MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is identified as a malicious PDF by multiple heuristics and a machine learning classifier. It contains numerous external URIs, many pointing to compromised WordPress sites, suggesting a link farm designed to redirect users. The presence of these links indicates an attempt to lead users to potentially malicious content or phishing pages.
Machine Learning
- Nyx PDF Classifier malicious score 0.9765
Heuristics 6
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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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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://philabc.ru/uplcv?utm_term=capitalize+and+in+title
- http://www.icodar.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608090b833802---nowuzemusisivusowodaxogi.pdf
- http://kbchina.de/upload/memijikabidikavu.pdf
- http://www.recetasyconsejos.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa4717c4050---11103226629.pdf
- https://k9-warrior.com/wp-content/plugins/super-forms/uploads/php/files/qbvnd9tgadg6d029a5uli3d7pd/zuganegigib.pdf
- https://wholisticvibrations.com/wp-content/plugins/super-forms/uploads/php/files/425ade84858a838ca9914645cab8ffe4/20339724989.pdf
- https://drmarlenebothma.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16078c9b40e580---nobobilenajivesenetegob.pdf
- https://sancarspune.com/wp-content/plugins/super-forms/uploads/php/files/5a7fee9f83d9bdcc886309578990b10f/56802358849.pdf
- https://glasschneider.koeln/wp-content/plugins/super-forms/uploads/php/files/bm2av7oqkok9632krv4rjf2img/pazunewobuxumur.pdf
- http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/160c92f6c24598---58122435145.pdf
- http://babamoleskine.com/files/file/4746109163.pdf
- http://www.northeastmarquees.com/wp-content/plugins/super-forms/uploads/php/files/43fc9421c715efe5abe0adbd8f17d971/basoxowomimivipi.pdf
- http://windcampus.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086e098d40fe---batumezuzixaropemaperew.pdf
- http://www.dnevi-sekretarjev.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16072b58c2bff2---mabumagerikobubepobojegof.pdf
- http://selfmadefilms.nl/userfiles/files/gujavetaro.pdf
- https://angkorphotographyguide.com/userfiles/file/18191299259.pdf
- https://www.helmmsp.ca/wp-content/plugins/super-forms/uploads/php/files/9e5a2ff13cb4e6fe5fe4adf8e134b025/gebumupitojepisasimuwa.pdf
- https://expresstestingatl.com/wp-content/plugins/super-forms/uploads/php/files/b5428b96f4c95c418e9b03921d105d2e/28393179230.pdf
- http://otvorene-srdce.sk/userfiles/file/vexiparitisudajeduzinun.pdf
- http://sinara.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608358f6449d5---71834155395.pdf
- https://ludifrance.fr/userfiles/file/17645930139.pdf
- http://shreejians.com/userfiles/file/bugunomex.pdf
- http://yossy.biz/userfiles/file/bojapigeresajewumo.pdf
- https://llibreriaha.com/img/events/file/wokemejarewefu.pdf
- https://eberli-medical-supply.ch/upload/file/49041985141.pdf
- http://canxetaidientu.com/images/file/99232533811.pdf
- http://jullien38.com/ressource/site-image/files/gusomubidirake.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e8dc.bin55e91200384f257b6f11bc19aa7f8e59270c777c6cccb8e2e8218f6a68b52133 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE8DC | 17816 bytes |
font_01_sfnt_off000117f5.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x117F5 | 16792 bytes |
font_02_sfnt_off0001300c.bin4f04d725b07527e4b7cf7607f55bb9cc52f5766f60aaadf5dabb10404b5e7352 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1300C | 10088 bytes |
font_03_sfnt_off000146a0.bin7d15b2d6d265aaca51dda18faee70a1b8fa9d95ed54cb111fb0895789092f9ae |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x146A0 | 16312 bytes |
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