MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ClamAV and an ML classifier, indicating it likely exploits a vulnerability or contains malicious content. Heuristics identify it as a link farm pointing to compromised CMS upload storage, suggesting it's used to distribute further malware or phishing content. The presence of numerous unknown URLs reinforces its role as a distribution point.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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://arenda-v-novosibirske.ru/ckfinder/userfiles/files/wugizivosobadon.pdf
- http://maidnheaven.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d1f2fc8a48---91524766398.pdf
- http://backupcenters.com/userfiles/file/zemuv.pdf
- https://tirthmobile.com/wp-content/plugins/super-forms/uploads/php/files/vt30qgjiblfltua3f9ent7caft/zelupotelibej.pdf
- https://www.sabiamente.es/wp-content/plugins/formcraft/file-upload/server/content/files/160d052ba5a5a0---86268098837.pdf
- https://backcountryplayground.com/wp-content/plugins/super-forms/uploads/php/files/06276408bf9384695ebc4974f6e3823e/tamegaxa.pdf
- https://wineart.online/userfiles/file/kesupuzugiko.pdf
- http://nwatchonline.org/userfiles/file/kukezovoxapiw.pdf
- http://lamgi.pl/ckfinder/userfiles/files/gonajetisijufes.pdf
- http://ttmplus.com/userfiles/files/73911467762.pdf
- https://kund-in.com/userfiles/file/wawobokuzotod.pdf
- https://quickonboarding.com/wp-content/plugins/super-forms/uploads/php/files/dbf1654473e4d87397ff568c58abc8ff/19553819201.pdf
- https://sweetestspaparty.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c675cc81ae0---89025301031.pdf
- http://greenmodels.ru/uploads/files/kabodu.pdf
- http://neuragen.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160d74b77418e7---xijoko.pdf
- http://ediljolli.com/userfiles/files/84855777959.pdf
- http://karmand24.ir/basefile/ehotel724ir/files/lajixibofaraja.pdf
- https://mavismanagement.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099d8eddb166---pawefugugulidi.pdf
- http://senseoftourism.dk/userfiles/file/wexupefepajegosipatonenom.pdf
- http://yer-krasnodar.ru/ckfinder/userfiles/files/4128658334.pdf
- http://snookerfootball.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16072e55a1f108---bukarokavakobifojotug.pdf
- http://vtracauto.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ad473e090d---84628900913.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=como+hacer+manualidades+con+carton+corrugado
- 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_off0000dbf7.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDBF7 | 16792 bytes |
font_01_sfnt_off0000f40e.bin1ac8378c9ebd24f5650c0488a0600137f5e1299a5273389c95cb033070fa19f9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF40E | 10948 bytes |
font_02_sfnt_off00010d03.bin57f09d21c830105be7e1e3a0f31ed9a38e0c47a3584486fd005c6ce3204d3622 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D03 | 18724 bytes |
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