MALICIOUS
136
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a link farm hosted on compromised WordPress sites, directing users to download other PDFs. The 'SE_PASSWORD_ARCHIVE_LURE' heuristic indicates the document likely instructs the user to open a password-protected archive, a common tactic to bypass gateway scanning. The ML classifier strongly flagged this PDF as malicious, suggesting a high likelihood of a malicious payload delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
Heuristics 6
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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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://gservicepz.com/wp-content/plugins/super-forms/uploads/php/files/914b1c7b6a9c2d361b5f93f7477828c7/17522288051.pdf
- http://training-solutions.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1609352eba9157---97454417249.pdf
- http://abwjefferson.com/uploads/files/13227369313.pdf
- http://gsoam.ge/wp-content/plugins/formcraft/file-upload/server/content/files/160828bb279826---vupodoxofi.pdf
- https://freedomtampons.com/wp-content/plugins/super-forms/uploads/php/files/f36cdd5d9c03581783d5d1023d211661/64116776311.pdf
- http://ecbpolska.pl/wp-content/plugins/super-forms/uploads/php/files/590294884e2cea5b041b060a05500efe/kesalebakazij.pdf
- http://veronicanealhome.com/wp-content/plugins/formcraft/file-upload/server/content/files/2/16095b1357b64d---tobuxakanaf.pdf
- http://www.argentum.com/wp-content/plugins/super-forms/uploads/php/files/ibrutt9v0lc21qbemhb2i3sg90/35288693373.pdf
- http://staging.impactredevelopment.com/wp-content/plugins/formcraft/file-upload/server/content/files/160722b1738061---82220484328.pdf
- https://sumangold.net.vn/wp-content/plugins/super-forms/uploads/php/files/u6g5fcptnjjl8451u9oc1dbneu/65520560372.pdf
- https://www.hotelamoha.it/wp-content/plugins/formcraft/file-upload/server/content/files/16094bbfe9696e---88465802008.pdf
- https://www.medipratik.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b4be842fba---xumamuder.pdf
- https://staffxrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/f09d9653c2b0e061c46f8843f308b47b/86237881501.pdf
- http://kashima.cc/userfiles/file/67686711061.pdf
- http://www.kymkarajok.net/tiedostot/files/woxubeja.pdf
- http://ayurveda-shiatsu-qigong-nice.com/upload/files/48988887690.pdf
- http://yuseigachi.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a3e0a26c147---tetas.pdf
- http://wsp.pl/userfiles/file/51550478659.pdf
- https://ratsimae.ee/media/contents/file/kakabubibur.pdf
- https://eyestech.in/wp-content/plugins/super-forms/uploads/php/files/kooqgrpi1d4bap1q4hq92n48up/22035323901.pdf
- http://www.nbrownies.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606da54af1ff0---87035192986.pdf
- https://agribusiness.pk/wp-content/plugins/formcraft/file-upload/server/content/files/160945150aa5ed---40356226082.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=word+connect+level+117
- 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_off0000d87e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD87E | 16792 bytes |
font_01_sfnt_off0000f095.binb5bdcb7b0f64bb3a1ccb3328bb33d6aa071001dbb9b6c78d45f1b6d959ba00e4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF095 | 10104 bytes |
font_02_sfnt_off00010751.bina55a20a4c3932cb1d12232681ae6be71348b395677e20def9d9c477ed5227fc4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10751 | 19436 bytes |
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