- https://www.sacproblemleri.com/wp-content/plugins/formcraft/file-upload/server/content/files/160839bd078c72---pogewesijoxal.pdf
- http://apogeeconsultancy.com/upload/files/92848310910.pdf
- https://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d3041e57b1---wonepupuwebipakubi.pdf
- http://ecolservizinettuno.com/userfiles/files/dafawazosivijokajidovukex.pdf
- http://conniecorsentino.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/kegorebuxumuv.pdf
- http://pr-jam.com/ckfinder/userfiles/files/14252223658.pdf
- http://ceroki.com/image/files/55907170656.pdf
- http://hajnysport.cz/FCK_userfiles/file/navukewarisusevudunanegu.pdf
- http://springswellness.net/wp-content/plugins/formcraft/file-upload/server/content/files/1606cd6896209b---384759738.pdf
- http://digivideos.net/ckfinder/userfiles/files/45014499608.pdf
- https://corpusbg.com/files/fck/file/nuzigimututakiraka.pdf
- http://moscowballet.ru/userfiles/file/94931468490.pdf
- http://julieesteban.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cb2ee07fce---62903290314.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_off0000e3e3.bin3ca55864d44b3eba500dc0414e9fc706d20c8d6ab38f432ef44bf7c11f5b575d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE3E3 | 16900 bytes |
font_01_sfnt_off00011023.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11023 | 16792 bytes |
font_02_sfnt_off0001283a.bindd30f033ca268dbe5d17a162ca7677c1980f8c324b4877e6650a5f1fb6f41729 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1283A | 11232 bytes |
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