PDF malware analysis — malicious · f0a774d80fa54ab6

MALICIOUS

PDF

69.4 KB Created: 2021-01-03 02:32:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22

MD5: 89f1d54872be921bdc3083d9067a4b9f SHA-1: 79272fd5830c47b4b992f0a316963ce94f56f4d7 SHA-256: f0a774d80fa54ab607eb2818a46ea64da183a5ff625c1732d54dc86e34db1850

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is identified as malicious by ML classifiers and ClamAV, with a high risk score. It contains an embedded URL pointing to a suspicious domain, which is likely used to deliver a malicious payload or conduct phishing. The document body, though partially corrupted, suggests a lure related to guitar lessons, aligning with common social engineering tactics.

Machine Learning

Nyx PDF Classifier malicious score 0.9997

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://traffnew.ru/123?utm_term=how+to+play+stairway+to+heaven+on+guitar+part+3 PDF link annotation
- https://static.s123-cdn-static.com/uploads/4456984/normal_5fdfcada26cd7.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4447436/normal_5f9fddbc18097.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4420745/normal_5fbf3df029038.pdfIn PDF document text
- https://cdn.sqhk.co/wuseguwe/heiges0/agile_methodology_swot.pdfIn PDF document text
- https://xawavefite.weebly.com/uploads/1/3/4/6/134667803/wemijip.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4419218/normal_5f9f3263031dc.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/pizivurapab/65416271850.pdfIn PDF document text
- https://s3.amazonaws.com/poguvelefa/6543952468.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/180d5120-9fef-423e-90cb-59bddbc6285e/nikon_monarch_3_6-24x50.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0bbd1ed8-7405-4f87-8f6e-76064484e9ee/gurejewidimopusefev.pdfIn PDF document text
- https://s3.amazonaws.com/lowuwofuxali/hollow_knight_speedrun_guide_steam.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_off0000d215.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD215	5460 bytes
SHA-256: `3bc1d911c63b1aa0c2a87907a940b1d544c0c1d1566ce977e0111e037868c62a`
`font_01_sfnt_off0000e4c1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE4C1	10568 bytes
SHA-256: `8194f916b49ee4e91a2b9b1179415d6a8835eada83591a519f82019dede4440c`

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