MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is identified as malicious by ML classifiers and ClamAV, with heuristics indicating it's a link farm pointing to compromised WordPress uploads and disposable hosting. The 'SE_INVOICE_LURE' heuristic suggests a pretext for user interaction. Although no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest an attempt to trick the user into downloading a secondary payload, likely hosted on one of the provided domains.
Machine Learning
- Nyx PDF Classifier malicious score 0.9848
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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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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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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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://terapie-psi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160b697e030a32---92415065231.pdf
- http://endemic-capital.ru/uploads/files/gorafe.pdf
- https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/abb9788819e5ecd8fdbd3def4d1b3cf0/fexejizezado.pdf
- http://bjoybrands.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b1462b3e27---xajolovenuxafebufebi.pdf
- http://dush-kz.ru/uploads/fck/file/90545024538.pdf
- https://stakeoutllc.com/wp-content/plugins/super-forms/uploads/php/files/c4d20d610e83b80f63ada1be7398fb20/85830571367.pdf
- http://mirembeestate.co.ug/wp-content/plugins/formcraft/file-upload/server/content/files/160c87de3e62e2---91246831758.pdf
- https://addsfly.com/userfiles/file/wonaledegota.pdf
- http://caopump.com/admin/userfiles/file/52172970517.pdf
- http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1608a3dad48a7a---fofuwenil.pdf
- http://puppiesjust4u.com/clients/c/c8/c8a8d0e690f73854b1e7a5fbb9521f82/File/55953580682.pdf
- http://cuacuonnhanh.vn/Images_upload/files/35422000331.pdf
- http://churchliferesources.org/wp-content/plugins/formcraft/file-upload/server/content/files/16094227872405---39623548473.pdf
- http://ozanatalan.com/iboard/includes/userfiles/files/16520046166.pdf
- https://digireg.cz/upload/93304796554.pdf
- https://zold-kommando.hu/files/20766625439.pdf
- http://starwindows.ie/ckfinder/userfiles/files/74193498472.pdf
- http://moveisgarciadigital.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609c8852e4514---miwinewojepelarewezofep.pdf
- http://drapikowski.pl/uploaded/fck_files/file/bazowonujekize.pdf
- https://mamproducciones.es/wp-content/plugins/formcraft/file-upload/server/content/files/160f2310f24b45---bawilevufixetali.pdf
- https://mygoaltv.com/ipp/images/uploads/files/fedaledusar.pdf
- https://psychotherapie-dr-albrecht.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607af56521bcb---wozefojeju.pdf
- http://www.colegiometa.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/16092ec766aafb---63123232518.pdf
- https://kanalprofi.at/UserFiles/file/rogupawepebeseru.pdf
- http://daimarconstrucciones.com/images/admin/file/nisameb.pdf
- http://witnesstherealist.com/wp-content/plugins/super-forms/uploads/php/files/1f3659a44af1314b2a68ea33ad1db0bb/77719048014.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=rsu+withheld+for+taxes
- 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_off0000f1ae.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1AE | 16792 bytes |
font_01_sfnt_off000109c5.bin9dc7807bcd70765c2dca9c0889cb70e2508a3ce55a62c4ad8d8a9a2b17264012 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x109C5 | 10680 bytes |
font_02_sfnt_off00012278.bind2ebcc84993ad066b318364fb7e2dfec96e3b38f19e0104ebfcc86017745fac8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12278 | 16808 bytes |
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