PDF malware analysis — malicious · 4a82f6c49b22ee34

MALICIOUS

PDF

61.2 KB Created: 2020-12-03 09:44:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02

MD5: 374a143bdea87863e27aade416fc491d SHA-1: 0b9eeed1c56328dd8307727678ab8e0ee4ce0d35 SHA-256: 4a82f6c49b22ee348a904a25f2c80df103f23a296f5a4caab8948da7f40d0c55

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9996

Heuristics 4

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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://trafffi.ru/strik?utm_term=blown+to+bits+pdf+chapter+3 PDF link annotation
- https://xifofenanupov.weebly.com/uploads/1/3/4/8/134857182/9935041.pdfIn PDF document text
- https://gosawopidelogeb.weebly.com/uploads/1/3/4/7/134714887/7298865.pdfIn PDF document text
- https://nepubodi.weebly.com/uploads/1/3/4/6/134610278/joxenolepawol.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4384470/normal_5fb421468196d.pdfIn PDF document text
- https://susakatevasek.weebly.com/uploads/1/3/4/8/134871092/pogujewisew.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/f65520fa-b46a-4551-9df7-24d14c3e78f6/gijizikilajebejexumuv.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/533131c2-084d-4b8a-a6c9-c156196573b5/ralebalitaf.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/cbe34015-dd2f-4298-9f08-aee342de890f/dekixoj.pdfIn PDF document text
- https://static1.squarespace.com/static/5fc53a26a13a450bab10c448/t/5fc71c863d56556d14369888/1606884487025/minerva_re_zero_wallpaper.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f29941c3-f0fe-44e2-b658-bac695b86a60/jitexojakij.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/35a843c8-2d64-4034-ae4f-46aeae1d2951/jlg_scissor_lift_operators_manual.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000b4f8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB4F8	5688 bytes
SHA-256: `cbd9b5ff9ca9795e5f45f5c5e400de89ad07d98bb868f2ef8554e70f645a3222`
`font_01_sfnt_off0000c85b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC85B	9420 bytes
SHA-256: `5494a2cb777d8358ae66d07f9098a73278cd0cb847a7077d6d6c50bf410923ab`

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