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. It contains numerous external URIs and is identified as a link farm hosted on compromised CMS uploads, suggesting an attempt to redirect users to malicious sites. The presence of external URIs and the nature of the heuristics indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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://synerhu.ru/uplcv?utm_term=animal+cell+and+its+parts
- https://drainscovers.com/wp-content/plugins/super-forms/uploads/php/files/dfd3b9afcf226b25f962d5594cec5989/90394190325.pdf
- https://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f1ae3094b6---wimobemilavajifowigali.pdf
- http://vetportonaccio.it/userfiles/files/98105257346.pdf
- http://xinyuemu.net/assets/202107/files/20210704114751232288.pdf
- https://relleno-acidohialuronico.com/wp-content/plugins/super-forms/uploads/php/files/cf4e78ab8217ca1244238e92e518ad16/monisezimusizazarumin.pdf
- http://lab4050.com/upload/editor/file/tosanudafa.pdf
- https://flvirginia.com/wp-content/plugins/super-forms/uploads/php/files/5307319a93e1a036f8c273ac89465101/79758877421.pdf
- https://noukos.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160c173fa6d244---polotogiketeg.pdf
- https://betentour.com/sites/default/files/file/13508344250.pdf
- https://www.rath-catering.de/wp-content/plugins/formcraft/file-upload/server/content/files/16099da418e394---11787966748.pdf
- http://suportti.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d6d8744176---lewotijupipudimi.pdf
- http://sportingclubalbinia.eu/userfiles/files/96237976046.pdf
- http://elmiraclassiccountry.com/wp-content/plugins/super-forms/uploads/php/files/tackqq8vg5vt2mri264ntdprv7/28744351779.pdf
- https://ventadeterrenosurbanos.com/userfiles/file/fujoxigedowe.pdf
- http://www.jhannahs.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608582a366615---5396138222.pdf
- https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/c52de94242de45e3954596dde42efefd/gukonaforida.pdf
- http://www.maderas-navarro.com/ckfinder/userfiles/files/9683910647.pdf
- http://rainternacional.com/userfiles/file/xizimawofirokewobabefizo.pdf
- https://cullinanconstruction.com/wp-content/plugins/super-forms/uploads/php/files/loh1ektp7vctrgr7rcjhgm10oe/zapulejakomijuxenaxituw.pdf
- http://firstcuwire.com/file_media/file_image/file/pogazakesefuv.pdf
- http://studiomilano.eu/userfiles/files/63998547226.pdf
- https://www.cfo-search.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607dafb6e1e05---lowiwilazirukagopizeneju.pdf
- http://ulv-fogger.ru/d/files/75895507017.pdf
- http://influences-vegetales.eu/assets/Image/files/5385417035.pdf
- http://superpart.com/files/88356919721.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_off0000c66f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC66F | 16792 bytes |
font_01_sfnt_off0000de86.bine37c45c0972ce6a07f038429d4346fffe1fbe589302aa5195ff2204868a7a39d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE86 | 10536 bytes |
font_02_sfnt_off0000f678.bin8c53de8f329ca7453f994d5bf3424c9eb909f1406faf0aa65714f342131ec409 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF678 | 15828 bytes |
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