PDF malware analysis — malicious · 388d7251cb0f8f90

MALICIOUS

PDF

69.8 KB Created: 2020-12-24 08:43:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05

MD5: b0c91aa50a737b6309716141e25bf305 SHA-1: e8b63076d041e0c2ed47ef91134e4b095288bb2a SHA-256: 388d7251cb0f8f90e1132613346c0f33c8949b9f249d024ade2d73127cdb71fd

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains an embedded URL that leads to a suspicious domain, identified by heuristics and a machine learning classifier as malicious. ClamAV also detected it as a phishing trojan. The document body, though heavily obfuscated, appears to contain keywords related to product sales, suggesting a phishing lure.

Machine Learning

Nyx PDF Classifier malicious score 0.9995

Heuristics 4

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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?utm_term=fidget+spinner+for+sale+port+elizabeth PDF link annotation
- https://cdn.sqhk.co/vopufepivipe/iybDidY/sukewibap.pdfIn PDF document text
- https://cdn.sqhk.co/ludibipimilu/cjbhdxP/hearts_of_iron_sabaton_live.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/4b6affce-35cd-4d12-aefe-978bc0419cf1/wetugex.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/49ceafba-b2c5-452b-8f5b-8d488d8071cd/85161493968.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/17ca3931-510f-436f-b2e8-d4518e962995/90678675786.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7b3ac85e-04e4-4ff2-a1f0-d5a678c5b88e/96025368201.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c226725c-3f80-4ed1-966f-b3b2a216018f/la_nuit_obscure_de_l_me.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/89a11d2c-faa8-45bb-b97f-dc9b06c71b11/floating_ice_chest_academy.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/daafddae-fc25-46fa-b608-bf9970a5f38c/mavimuvuj.pdfIn PDF document text
- https://s3.amazonaws.com/dowavelaxam/26387303087.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_off0000d317.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD317	5448 bytes
SHA-256: `92429081a7f46c6a8a2f0cc8d2706f9c5ff3bd9afab21e6b9888c2b7218c5fa9`
`font_01_sfnt_off0000e59f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE59F	10848 bytes
SHA-256: `f8f06d6ba2fc9ff92568e80fc8167fa5aaa35fb5caf110ea4aee6fbf2260cca9`

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