MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier indicating maliciousness. The 'SE_CLICKFIX' heuristic specifically points to social engineering tactics, where the document likely instructs the user to execute a command. While no scripts were directly extracted, the nature of the attack suggests it aims to download and execute a secondary payload, potentially via a link farm of compromised CMS uploads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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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ClickFix social engineering attack high SE_CLICKFIXDocument instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
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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://wsp.pl/userfiles/file/gejoxafixusixeluziburaxi.pdf
- https://www.toptalentusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/161408da964798---76753328380.pdf
- https://gccpay.net/wp-content/plugins/super-forms/uploads/php/files/0d5fccbdd9070869395fc6af30dd23c1/towiwamatoronoda.pdf
- http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/crl6pecfng9vcnu3qel9e1gjc7/dobev.pdf
- https://archielectronics.com/userfiles/files/34658053806.pdf
- https://humantouchtranslations.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/16146c43c102d0---64745521433.pdf
- https://everestart.com/images/stories/file/baliwefawatarabelunotut.pdf
- http://bertoniamministrazione.it/bertoni/public/file/dodulevebalogonurizobij.pdf
- http://tykhchem.com/upload/files/40914138637.pdf
- https://siphouse96.com/wp-content/plugins/super-forms/uploads/php/files/0e87ee89e0660a3c1bce34842686b596/zuwak.pdf
- http://uforoi.com/app/webroot/uploads/files/12952701508.pdf
- http://ddaengshop.com/ckupload/files/21317283131.pdf
- https://romalasergroup.com/userfiles/files/9584018068.pdf
- https://liepasmuiza.lv/userfiles/library/penuvolesisedebobijok.pdf
- https://braveathlete.net/geektic/files/lorukevibametarufab.pdf
- http://elesi.eu/fichiers/files/11932869774.pdf
- http://canadianartistic.com/userfiles/file/50340230295.pdf
- https://marciasmithconsulting.com/wp-content/plugins/super-forms/uploads/php/files/276c1a377481691911d1695ae28d6431/53103189283.pdf
- http://mrspk.com/ckfinder/userfiles/files/pamanaj.pdf
- http://farmaciafoglia.eu/userfiles/files/xezuzebexetupitowilu.pdf
- http://clinicaveterinariagussago.com/userfiles/files/76169976367.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=jetaudio+android+review
- 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_off0000fba7.bin1b2d305d257c41ad893a645ae89e9ae2f675a1add11f850624e0854d01d03a1f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFBA7 | 19184 bytes |
font_01_sfnt_off00012d97.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12D97 | 16792 bytes |
font_02_sfnt_off000145ae.bineb05fe397995e29dd3d94b7574a2b14eae18bd4d35bc9f3f4c4cbccf11de4e5b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x145AE | 10272 bytes |
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