MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links, many pointing to compromised CMS upload directories, suggesting a link farm designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to deliver a secondary payload or phishing content. No scripts were extracted, but the presence of multiple suspicious URLs hosted on compromised sites is a significant indicator of a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9934
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.risingstars.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1613398eae7b83---fixom.pdf
- http://uzks.hr/upload/datoteke/rilafemafexedusefar.pdf
- http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/afa9b984fdff51c5b5adeb8e3c94f738/54192218030.pdf
- https://www.jemelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ecd3807dbe---78416600683.pdf
- https://aquariumfargo.com/wp-content/plugins/super-forms/uploads/php/files/f15fbd0d68bd160b3cc9762ba27e23b8/piwitupowipizeleji.pdf
- http://savvyais.com/userfiles/file/fudipiw.pdf
- https://yifff.se/userfiles/file/12408853269.pdf
- https://europacreativaeuskadi.eu/files/galeria/files/xiwar.pdf
- http://krevue.cz/UserFiles/File/38450032090.pdf
- https://temahr.hr/files/81243216783.pdf
- https://motty-etai-sharon.com/files/files/71050922882.pdf
- https://nnkcreations.com/userfiles/file/43987252353.pdf
- http://ashole.hu/UserFiles/File/kirekefubiketegaxile.pdf
- https://songhongresort.com/img/files/lewiwusanitowifiwox.pdf
- https://bunyaminerdemir.com/resimler/files/rofukinomupijotilikexus.pdf
- https://foulardfotografando.it/file/nisokekuveduxirerobozapi.pdf
- http://murzilka.biz/images/uploads/file/21764015295.pdf
- http://vinaaquachem.com/uploads/files/zekogitu.pdf
- http://calisnt.com/uploads/files/vifipopenof.pdf
- https://stcatherine.ac.ug/wp-content/plugins/formcraft/file-upload/server/content/files/1615049e1271b2---zanogakarugo.pdf
- https://xyoaa.org/sites/default/files/files/xurolizutusuwidebis.pdf
- https://beaumont-residence.com/wp-content/plugins/super-forms/uploads/php/files/o4o35i7koborsnjj670ov7tpsm/gadaxi.pdf
- http://szyoujin.com/UploadFile/file/20210918214837283.pdf
- https://seltec.io/images/uploads/files/50495899363.pdf
- https://tanthueviet.vn/img_data/files/81724997373.pdf
- http://www.itidharamshala.in/images/uploads/files/27483103307.pdf
- https://centrumschoolka.pl/photos/file/tuzowapozomuvoxowon.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=blackfish+documentary+watch+online
- 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_off0000ba3b.bin69bb1eb73b680e1c7d025c45b10527fa3167464fb4114694819dad7d7b8869fb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBA3B | 11184 bytes |
font_01_sfnt_off0000d454.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD454 | 16792 bytes |
font_02_sfnt_off0000ec66.bin5a04d43f89dce13879be5115f799921d6b11b6b69a9552f63e415db8e3e85565 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC66 | 17648 bytes |
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