MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 PowerShell
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links to external websites, many of which appear to be compromised CMS upload directories. The 'SE_CLIPBOARD_COMMAND_LURE' heuristic indicates the document instructs the user to copy and paste content into a command-line interface, likely to execute a malicious payload. ClamAV detection and ML classification confirm the malicious nature of the file, suggesting it is a phishing or trojan delivery mechanism.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://synerhu.ru/uplcv?utm_term=cfg+to+cnf+converter
- https://www.webhisto.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1609bfe125910b---65759233191.pdf
- http://geobrofab.com/clients/d/da/da7cd3953015cd63472398095fc1fcdd/File/rewuxela.pdf
- https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/03277ecc0feb38102a3a2273ea5093b5/63490793933.pdf
- https://www.kcequipment.com.au/wp-content/plugins/super-forms/uploads/php/files/6ca9012c96d8faec2d47003f4900be5e/99947397950.pdf
- http://2girlstrippin.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076a94759164---jisinelirowubodib.pdf
- http://www.kreasoft.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160b33b1ca15f5---jimalemijexatedilobibe.pdf
- https://calldidocta.com/wp-content/plugins/super-forms/uploads/php/files/cdf6bf3565127d5ef2f3564c05e2a237/56117303346.pdf
- http://mayfamilycircle.com/clients/5/53/53cd9f4101e72b768929e5daf979c2da/File/nikizekot.pdf
- http://careerhack.net/wp-content/plugins/formcraft/file-upload/server/content/files/1609e2af72e1b8---noregomuribanapapa.pdf
- http://silesiacapital.eu/data/file/33866005834.pdf
- http://spoanalyze.com/wp-content/plugins/super-forms/uploads/php/files/00dd745c6b2f785a11180caa3b8a710e/40916648095.pdf
- http://kraljicabih.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609bf117c452f---610910950.pdf
- http://taiwanglassgroup.cn/userfiles/file/gudowolokugakesigorefa.pdf
- http://diversecityuk.com/userfiles/file/fuduri.pdf
- https://janeunchained.com/wp-content/plugins/super-forms/uploads/php/files/4eib916g1m321jd8osc3fqaq2e/suwotujulisasiwefizelagif.pdf
- https://daismene.it/file/17288628914.pdf
- https://metroguards.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160d8c0b6cd278---tatazuwupojefidukukura.pdf
- http://aps-mes.com/files/file/jedivagojedokakukum.pdf
- http://neuragen.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160870a9a4991b---1093104237.pdf
- http://www.auditsi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099f6177c03c---90731802365.pdf
- https://provisionsinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/160dac285018bb---63294048177.pdf
- http://www.alfainstal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160ce831b21757---vaxutasajedovapipikokil.pdf
- http://nexxosrealty.com/userfiles/files/timapam.pdf
- https://rosemonttherapy.health/wp-content/plugins/super-forms/uploads/php/files/nkrbcc58qra8rut186a38kkt7a/jivatuvojosireb.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_off000165ee.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x165EE | 16792 bytes |
font_01_sfnt_off00017e00.binba2f020004ac37210921875861bd53c81c0076aeac3884c5d8a4cb58e6a879ff |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17E00 | 18596 bytes |
font_02_sfnt_off0001afd1.bin1fc1f79dbe5dcf46442e3b610f3a367e69c7e854924bfa05600fbff65e5b076f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1AFD1 | 10140 bytes |
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