MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, which is a common technique for executing malicious code within documents. Additionally, numerous URLs were extracted, many pointing to compromised WordPress sites, suggesting a link farm designed to redirect users to potentially malicious content. The ClamAV detection and ML classifier further support the malicious nature of this file.
Machine Learning
- Nyx PDF Classifier malicious score 0.9922
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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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 http://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160c54ceeebec9---1759964122.pdf
- https://triosms.com/userfiles/file/28456345545.pdf
- https://www.sahabatkeluargahomecare.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608dadc61ea4a---80046891024.pdf
- https://www.teppiche-waschen-hamburg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160d3b273294a3---xefogipikamep.pdf
- http://bsa.by/ckfinder/userfiles/files/2554788855.pdf
- http://ototavandosemesi.com/resimler/file/57701420256.pdf
- http://paillasse.hu/userfiles/file/14490605023.pdf
- http://cleannshieldflorida.com/wp-content/plugins/super-forms/uploads/php/files/6c047c6b7f1e70154efa26271e9f6039/berolax.pdf
- https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607529f78fc67---bituxefagevikebusenele.pdf
- http://tipkeo.com/js/ckfinder/userfiles/files/vusobupuva.pdf
- http://hifimarkt.eu/kunden/kronhardt/ckfinder/userfiles/files/74078634425.pdf
- http://edanieltour.com/FileData/ckfinder/files/20210529_B6C68E3758E2577B.pdf
- https://spectrumohio.com/wp-content/plugins/super-forms/uploads/php/files/632f335d249c4b1c9513a711172b0aa6/60141939677.pdf
- http://angelojrobles.com/admin_initial_test/userfiles/file/24843674692.pdf
- http://festivaldeliteraturadepereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a822182ef96---bofanerez.pdf
- https://www.uniqueartzz.com/wp-content/plugins/super-forms/uploads/php/files/nnm5u1mf2g5vhtjlfaitatslhh/vofofike.pdf
- https://dm288.rs/slicice/file/derojipexurowezutidafap.pdf
- http://www.heksan.com.pl/file/zopemoga.pdf
- https://sitpchemcieszyn.pl/_sitpchem/file/59185545796.pdf
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072429927a7e---neximofujekesesa.pdf
- http://amoy-art.com/Upload/file/36665894037.pdf
- http://pobierzplik.pl/uploads/files/jewusat.pdf
- https://www.lindopoint.it/wp-content/plugins/super-forms/uploads/php/files/30cf6ef136fb5951875b9e76f81b6ea7/giwunuvunitij.pdf
- http://goref.ru/files/file/48635357973.pdf
- http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/1607af986d09e4---42322150662.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=causes+of+nose+bleeding
- 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_off00012175.bin7af514da2524c255acefbb4fbc5297eaf59b7f1656154a7e1ecb3a6955d9a8ff |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12175 | 10600 bytes |
font_01_sfnt_off00013986.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13986 | 16792 bytes |
font_02_sfnt_off00015198.bin63118a86a348ecdaa4f0c1560257db138211e0db830b32c625d34c45642dd71c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15198 | 18044 bytes |
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