MALICIOUS
106
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous external links, with a high-confidence heuristic identifying it as a link farm on disposable hosting. One of these links, http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/ml47mc3shihletc82j6dparjo2/suporovesaxej.pdf, is flagged as a random, algorithmically generated URL, strongly suggesting it leads to a malicious payload. The document body is heavily obfuscated and unreadable, providing no direct clues to its intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
Heuristics 5
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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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://krisoc.ru/uplcv?utm_term=travel+guide+app+for+android PDF link annotation
- https://ozmutludokum.com/userfiles/file/32391650124.pdfIn PDF document text
- http://lrm.mcdonalds.ua/ckfinder/userfiles/files/54739975590.pdfIn PDF document text
- http://szamosiszerviz.hu/feltoltott/files/49811492946.pdfIn PDF document text
- http://twapp.freshkon.com/upload/files/72102480944.pdfIn PDF document text
- http://americasbestwingspa.iorderfoods.com/uploads/files/30951402646.pdfIn PDF document text
- http://guojingmall.com/userfiles/file///15014759658.pdfIn PDF document text
- http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/ml47mc3shihletc82j6dparjo2/suporovesaxej.pdfIn PDF document text
- http://ginzaramen.us/uploads/files/fimatibazogurorujidoj.pdfIn PDF document text
- http://xn--oy2b19v1mb1yi.com/userfiles/file/50339761497.pdfIn PDF document text
- http://japanbizkorea.com/userData/ebizro_board/file/1669399968.pdfIn PDF document text
- http://pijntherapie.be/uploads/files/noxonuvukopixusivezude.pdfIn PDF document text
- http://juentai.com/userfiles/files/radodoruvuferetotazavifar.pdfIn PDF document text
- https://humantouchtranslations.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/161400ab26b45e---60046982281.pdfIn PDF document text
- https://itscebu.com/upload/file/20210917144233.pdfIn PDF document text
- https://festival.bg/fckeditorfiles/file/68753272542.pdfIn PDF document text
- https://norservis.com/files/files/12215564293.pdfIn PDF document text
- http://itnetworkconsultingsf.com/helpdesk/app/webroot/img/userfiles/files/9352341929.pdfIn PDF document text
- https://panegovernance.com/ourprojects/chowki/UserFiles/file/84059554897.pdfIn PDF document text
- https://kabelkyaobuv.sk/editor_uploads/files/biforuzitetinog.pdfIn PDF document text
- http://homespakistan.net/magzine/uploadfiles/file/fikorefotu.pdfIn PDF document text
- https://esterkins.de/ckfinder/userfiles/files/6180522514.pdfIn PDF document text
- 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_off0000c304.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC304 | 17936 bytes |
SHA-256: 3e49309290c75f6433cb4feeb7178df0e7ce5263efa094366feac2e97ae275fe |
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font_01_sfnt_off0000f1b5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1B5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000109cc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x109CC | 10536 bytes |
SHA-256: 28664c29996dee0d24fae1dea5c141269b24d1eea96ac14ff1db31204d729ec2 |
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