PDF malware analysis — malicious · 9b6c99710158b710

MALICIOUS

PDF

74.3 KB Created: 2021-05-10 03:02:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 14a1e36869be06a75641b54231af5176 SHA-1: 255a4e901d6ddeb1513e0b7e828bd566023e862c SHA-256: 9b6c99710158b7109092ad264d93478fe3b0c9b48d5d0663163c5c7a84f68d17

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 malicious domain, likely to deliver a phishing lure or malware. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to exploit users by directing them to a compromised site.

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://xezojetit.ru/strik?utm_term=what+are+the+qualities+of+a+christian
- https://cdn-cms.f-static.net/uploads/4496204/normal_6062d7bdd3802.pdf
- http://tipografiyav.moscow/portland_trail_blazers_schedule8psee.pdf
- https://cdn-cms.f-static.net/uploads/4370555/normal_605c02b4e3388.pdf
- https://static.s123-cdn-static.com/uploads/4504839/normal_5fc5cd95b485d.pdf
- https://static.s123-cdn-static.com/uploads/4421781/normal_60080af30aed4.pdf
- https://cdn-cms.f-static.net/uploads/4454995/normal_601c9de26e73e.pdf
- https://static.s123-cdn-static.com/uploads/4491432/normal_5fcedd4e4bfa8.pdf
- http://qwert-ita.fun/322821542917333j.pdf
- http://wildboost.club/xivanipujimn47io.pdf
- https://cdn-cms.f-static.net/uploads/4491436/normal_602e366b3a97b.pdf
- https://cdn-cms.f-static.net/uploads/4402280/normal_604376c812452.pdf
- https://cdn.sqhk.co/ribafesupuro/hjhhiij/vocopro_da_900_digital_karaoke_mixer_with_eq.pdf
- https://cdn-cms.f-static.net/uploads/4460045/normal_602711ca9df80.pdf
- https://cdn.sqhk.co/pemoxeriko/JFkjjhY/install_extreme_tux_racer_ubuntu.pdf
- https://cdn-cms.f-static.net/uploads/4501380/normal_603bdabd62d97.pdf
- http://fasad-dom.site/how_to_calculate_shipping_costseybhy.pdf
- http://finansi-7.online/literilofamo5nogk.pdf
- https://cdn.sqhk.co/lepezusija/5sFidTo/1562806950.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- 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_off0000e4d0.bin` `9036e8ecd761b4b4a5d71a4a364191e8e4818898b7f72fc4018d4e0f11e221f7`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE4D0	5108 bytes
`font_01_sfnt_off0000f63e.bin` `f243243f36559d58b20802ad50e830c3912cb8dbd39778b3519a6a2774712705`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF63E	10584 bytes

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