PDF malware analysis — malicious · 360c7696d920e74c

MALICIOUS

PDF

72.3 KB Created: 2020-11-26 04:34:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26

MD5: f899bcd83327ef9c86b6db6ab044b7d9 SHA-1: 5d79cc10c4b434d08ddcbc74674d9d191741d9a7 SHA-256: 360c7696d920e74c6fecb3dbc4ca3e0ac8ca66ac725f6b2c7135485f85e20b51

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by multiple heuristics, including a machine learning classifier and ClamAV, indicating malicious intent. It contains an embedded URL pointing to 'trafftec.ru', which is likely used for phishing or to download a secondary payload. The document body, though heavily obfuscated, appears to reference product information, suggesting a lure to trick users into visiting the malicious link.

Machine Learning

Nyx PDF Classifier malicious score 0.9837

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://trafftec.ru/strik?utm_term=earth+balance+peanut+butter+crunchy PDF link annotation
- https://cdn-cms.f-static.net/uploads/4448538/normal_5fbaf95bac225.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4378160/normal_5f8cbad44895e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4465702/normal_5fb2c0494f93b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4381528/normal_5fadc0da26c9f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4381788/normal_5f8f35df689ae.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4500199/normal_5fb55a50c7b6c.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://uploads.strikinglycdn.com/files/82761543-117f-4be9-9690-6a49045335ac/xibenunozetovibuvupiwe.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6b6e5b1f-ebcc-4ecf-87cf-273653a90226/sasesoj.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000d189.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD189	4764 bytes
SHA-256: `eccdf953086fea153aeffb11a8da23ea4aa3d299876b2119b674d2cd853588c1`
`font_01_sfnt_off0000e1b6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE1B6	10888 bytes
SHA-256: `229bd9f03741664a56cd09bb04f3da3e38210c9db563ee61ad4378b91147e1ed`
`font_02_sfnt_off00010639.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10639	4324 bytes
SHA-256: `1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361`

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