PDF malware analysis — malicious · f86632503d56df24

MALICIOUS

PDF

64.3 KB Created: 2020-11-25 11:26:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05

MD5: fd62a97686a8e55f29a7dfbb27862c60 SHA-1: b92d26dfd02e3ae57aecb971bd7cf717878197fe SHA-256: f86632503d56df249c44a1b0a7aabfb228050356aab694b1bffae2e5167bc9fb

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 download an Epson driver. This is a common lure for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to delivering a payload via the embedded link.

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://trafffi.ru/strik?utm_term=epson+tm-t88iv+driver+for+mac PDF link annotation
- https://cdn-cms.f-static.net/uploads/4482617/normal_5fb2bc8b7cf3c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4409425/normal_5f9d354464f49.pdfIn PDF document text
- https://xogexemufak.weebly.com/uploads/1/3/1/4/131437987/0a1c8435.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366961/normal_5faf608c2a452.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4376098/normal_5f922b08c2851.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4385848/normal_5f91292b72052.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4386622/normal_5f9a26bab5912.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/daxemo/puerto_rican_parade_orlando_performers.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0c7283f2-ffec-491a-8241-99c97f04d6bb/puzedaset.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/14f2f5d7-9e62-4f90-8d13-b0ab104a07a9/perdida_de_sustentacion_aerodinamica.pdfIn PDF document text
- https://s3.amazonaws.com/sugowubuf/jujivizisupugutanonodoxel.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_off0000be4c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xBE4C	5512 bytes
SHA-256: `f296ea851521042622edf91b423cb31f780dd5276c004621fbd67aacf3e1d89a`
`font_01_sfnt_off0000d103.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD103	10256 bytes
SHA-256: `53fb5dcb91101bd174f54fc8520a68c10afc01567a5f937e293a0c832c3d386e`

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