MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a PDF file detected as malicious by ClamAV and an ML classifier. It contains a 'Clipboard command execution lure' heuristic, indicating it instructs the user to copy and paste content into a shell, likely to download and execute a secondary payload. Numerous URLs pointing to potentially compromised WordPress sites were extracted, suggesting a distribution mechanism for further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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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Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LUREDocument tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
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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://www.certificagreen.com/wp-content/plugins/formcraft/file-upload/server/content/files/16096395f4e779---valanex.pdf
- https://www.sanier.pl/wp-content/plugins/super-forms/uploads/php/files/4s8dtpjlsocbk8qref4lp2gno0/zafoxotokul.pdf
- http://mu-rrrc.com/userfiles/file/zosigamotok.pdf
- https://f1com.ge/wp-content/plugins/super-forms/uploads/php/files/91b3e676dd8a2d2a04da38a24f4ed241/14311615794.pdf
- https://www.pal-kont.hu/wp-content/plugins/super-forms/uploads/php/files/8787a0c18dbb7b381afe574735b9241c/romobafewetetafuzutim.pdf
- https://bowenpainter.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d0cc627293c---kugimanene.pdf
- http://trainternational.in/wp-content/plugins/formcraft/file-upload/server/content/files/160acf1c4089e5---denijinupurozov.pdf
- https://www.hagensmarketing.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a61c75b1ee---bonalenofemasotuzuxara.pdf
- https://www.a2zmedical.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607efbe587bb6---tirixolo.pdf
- https://saraelv.no/wp-content/plugins/formcraft/file-upload/server/content/files/16089adc0e10cc---rulira.pdf
- http://botosani.ro/img/uploads/file/93815127137.pdf
- https://amatnieks.lv/pictures/image/sonodawokudasikaf.pdf
- https://coachtourbusrental.com/wp-content/plugins/formcraft/file-upload/server/content/files/160760385765d4---xefagufikufarisew.pdf
- http://imi.vc/upload/files/59195791995.pdf
- https://www.horisunmauritius.com/wp-content/plugins/super-forms/uploads/php/files/df9a854d87bb189ca9dadddc409fe4a2/40446521380.pdf
- https://bkht.vn/userfiles/file/8817754463.pdf
- http://homeopathyhongkong.cn/files/31918932336.pdf
- https://bfull.ru/uploads/files/55898601096.pdf
- http://namadagaskare.ru/ckfinder/userfiles/files/zekexawusixajep.pdf
- http://principessavencanice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bf7d48ea85f---tasumeridazasukubofavamug.pdf
- http://andreagarciam.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ef46a27ed9---33196272731.pdf
- https://cafesca.mx/ckfinder/userfiles/files/40952765575.pdf
- https://www.adilaltinsoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081e4f11782c---fofofetital.pdf
- http://usaoxin.com/userfiles/2021-6/file/sawawe.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=what+is+ft+stand+for
- 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_off0000e013.bin0247ef027d4cb3da4e592821c1947c834a0269cca86d957c3585768c13cb817d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE013 | 17864 bytes |
font_01_sfnt_off00010eb1.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10EB1 | 16792 bytes |
font_02_sfnt_off000126c8.bin1a54ef97cd5e61ea2a717284db11fc2f4acf7e7aaec9132087e0e5c74148a337 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x126C8 | 10264 bytes |
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