MALICIOUS
216
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a PDF file flagged by ClamAV as a phishing trojan. Heuristics indicate it contains a link farm pointing to compromised WordPress sites and disposable hosting, suggesting it's part of a phishing or SEO poisoning campaign. Crucially, a 'Clipboard command execution lure' heuristic fired, indicating the document likely instructs the user to execute commands, a common technique for downloading and running secondary payloads. No scripts were extracted, but the overall pattern suggests a malicious document designed to trick users into compromising their systems.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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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Clickable URI points to raw IP address medium PDF_URI_IP_LITERALPDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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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://catamma.ru/uplcv?utm_term=autocad+2013+free+serial+keys+activation+code
- https://noddy.nu/images/file/77696285888.pdf
- https://mldom.xyz/web/img/podborky/files/vilubozu.pdf
- http://bochosushi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c1552208b1---muguripod.pdf
- https://goldengrowers.com/wp-content/plugins/super-forms/uploads/php/files/9e8e89e8db40b0596427edf0e4c798bb/28865126139.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160906d378e8ef---66696147471.pdf
- http://itfind.ru/uploads/file/71788381315.pdf
- https://cvenhancer.com/wp-content/plugins/super-forms/uploads/php/files/8868c7b3da6cc7cb5c80564a9223b301/52168051609.pdf
- https://thietbivesinhanhhuy.com/asset/files/2319287205.pdf
- http://robalton.es/Albums/images/file///38698288838.pdf
- https://formapolis.it/wp-content/plugins/super-forms/uploads/php/files/c0026a4d57217a40737d253eaf270fd1/98845827330.pdf
- https://www.tessilgiada.it/wp-content/plugins/formcraft/file-upload/server/content/files/160b9b4a6e1477---nixajobitojujuzupuwululop.pdf
- http://stroynerud-sm.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160eca5630df57---lavedokomo.pdf
- https://www.marvistasales.com/wp-content/plugins/super-forms/uploads/php/files/3a36d7fc73f1d451f001993d787f879b/43962187875.pdf
- http://profesniprukaz.cz/ckfinder/userfiles/files/69230417711.pdf
- https://njsolarpower.com/wp-content/plugins/super-forms/uploads/php/files/221879f3eedd398637a26ce0c059cae0/rewamapoweda.pdf
- http://tubietelbar.hu/uploadfile/10923254267.pdf
- http://palakkadtourism.in/ckfinder/userfiles/files/ripezujo.pdf
- http://79.170.40.182/boothtastic.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a39e3d6207e---bawujoneresogedoxe.pdf
- http://www.abcklima.hu//data/editorfile/zajitu.pdf
- http://shadesvalleymounties1969.com/clients/868959/File/77147271042.pdf
- http://cafehinglung.com/uploads/files/78113129322.pdf
- http://greenbrier101.com/userimages/minurusutenaxaxamufage.pdf
- https://amenagementsoleil.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608bab81d5509---45410498811.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_off0000f9bd.bin419d9f008bfcdbd96c49e7de90ece128324e3cd9d2e3d7244ecfd1cd376dadf2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9BD | 11288 bytes |
font_01_sfnt_off00011494.bincc355c31bb7eab7c3ef8c012d624f6b4c53043039650e88acacd67bbc0251755 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11494 | 19852 bytes |
font_02_sfnt_off0001473d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1473D | 16792 bytes |
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