PDF malware analysis — malicious · 8472788a29f23bcc

MALICIOUS

PDF

70.9 KB Created: 2020-12-09 17:45:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26

MD5: 0ad575ed85d4b99dd0c7f2b81f2f0b5d SHA-1: d01401a0aa7cd3d3f50407e95316e9399961f959 SHA-256: 8472788a29f23bccba34e6f55b5c12c283d83e2b7c2734faad2e7720b8b01b17

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains an embedded URI pointing to a suspicious domain, trafftec.ru, which is likely used for phishing or distributing malware. ClamAV detection and ML classification strongly indicate malicious intent. The document body, though heavily obfuscated, appears to be a lure related to a plant sale, aiming to trick users into visiting the malicious URL.

Machine Learning

Nyx PDF Classifier malicious score 0.9997

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://trafftec.ru/strik?utm_term=gnetum+gnemon+plant+for+sale PDF link annotation
- https://cdn-cms.f-static.net/uploads/4379606/normal_5fa60b65abec3.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4425492/normal_5f9e17fbca238.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/dumupa/44497112481.pdfIn PDF document text
- https://s3.amazonaws.com/juvetaso/hallandale_pharmacy_hcg.pdfIn PDF document text
- https://s3.amazonaws.com/rimejiguvif/basic_concepts_of_computer_engineering.pdfIn PDF document text
- https://s3.amazonaws.com/bisute/aprender_a_leer_musica.pdfIn PDF document text
- https://s3.amazonaws.com/fezenur/19747961843.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f51d3dd5-b4fd-4133-9712-4d6a5dccd313/property_tax_records_for_davidson_county_nc.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8758689e-8eea-4cf1-8b9f-5591f0753a27/sakufipitup.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/45af3aaa-bd40-48d4-b3a7-43bcd51cf9e6/puvegatagumukorerokiw.pdfIn PDF document text
- https://s3.amazonaws.com/gitipelut/bizagi_modeler_free.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_off0000d5eb.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD5EB	5252 bytes
SHA-256: `88334bf676fbde15ecaa88688956d120b3d12d2eb83a6412c34ad940e2986f6c`
`font_01_sfnt_off0000e7bd.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE7BD	12368 bytes
SHA-256: `908ca462bab2c44ae558610b73734c7ac83b29595136faaf14a16e230e00da79`

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