PDF malware analysis — malicious · 23d18361d1a9bef0

MALICIOUS

PDF

77.5 KB Created: 2021-03-18 03:48:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 704853aba5cf70963408dc60749362b8 SHA-1: 2318440aea667dcf065b2ca7dbb25254d66d1ba9 SHA-256: 23d18361d1a9bef0a6ecce6adfa5c4fe692492e2ca918c98d795a8dfbf3b2bec

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains an embedded URL that, when clicked, redirects to a suspicious domain. This domain is likely used to host phishing content or download further malicious payloads. The ML classifier and ClamAV detection strongly indicate malicious intent, consistent with a phishing lure.

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://zajinet.ru/strik?utm_term=the+bfg+full+movie+1989
- https://static.s123-cdn-static.com/uploads/4480598/normal_5fde86269aa4e.pdf
- https://static.s123-cdn-static.com/uploads/4479436/normal_5ff2599ebf179.pdf
- https://rorujazikuje.weebly.com/uploads/1/3/1/3/131379225/fe87dd3b38b43.pdf
- http://bluebadgeform.com/81028148715p8rmh.pdf
- https://cdn-cms.f-static.net/uploads/4368497/normal_600dce9b87ad4.pdf
- http://pasetbs.xyz/bootstrap_3_form_button_inlinepsa7r.pdf
- https://cdn-cms.f-static.net/uploads/4459784/normal_5fdabc6c84692.pdf
- http://zoo-taxi.site/7230406437110cbi.pdf
- https://sukorason.weebly.com/uploads/1/3/4/5/134578332/c7ee5e4c06195.pdf
- http://voirly.xyz/dawaliburuvusutixamibop8wsf.pdf
- http://jakartapro.xyz/free_grammar_lapbook_templatesye342.pdf
- https://kitigenuripoduj.weebly.com/uploads/1/3/1/0/131070171/jotafirujumeta.pdf
- http://mikrotikwizard.com/28976275383438nj.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://uploads.strikinglycdn.com/files/42024206-ff55-4518-9fc6-54dc81b37b25/gor_books_by_john_norman.pdf
- https://uploads.strikinglycdn.com/files/21617369-be48-4b2c-a81e-6235cfa7514f/jotul_602_parts_list.pdf
- https://uploads.strikinglycdn.com/files/54553fb6-d0cc-4ab5-bf08-aeb66e2bcade/wotujipubip.pdf
- https://2903667b-e544-4972-ac7f-e5855aaa9b37.filesusr.com/ugd/2cc660_553a65c6bd9d48dea392f00ce8e05bad.pdf?index=true
- https://e668d0bc-6b9c-4787-ac64-5363b724ef62.filesusr.com/ugd/6ec699_1491496f8f084cb0b3ec148f1ad1c9b1.pdf?index=true
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000f15d.bin` `56803995b23819f28088ab0fda4773cbb373bc94b3a030a42369bddd53f8129e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF15D	5248 bytes
`font_01_sfnt_off0001032d.bin` `c08c4af100dab7412467ab88a12be780d94cab2f89541f59292a5810dc70fd28`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1032D	11184 bytes

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