MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to compromised CMS upload directories, suggesting a link farm or redirection scheme. The ML classifier strongly flagged this PDF as malicious. While no scripts were extracted, the presence of multiple external links and the ML detection indicate a high likelihood of malicious intent, possibly to lure users to malicious sites or for SEO spam.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
Heuristics 5
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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 http://krallarintavugu.com/upload/file/perajabotan.pdf In PDF document text
- https://abzesolar.com/uploads/files/14651616705.pdfIn PDF document text
- https://alkathirilaw.com/userfiles/files/dilebomu.pdfIn PDF document text
- https://kes-stv.ru/wp-content/plugins/super-forms/uploads/php/files/967942550c4262fdac76add863461b9a/motepujulobugogufimimuk.pdfIn PDF document text
- http://daindnc.com/fckeditor/userfiles/file/ginawaxamaratito.pdfIn PDF document text
- https://tomaszbizon.tomaszbizon.pl/web/uploads/files/7573525317.pdfIn PDF document text
- http://www.veronicaneal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/1613076d79de16---91870145185.pdfIn PDF document text
- http://fitviewer.com/files/file/voravodotewulexaguzimusu.pdfIn PDF document text
- http://minisadik-margaritka.ru/admin/ckfinder/userfiles/files/5165747185.pdfIn PDF document text
- http://www.salac.cz/ckfinder/userfiles/files/87457023577.pdfIn PDF document text
- https://bahispesinde.com/gnc/veri/_files/kazinitoxafifizazawud.pdfIn PDF document text
- http://gamax-motor.cz/data/dokumenty/69333268656.pdfIn PDF document text
- http://bronia.org/userfiles/file/fukodenore.pdfIn PDF document text
- http://karimeh.com/public/userfiles/file/bonafakuroxonafen.pdfIn PDF document text
- http://wcsps.com.tw/ckfinder/userfiles/files/dexuwobixed.pdfIn PDF document text
- http://poaglasses.com/uploads/files/202109051449067408.pdfIn PDF document text
- https://australiancaravancentre.com.au/application/third_party/ckfinder/userfiles/files/45240596203.pdfIn PDF document text
- https://apotekatia.ba/fajlovi/68794301899.pdfIn PDF document text
- http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/n2jedt243gnerobmsmuvlslj40/godiw.pdfIn PDF document text
- http://budka39.ru/files/40344184868.pdfIn PDF document text
- https://rzfmuhasebe.com/userfiles/file/19390182583.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=tunnelbear+apk+modPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b95e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB95E | 10488 bytes |
SHA-256: 0505f1a4964cc77d0faaed4860b173384f2549fa9543b0e5901284b179694429 |
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font_01_sfnt_off0000d0ea.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD0EA | 16052 bytes |
SHA-256: 04b1e52458a7a44cc2aea931200fdef80664b6e920096116fa80f7b6cb493cb1 |
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font_02_sfnt_off0000f9fb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9FB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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