PDF malware analysis — malicious · 514f9f8fa936e204

MALICIOUS

PDF

75.4 KB Created: 2021-04-03 10:56:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 4e7839ab489e8d5501e3eb0cfdfe4145 SHA-1: cf9b5f31cdff27ace280921d3c463c6ebe4949df SHA-256: 514f9f8fa936e204c8f0900a1c0180ac03d783e90548d64d4d47533b76c9b571

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious site, consistent with spearphishing tactics.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

Heuristics 4

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
External URI info PDF_URI

PDF contains an external URL action
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The 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.
Embedded URL info EMBEDDED_URL

One 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://xezojetit.ru/strik?utm_term=best+novels+to+read+for+law+students
- https://cdn.sqhk.co/fuluzagile/iahjlgf/anime_boy_hairstyles_names.pdf
- http://goromeo.club/127129515108tds2.pdf
- http://tixobedo.22web.org/rurowotuvodubefikeg.pdf
- http://enots.space/fevereribomuxezifanpyk0.pdf
- http://good-production9.site/14953875492xzl2z.pdf
- http://widarexidifazi.iblogger.org/gukadok.pdf
- https://cdn.sqhk.co/bobimugura/TPjchia/emoji_wallpaper_free_download.pdf
- http://shoppingyxplus.xyz/32778910692izvej.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://uploads.strikinglycdn.com/files/8bca1780-8d08-4314-aac3-805d2b4cc9a8/razones_trigonometricas_ejercicios_sencillos.pdf
- http://judejupifubukum.epizy.com/double_cross_worksheet_page_194.pdf
- https://s3.amazonaws.com/vezumobigodub/kafefekekepexexebidenukol.pdf
- https://s3.amazonaws.com/vefagotoje/kosefuruvure.pdf
- https://s3.amazonaws.com/gimisorixosu/how_do_i_write_on_photos_in_instagram.pdf
- https://uploads.strikinglycdn.com/files/edf8d9be-80c3-4de4-88a3-67f828351186/cloud_9_cravity_lyrics_terjemahan.pdf
- https://s3.amazonaws.com/bitajemisajoz/portal_knights_guide_ps4.pdf
- https://uploads.strikinglycdn.com/files/65ffee7c-c191-4b22-83c4-0d76aef0b2ce/4975068714.pdf
- https://uploads.strikinglycdn.com/files/e40eb166-470a-4936-a0d6-94c23aa773a3/bewaw.pdf
- https://s3.amazonaws.com/xoferuzu/74590473020.pdf
- http://bit.ly/2Jy8dID
- 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://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000eaf1.bin` `7bd19b67ea1cb6595392de11fcbf4f23fe5fde5f29a4f5c3f59021157cf663c6`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEAF1	5104 bytes
`font_01_sfnt_off0000fc74.bin` `50406b384f24ca1b5c331767b2836ab71de9d9c5a5f7c59d3b754b8119652f4c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFC74	10452 bytes

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