MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs, many of which point to compromised websites or are part of a link farm designed to redirect users. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. The presence of a link to a compromised WordPress upload directory is a significant indicator of malicious activity.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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 http://acutecardio.ru/sadm_files/darafeduwu.pdf In PDF document text
- http://alompar.hu/uploads/content_files/files/1239162174.pdfIn PDF document text
- http://optikametuje.cz/userfiles/file/71007491060.pdfIn PDF document text
- https://dianthusindustrial.com/resimler/files/mozubupufu.pdfIn PDF document text
- http://objetivovender.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137bb1f5b6e2---2589442496.pdfIn PDF document text
- https://ijpdua.com/contents/files/18487537645.pdfIn PDF document text
- http://www.masozilina.sk/ckfinder/userfiles/files/47808665031.pdfIn PDF document text
- https://xn----7sbeo1acdy3adh.xn--p1ai/userfiles/file/32531584296.pdfIn PDF document text
- http://dija.lv/public/userfiles/file/lewavofanipujatupoj.pdfIn PDF document text
- https://www.sesc.com.ua/wp-content/plugins/super-forms/uploads/php/files/e1ovl5ociecc11s5fqvpb6oq55/pemibowabapemomuten.pdfIn PDF document text
- http://audyt.rowerowaszkola.pl/imgturysta/files/75557495711.pdfIn PDF document text
- http://www.srijonihealinghome.com/fckimages/file/pirorojid.pdfIn PDF document text
- https://nazragame.com/calisma2/files/uploads/93405219258.pdfIn PDF document text
- http://sccsfz.org/upload/2021-09/84682174939.pdfIn PDF document text
- https://aaaxxion.info/images/file/deguma.pdfIn PDF document text
- http://limeitec.com/upfiles/editor/files/takamejegufav.pdfIn PDF document text
- https://steklo-shik.ru/userfiles/file/82040494682.pdfIn PDF document text
- http://sensi-leszno.pl/userfiles/file/velutaga.pdfIn PDF document text
- https://rabudiagnostic.com/userfiles/files/95712161178.pdfIn PDF document text
- https://www.tifdip.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613135be4f159---losotoxulikowolukokibijak.pdfIn PDF document text
- https://ystechpro.com/nbloom/fckuploads/file/23949772211.pdfIn PDF document text
- http://bookblog.kr/data/file/files/bawore.pdfIn PDF document text
- https://nezrenpin.com/calisma2/files/uploads/58979986006.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=hack+csr+2+androidPDF 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_off0000d7a9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7A9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000efbb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFBB | 17448 bytes |
SHA-256: 17cc981d110ca7eeaa2a33bdc82653b1bde0769600303f8837873c292332e307 |
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font_02_sfnt_off00011c7a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C7A | 10288 bytes |
SHA-256: 320a72b1df7cab24943899f23e895685fd3cb9e2896a2240c84ba53e824f477c |
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