PDF malware analysis — malicious · 63768aeb6c7e27ed

MALICIOUS

PDF

79.3 KB Created: 2021-03-21 08:34:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: f2917129b7d3f91b1408aaf1fa9c97ce SHA-1: 9420b7c75fcfc20dc2b3f58f911779e052f8ec70 SHA-256: 63768aeb6c7e27edac89fcf1137870d5d0b0f4b6e34f8313523661373bcfaf53

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is a PDF that contains an embedded URI pointing to a suspicious domain, mezovuduw.ru. This domain is likely used to host a phishing lure or download a secondary payload. The ML classifier and ClamAV detection strongly indicate malicious intent, consistent with a phishing attack delivered as an attachment.

Machine Learning

Nyx PDF Classifier malicious score 0.9997

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://mezovuduw.ru/award?keyword=relative+vs+absolute+dating+worksheet+pdf
- https://static.s123-cdn-static.com/uploads/4421637/normal_5fddd87ebcfc8.pdf
- http://uber-global.com/recumbent_bike_life_fitness_silverline_95ri657hv.pdf
- https://static.s123-cdn-static.com/uploads/4387939/normal_5ff1593c4c490.pdf
- https://cdn-cms.f-static.net/uploads/4460057/normal_5fd86fed41b4c.pdf
- https://cdn-cms.f-static.net/uploads/4447464/normal_5fd130fa66ef4.pdf
- https://cdn-cms.f-static.net/uploads/4477863/normal_603ae97e81fcb.pdf
- http://esclub.pro/kk_muhammed_asi_report03k3c.pdf
- http://koreatop.ru/jezapozelofunilklz.pdf
- http://tronreserve.online/background_hd_blur_imagefjjr4.pdf
- https://static.s123-cdn-static.com/uploads/4408476/normal_5ff1c03f15a5b.pdf
- http://segwaywheelchair.ru/1136168838ewgk9.pdf
- http://moreprodukti.com/tufebepepitasamimih8gm8.pdf
- https://cdn-cms.f-static.net/uploads/4452593/normal_601b002a7468c.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://fizarurepolap.epizy.com/dogberry_much_ado_about_nothing_character_analysis.pdf
- http://zujopafupo.epizy.com/bartolome_de_las_casas_biografia_resumida.pdf
- http://lozebaloporan.epizy.com/13330251036.pdf
- https://s3.amazonaws.com/wazagidonux/rewolerazozufarilijex.pdf
- https://s3.amazonaws.com/rupatojuko/google_spreadsheet_app_mac.pdf
- http://miviguwi.epizy.com/xejikesepojum.pdf
- https://s3.amazonaws.com/dazuxujepov/rewoxawokesipovekijat.pdf
- https://s3.amazonaws.com/lakadutof/green_marketing_project.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://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000f20e.bin` `ab9b77415fe02ebeb79860c6bfc5a1a6433500c7b89d8342ac9db9822bfe6806`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF20E	5664 bytes
`font_01_sfnt_off00010568.bin` `2714a8ac348baf20538c4fb08ba85d26276b6d3214ccf0da4b8f4d7eb485e2d1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10568	12644 bytes

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