MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links pointing to compromised WordPress upload storage and other disposable hosting sites, suggesting a phishing or malware distribution scheme. The PDF structure and embedded URLs are consistent with techniques used to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://archism.ru/uplcv?utm_term=construction+change+order+process
- https://acgroupenterprise.com/userfiles/file/98364717972.pdf
- http://www.laterveer-biesenbeek.nl/ckfinder/userfiles/files/kikivas.pdf
- http://laiyi-art.com/userfiles/file/80547419325.pdf
- http://www.vivelamusica.es/wp-content/plugins/formcraft/file-upload/server/content/files/16084763f82068---pizeteresesoxidilolonedub.pdf
- https://semut73.com/contents//files/zudawunalorafib.pdf
- http://instandee.com/Images_upload/files/sufojeraxukok.pdf
- https://nuregio.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a5e53b156af---saxaxezexemajadazemux.pdf
- http://www.contectrade.hu/fckfiles/file/77916877888.pdf
- http://vce34.ru/attachments/file/supujakozor.pdf
- http://www.tenniscanberra.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160d005394a4a2---57893547190.pdf
- https://freedomtampons.com/wp-content/plugins/super-forms/uploads/php/files/45983b5e6ad93d4fa7977ea9ddc14498/16578253661.pdf
- https://www.gml.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609920c426419---78713484133.pdf
- https://avantkart.com/wp-content/plugins/super-forms/uploads/php/files/gh4f5dpa12ud7c22lpte8hpl2b/69137165678.pdf
- http://www.psstrecno.sk/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc8cd4d37b---51453228610.pdf
- http://fructusartis.com/i/File/70208741286.pdf
- https://www.frankreich-ferien.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160a912bc395f0---57925653510.pdf
- http://tamilannuaire.com/var/www/vhosts/vps296430.ovh.net/tamilannuaire.com/images/file/97498955418.pdf
- http://www.teeintact.com/admin/fckeditor/editor/filemanager/connectors/php/img/file/kosizogewigodogakajugu.pdf
- http://kadh.kr/bobod/upload/file/91215061049.pdf
- https://www.hontoys.com.au/wp-content/plugins/super-forms/uploads/php/files/l07dds0agc0iviraiq04uabk1l/jotakupolanilamov.pdf
- https://jaunimodienos.lt/wp-content/plugins/super-forms/uploads/php/files/lunlrroh617er02rd4cf46edtj/75445138812.pdf
- http://www.cargeacrew.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160946684b5b10---99262978347.pdf
- http://elsekmont.eu/userfiles/file/xixivaxagiji.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_off00010595.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10595 | 16792 bytes |
font_01_sfnt_off00011da7.binace2b7152cbc8fef84156b2c26f1a25d9011010e5adc962466f59b7b6a7523b8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11DA7 | 17520 bytes |
font_02_sfnt_off00014b3d.binb67940490ebb7de3efa12721d9e97c4e0f14bacbaa7b15d2c50eab266670588a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14B3D | 10876 bytes |
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