MALICIOUS
204
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 PowerShell
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains multiple heuristics indicating malicious intent, including a ML classifier flagging it as malicious and ClamAV detecting it as a phishing trojan. The 'SE_CLIPBOARD_COMMAND_LURE' heuristic strongly suggests the document instructs users to copy and paste commands into a shell, likely to download and execute a second-stage payload. The numerous embedded URLs pointing to compromised WordPress sites and other domains further support a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
Heuristics 8
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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://medvor.ru/uplcv?utm_term=cucm+12.5+bootable+iso+download
- http://southportrubbish.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608959ea4cdd1---pomaradum.pdf
- https://hsegroup.ru/wp-content/plugins/super-forms/uploads/php/files/aqdako5p1iii1s2dh5erikjb91/kujofi.pdf
- http://chronicles.ae/userfiles/files/71346368186.pdf
- https://www.hemoroidklinigi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084a70eca733---kekewobu.pdf
- http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b519a294c7a---90913179380.pdf
- http://hotelgiottotorino.com/userfiles/files/zufurawitibuxidoz.pdf
- http://ledseoul.com/userData/board/file/pesigefinira.pdf
- https://luxartparquet.com/wp-content/plugins/super-forms/uploads/php/files/929a2d8b3089e5e9543af349b628e058/xupifazamagutedobunu.pdf
- http://raczcsalad.hu/files/sumigiv.pdf
- https://maugli24.ru/wp-content/plugins/super-forms/uploads/php/files/4bd3576c2f028f8ac83f436c0b81ab75/gutezatumovupadojozo.pdf
- http://mgmkt.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b7754aca322---18207435109.pdf
- https://diversifiedhumansolutions.com/wp-content/plugins/super-forms/uploads/php/files/79012fb4049eecd9019e2eadf1a1ffeb/65113716504.pdf
- http://salonlomi.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160bfbf951669b---bufaxasetizezomelu.pdf
- http://sieckultury.pl/wp-content/plugins/super-forms/uploads/php/files/539754fb13226edc9be7e33e8ab0e3d8/sapelimixupibex.pdf
- https://lakecountyoralsurgery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160743062bb953---53295803363.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e0b5.bine14982689d2cad1b6c3f1db6bb8e2c26d3efba95e748f9e145830631d8261ea7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE0B5 | 11160 bytes |
font_01_sfnt_off0000fafc.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFAFC | 16792 bytes |
font_02_sfnt_off0001130d.bin6d636ebcb28a43c11a0b96216d988d0aaa25e428b847d4e039b2a2a6b6e27b6d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1130D | 16068 bytes |
font_03_sfnt_off00012829.binda9a53a6a22eb443caa78cbf91d880440f84143729ce4833384123d4d8530b11 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12829 | 18392 bytes |
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