PDF malware analysis — malicious · 9d4fd5afb01975af

MALICIOUS

PDF

65.3 KB Created: 2020-11-11 13:21:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07

MD5: 04d1914cf1375cce1f2f27e74c3e51a2 SHA-1: 0063f5ac07b9c1f596c0c5d00176854a1d0701be SHA-256: 9d4fd5afb01975af70f816340c5783706920dbdf1411feee27bda4aa816c996a

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 as a phishing trojan. It contains an embedded URI pointing to 'traffine.ru', which is likely part of the attack chain. The document body appears to be obfuscated or corrupted, but the presence of the malicious URL and the strong heuristic detections indicate a phishing or malware delivery attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9996

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://traffine.ru/strik?keyword=to+sleep+no+doubt+to+dream+40+studies PDF link annotation
- https://cdn-cms.f-static.net/uploads/4385869/normal_5f8fdbcf1baf7.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4371807/normal_5f8c426d221f0.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4466661/normal_5faa815464503.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4446923/normal_5fa6dc91cd579.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/77768140-783a-4eb4-b9ad-06482478ef0e/50028074211.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8412864a-5795-4c8b-8cec-555bcb4ec11d/43644620754.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a950a6a9-d7b1-4030-9f5b-17c4475e90f9/65976957179.pdfIn PDF document text
- https://s3.amazonaws.com/mejados/fakikowodakil.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/80749c98-c691-427e-b5a2-3e8df95712ce/jojo_rabbit_full_movie_free_google_drive_english.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ea7b43c5-2d25-40ad-9d92-0c5d8b7396dd/79035941676.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_off0000c272.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC272	5424 bytes
SHA-256: `45701713cdc2ee4d902b2d2942918fe0c4faafc255fa76bcde8b705c003d83d1`
`font_01_sfnt_off0000d4bf.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD4BF	10616 bytes
SHA-256: `4803091ef02f10a43025ab4cffe17ad7a8869d0505f5a11ff5de40bdb488e4d3`

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