MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file is a PDF containing a link farm hosted on multiple compromised WordPress sites, as indicated by the 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' heuristics. The URLs point to PDF files within formcraft plugin upload directories, suggesting a common method for hosting malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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 http://www.optionassurance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160a46f68d59ed---39872615894.pdf
- https://www.acptechnologies.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d9208a423dc---latinobegowababaw.pdf
- http://svenstavik.com/wp-content/plugins/formcraft/file-upload/server/content/files/160802e1d89208---bizexipuworabutapodo.pdf
- https://corpusbg.com/files/fck/file/18743832357.pdf
- http://www.thediethub.in/wp-content/plugins/formcraft/file-upload/server/content/files/160a331e28bcec---lakafa.pdf
- http://thesnowmanicecream.com/ckfinder/userfiles/files/feroxisiriwupivetapilaw.pdf
- http://www.empresasdelimpeza.info/wp-content/plugins/formcraft/file-upload/server/content/files/160b0f09c7de7d---38068342421.pdf
- https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/a9fe99e498524909ee4d2fa462ef6069/6444430842.pdf
- http://goodslib.com/userfiles/files/35981756507.pdf
- http://anhbanglaw.com/userfiles/file/73394947419.pdf
- https://unicornproduction.gr/wp-content/plugins/super-forms/uploads/php/files/ec32c163d1a5c7e203c4482a8c5d248f/12131227794.pdf
- https://www.ltgpartners.com/wp-content/plugins/super-forms/uploads/php/files/e997473c18926c5b0dcedc3c4ca663c8/83666881705.pdf
- http://www.theagentpipeline.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b8c72a33932---zonuzuxako.pdf
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ca81fc3dc4---94248519211.pdf
- http://chixue.com/uploadfile/file/20210604094626.pdf
- http://sllight.ru/design/img/upload/file/63386083779.pdf
- http://fatamorgana.fr/uploads/assets/file/29094153541.pdf
- https://www.energetisch-therapeut-estie.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160bdc0aeb45f4---12219932070.pdf
- https://publicbridge.pl/userfiles/file/fudegadagis.pdf
- http://a-range.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160bc7d294ba42---67582739492.pdf
- https://yziact.fr/wp-content/plugins/super-forms/uploads/php/files/onv1irun70ap78im73t13g4417/53379852426.pdf
- http://unityproductions.com/upload/files/86181270703.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=add+subtract+multiply+divide+integers
- 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_off0000dcbc.binf880640577f4b3ffcf0e384d007601be43c0cc8c2509f286c1d589d818d453c4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCBC | 16724 bytes |
font_01_sfnt_off00010869.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10869 | 16792 bytes |
font_02_sfnt_off00012080.binbc1f963706d40021409186a2991f2d6aa6e089df8764036f6d047fddc94f4f73 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12080 | 11140 bytes |
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