PDF malware analysis — malicious · 6bde591c61950b1e

MALICIOUS

PDF

64.5 KB Created: 2020-11-11 20:06:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14

MD5: f55f590ae3e87f27c55e55872ebcd4a9 SHA-1: cc5e8e79f994a98c0a43450fcfd7edb4e2d65ea7 SHA-256: 6bde591c61950b1e75110c0f4dc1b23e06cec883e84dbd0e85398946d8918833

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains an embedded URL that redirects to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI heuristic suggest an attempt to direct the user to a malicious resource.

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://traffset.ru/123?utm_term=persona+5+moon PDF link annotation
- https://cdn-cms.f-static.net/uploads/4366331/normal_5f895e565efc7.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367643/normal_5f9a5a5b53bb9.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4404955/normal_5f9a4b46b1818.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4448984/normal_5f9ff11307c0d.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/nijosinizo/metastasis_del_cancer_de_tiroides.pdfIn PDF document text
- https://s3.amazonaws.com/kibavutibeved/funeva.pdfIn PDF document text
- https://s3.amazonaws.com/gajabedafot/living_dhamma_ajahn_chah.pdfIn PDF document text
- https://s3.amazonaws.com/mejifavo/22478721682.pdfIn PDF document text
- https://s3.amazonaws.com/rivazixexuguri/native_american_gangs_in_minneapolis.pdfIn PDF document text
- https://s3.amazonaws.com/tobobowu/50115320101.pdfIn PDF document text
- https://s3.amazonaws.com/tamobalasu/lives_of_a_real_housewives.pdfIn PDF document text
- https://s3.amazonaws.com/wazorixekunafob/what_made_gandhi_a_great_leader.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_off0000c3a1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC3A1	4924 bytes
SHA-256: `e547d85ec7150ea9f3b24db91dd939117261ca397102d6b85e40e1da5e2de41c`
`font_01_sfnt_off0000d44b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD44B	9792 bytes
SHA-256: `2e575dcb043a413ea6e1d2cc7799358056e9773d8291e91e54e90d363e64f70d`

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