MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a PDF containing embedded JavaScript, which is a common technique for exploiting PDF vulnerabilities or redirecting users to malicious sites. The PDF also contains a large number of links pointing to compromised WordPress sites and disposable hosting, suggesting a link farm designed to obscure the ultimate destination. ClamAV and ML classifiers strongly indicate malicious intent, likely related to phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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 https://drafthe.ru/uplcv?utm_term=harrisburg+parks+and+recreation
- https://www.makathastaliklari.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607fa0836810b---97329834753.pdf
- https://loskutova.site/wp-content/plugins/super-forms/uploads/php/files/de5d314351e8d3443c04a8432a0437ca/lowisoleponi.pdf
- https://parkettworld.com/upload/files/34633749124.pdf
- https://realimpacto.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16070da33c0242---23577401391.pdf
- http://hakkabrothers.com/userfiles/file///69327377133.pdf
- https://agatanorek.com/files/file/kegilemuzuwejegabanejuw.pdf
- http://deurwater.com/wp-content/plugins/formcraft/file-upload/server/content/files/160adae330c57d---81921935121.pdf
- https://www.projectorrentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083f745e4e05---kenebiwilaguraduzovuza.pdf
- https://mobistore.co.nz/wp-content/plugins/super-forms/uploads/php/files/96c021786541ad274cff4fabafcdf78b/tesatusigopiv.pdf
- https://certifiedmoversinc.com/wp-content/plugins/super-forms/uploads/php/files/02f7d44e1331f29bda24f0a673cd9c23/95690587242.pdf
- http://4998horo.gmmwireless.com/contents/files/10224458221.pdf
- https://hmv.ir/wp-content/plugins/formcraft/file-upload/server/content/files/1607b847003fc1---89601764484.pdf
- http://www.qookspot.kitchen/wp-content/plugins/formcraft/file-upload/server/content/files/16084ac030682f---62370821309.pdf
- http://jjmcp.jp/userfiles/Image/file/zonotuxeweju.pdf
- http://triumphtoday.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b083c5eca56---33381541075.pdf
- http://jockmurray.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076a72023519---52558614333.pdf
- http://taketty.xyz/js/ckfinder/userfiles/files/miwenatotuwapevivimerilu.pdf
- https://www.chortho.co.uk/wp-content/plugins/super-forms/uploads/php/files/p1fhdba6g74fib24fel8fg05ua/24142040351.pdf
- http://scoutpate.com/userfiles/file/nawusefaposumamafarowal.pdf
- http://brukbet.com/user_images/file/71702671397.pdf
- https://contactfm.be/userfiles/files/73423757267.pdf
- http://www.klpreschool.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098f72f88986---nofonanukexivepenor.pdf
- 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_off00010034.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10034 | 16792 bytes |
font_01_sfnt_off0001184b.binc8079fc1bd23bcb052ddfd5473593f5be760fb0b0d176c38a80e00c86293ae73 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1184B | 10968 bytes |
font_02_sfnt_off00013169.bin137a4e1a53c843c19cb7ca06af93824d1104658c85812c53149b1a4110088a81 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13169 | 17628 bytes |
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