MALICIOUS
204
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a link farm pointing to compromised WordPress upload directories, suggesting an attempt to deliver a second-stage payload. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' indicates the document likely instructs the user to open a password-protected archive, a common tactic to bypass gateway scanning. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9961
Heuristics 8
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://apexforestservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a57186bf8ed---babezipukiw.pdf
- https://www.cpro.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1607b08180f0e6---76174390515.pdf
- http://www.1atlanticfunding.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a461d0d7d74---99998786754.pdf
- https://pensionatiitalianiinportogallo.it/wp-content/plugins/super-forms/uploads/php/files/a2903938bbce44e5fb21bdcab5e75016/puwuxevinek.pdf
- https://levin-dent.ru/wp-content/plugins/super-forms/uploads/php/files/12377b062af268e887b23c5a90336d33/kamazimik.pdf
- http://abpaluso.com/upload/file/vowazipixamigof.pdf
- http://www.pianoszimmermann.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608a74ea4189d---sodiwerit.pdf
- http://www.recetasyconsejos.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608486a2e6164---satanudiwesa.pdf
- http://www.vivelamusica.es/wp-content/plugins/formcraft/file-upload/server/content/files/160be165b4fe92---ximiligulezejabakusilokaw.pdf
- http://446888.top/userfiles/file/5683735502.pdf
- https://gpuhub.net/wp-content/plugins/super-forms/uploads/php/files/u5f38mmsa68520u4mjatmr77dn/20918714161.pdf
- http://www.dismaplant.com/ckfinder/userfiles/files/zumuwani.pdf
- https://legacyltg.com/wp-content/plugins/super-forms/uploads/php/files/185392eb77d0a7b805b1439a5fb1e603/63593706239.pdf
- http://446888.top/userfiles/file/68762087550.pdf
- https://www.euroservicemilano.it/wp-content/plugins/formcraft/file-upload/server/content/files/160bb60d70bf3a---nezoxawosesibesijurikeju.pdf
- http://www.theagentpipeline.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c73bfbb7a32---varuxogom.pdf
- https://www.isnb.co.uk/wp-content/plugins/super-forms/uploads/php/files/254a506b0c60d39a12676f3d9205a4f4/xorenuva.pdf
- http://warraichmeats.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070ba0b6a3e3---57710267727.pdf
- https://chachachat.info/js/ckfinder/userfiles/files/97698224265.pdf
- http://www.hypnotiseur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b6088d782d3---99153124744.pdf
- https://suhrsmad.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16098a32c44703---polixakuwezizesapiroduv.pdf
- http://www.sarajevo-inn-grunewald.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072021003553---rorovopurijobelimenobubol.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=brute+force+password
- 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_off0001026e.bin2e33c3f8c036d8844ec1f3ec486e800337c55aed51d004809e090d51ec1b5053 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1026E | 10608 bytes |
font_01_sfnt_off00011af1.bin6e507157a9936cfa33d70d46917362a0484bda23fc20aebfd7fdfd714520e313 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11AF1 | 29076 bytes |
font_02_sfnt_off00015612.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15612 | 16792 bytes |
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