PDF malware analysis — malicious · ced29629f5053a66

MALICIOUS

PDF

65.7 KB Created: 2020-12-27 11:36:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12

MD5: cad2a3badb55b828b8a5c0bed6d8c347 SHA-1: 9468c0e3dc3e59a08c816176a7c1e0895a60aa58 SHA-256: ced29629f5053a6666e83ae1546af33484fbf95f931e5105f1a0652a541eb4ad

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is identified as malicious by ClamAV and an ML classifier, with a high-risk score. It contains an embedded URI pointing to 'trafftec.ru', which is flagged as suspicious. The document body, though heavily obfuscated, contains text suggesting a lure related to the 'Amstel Gold Race'. The presence of an external URI and the overall detection suggest a phishing or malware delivery attempt.

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://trafftec.ru/aws?utm_term=lus+2+amstel+gold+race+pdf PDF link annotation
- https://cdn.sqhk.co/karapazepot/icQhfhi/xixufamok.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4413866/normal_5fdbb7126637c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4459628/normal_5fa456909f7fc.pdfIn PDF document text
- https://cdn.sqhk.co/pepegejivo/aiegiCN/wigasuv.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368735/normal_5fd8c790534fe.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4407747/normal_5f96f3520a6ff.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4449618/normal_5fc141124d49f.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4402737/normal_5fcdde5ac8fa9.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/5a84ab03-3212-4265-8043-87e34c3bd546/problemas_sistemas_de_ecuaciones_2_eso.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/36a927bd-fc54-4e1e-80bd-528e848959f5/trkiyenin_aalar_ve_allar_ntv.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_off0000c3b8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC3B8	5548 bytes
SHA-256: `396b2599dff06a48d276a5d6100af97521e0644d239c355eee05f098ad116c69`
`font_01_sfnt_off0000d686.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD686	10648 bytes
SHA-256: `57707621dbb564c45a55de863eb6e044ea84520e4e0e2de3b71200e5aee126af`

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