MALICIOUS
172
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected by ClamAV as Pdf.Phishing.Trojan and exhibits multiple heuristics indicating malicious intent, including embedded JavaScript and a link farm pointing to potentially compromised WordPress upload storage. The presence of embedded JavaScript suggests an attempt to execute malicious code or redirect the user, likely as part of a phishing or malware delivery scheme. The link farm heuristic further supports this by indicating a pattern of distributing links across various domains, some of which are hosted on compromised infrastructure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9940
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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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://artistaone.co/userfiles/files/83051933744.pdf
- http://pierrevillers.fr/mairie_files/file/tixewuxumezomexarivo.pdf
- http://mosjob.ru/images/file/davopanoribemofozozezover.pdf
- http://jca-t.com/fck_image/file/somupokezu.pdf
- http://thepducphat.com/upload/files/29880417432.pdf
- http://dlzj.net/upload/files/20210909070227467598.pdf
- http://palaciodelosnavas.com/userfiles/file/batulupibogiralaxu.pdf
- http://spielundlicht.de/content_provider/documents/files/83129821570.pdf
- http://speed-r.com/js/upload/files/45884238307.pdf
- http://bookblog.kr/data/file/files/35708934808.pdf
- https://carthink.org/wp-content/plugins/formcraft/file-upload/server/content/files/16134f3c4d6de3---63358044836.pdf
- https://sim2007.com/files/84885714977.pdf
- http://oipipleszno.pl/userfiles/file/fimavadakewifu.pdf
- http://siripanyalamphun.com/user_img/files/lurujitutixilowebogo.pdf
- http://maxitelt.no/wp-content/plugins/formcraft/file-upload/server/content/files/1613e573b788e7---94561827219.pdf
- http://gocchame.vn/app/webroot/img/uploads/files/65097822759.pdf
- http://slstudio.it/userfiles/files/66190757748.pdf
- http://drxzhang.com/userfiles/file/52104397829.pdf
- http://paulabenveniste.com/UserFiles/file/39120674055.pdf
- https://www.lavishlook.se/wp-content/plugins/super-forms/uploads/php/files/4f70507145a9d436d81d80e194254082/dutilujaduvuzuwazafebux.pdf
- http://ilovechardonnayhills.com/userimages/80435953496.pdf
- https://imaggu.com/ci/userfiles/files/nidoperudaguxajo.pdf
- http://xn--989ap7r0xbd5x.com/upload/fckeditor/file/15594257581.pdf
- http://babamoleskine.com/files/file/xidijopox.pdf
- http://promocode.lu/userfiles/files/rifuwegupoxobiwazabon.pdf
- https://gadesign52.com/uploads/files/202109051312442341.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=do+you+stream+apk
- 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_off0000e214.bina0ae52cf33466956d0f086f4e8397025cf647d07c470281730da6b5406dc8adb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE214 | 18208 bytes |
font_01_sfnt_off00011085.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11085 | 16792 bytes |
font_02_sfnt_off0001289c.bine8451f8fb0f778b23b9911dcb9350f0a1696e26f4bd201f2e48c2e181bff6b98 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1289C | 10480 bytes |
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