MALICIOUS
196
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. The file contains a link farm pointing to compromised WordPress sites, likely serving as a lure to download a password-protected archive. This technique is commonly used to bypass gateway security by encrypting the actual payload, which is then likely to be a downloader or dropper for further stages.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
Heuristics 7
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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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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://oniceh.ru/uplcv?utm_term=aerodrome+safety+management+system+manual
- https://www.hausbootgeiseltalsee.de/wp-content/plugins/super-forms/uploads/php/files/93tr5rd66ab8e5l5s3fno427kg/43835887471.pdf
- http://www.northeastmarquees.com/wp-content/plugins/super-forms/uploads/php/files/39a7e7fc50fafcbc28d9b55a60c9ba08/winoroxox.pdf
- https://northstarexecutivesearch.com/wp-content/plugins/super-forms/uploads/php/files/a7027f23903d52d06f1fa1f157ddf5c6/diwegubuf.pdf
- https://maspacientes.es/wp-content/plugins/super-forms/uploads/php/files/1qauskic9q1ndarokongvp2q9c/gasinixawadixomo.pdf
- https://carlojans.com/cms/file/tuviwewodewite.pdf
- http://www.brennholz-heinlein.de/wp-content/plugins/formcraft/file-upload/server/content/files/1610fc5b70da0c---31585485880.pdf
- http://leap-egypt.com/wp-content/plugins/formcraft/file-upload/server/content/files/16115eee8d9e11---sugifexuxanuxiginexubenok.pdf
- https://assurancemauricie.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607580ae7223c---lirovupewu.pdf
- https://www.hdontheroadnapoli.it/wp-content/plugins/formcraft/file-upload/server/content/files/160a26dba3d98b---71710365687.pdf
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a6a97d1d14---29921448571.pdf
- http://aylincinarli.com/fckfiles/file/donizabi.pdf
- https://www.saenger-ohg.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606c91292e1fa---tebuvuwiv.pdf
- http://www.colegiometa.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/1612758f3b802f---pijujipemijumomikati.pdf
- https://scriptdd.com/_file/file/60253200127.pdf
- http://exhibitionchannel.com/upload/1770855040.pdf
- http://championshipsportsrings.com/clients/23492/File/66399693868.pdf
- https://mosallaesf.ir/uploads/ck/files/28576856060.pdf
- http://www.klpreschool.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092e61d5b4eb---muzewiwoxipibifepiwul.pdf
- http://skikk.eu/app/webroot/files/userfiles/files/14226654330.pdf
- https://stoneappeal.in/FCKeditor/file/toxaxug.pdf
- http://gesundimjob.at/images/content/files/duzojaxanetekolobag.pdf
- http://redwoodpwr.com/wp-content/plugins/super-forms/uploads/php/files/o0bemptaq8qoks4l1a41v6s1v6/fuxeratakozagepajuviwa.pdf
- https://villanakarin.com/userfiles/files/pazifikepesetitum.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_off0000c52a.bin305788212dec608aba48c343bc8577e89b8937a0f3e5a9a6ed0e87ae36dc6757 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC52A | 10800 bytes |
font_01_sfnt_off0000ddf0.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDDF0 | 16792 bytes |
font_02_sfnt_off0000f602.binc5c76abb66a814b1605bfe87d5520d96494634ef4ac756973733b4cc7e82cce0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF602 | 16124 bytes |
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