PDF malware analysis — malicious · 2ed89da6a8b43588

MALICIOUS

PDF

75.4 KB Created: 2021-01-10 04:49:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07

MD5: c9d2ace752e15eefcc36dee4e4da342a SHA-1: b47ae645f6e9e99d39d91b8943547ddb48cdc41e SHA-256: 2ed89da6a8b43588e0b3f2a49f825b1c46fc3d202467e3d7343340027f593c83

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically indicating phishing and Trojan activity. It contains an embedded URI pointing to 'trafffi.ru', which is a strong indicator of a phishing or malware distribution attempt. No scripts were extracted, but the presence of external URIs and the overall malicious verdict suggest the document's purpose is to redirect users to a compromised or malicious site.

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/123?utm_term=of+in+spanish+slang PDF link annotation
- https://cdn-cms.f-static.net/uploads/4368477/normal_5f91631e02b6b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4379474/normal_5f916620a01c9.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4485689/normal_5fb014a2d4866.pdfIn PDF document text
- https://cdn.sqhk.co/kufalavoxig/LhiibMn/xikidapoposev.pdfIn PDF document text
- https://site-1171568.mozfiles.com/files/1171568/43924062670.pdfIn PDF document text
- https://cdn.sqhk.co/tumowara/idcoijX/kalisuxizar.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4482638/normal_5fcba435622c5.pdfIn PDF document text
- https://cdn.sqhk.co/gokitoser/chgcXib/iphone_11_pro_256_digikala.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4366354/normal_5ffa37cab850c.pdfIn PDF document text
- https://cdn.sqhk.co/sebixodof/8idwjaN/cookie_helix_smash_download.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/befarekogol/94854433837.pdfIn PDF document text
- https://s3.amazonaws.com/novipaliwid/80_km_h_ka_m_s.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_off0000ea40.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEA40	5092 bytes
SHA-256: `f55572e2e25921d61d217f8b88f778ced5ccbaed74ae8493572d6a5296e9f8b6`
`font_01_sfnt_off0000fb9b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFB9B	11508 bytes
SHA-256: `f553211332656c5eb0a132f4e8a2abe65c6958bb3cef0ce8c1935ef258310ded`

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