PDF malware analysis — malicious · 9de42a43817ccdce

MALICIOUS

PDF

63.0 KB Created: 2020-11-14 18:01:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 86e38b02d090eb4de0e5eb6c8db3ae8b SHA-1: 92d0b7a6295cc4d76b8eccb88e93806b5aa10df3 SHA-256: 9de42a43817ccdce2c42fbb97a51f9ed9fa91a1936c5c329546cc5230cb98e1f

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

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://trafffi.ru/strik?utm_term=sumas+de+2+cifras+sin+llevar+para+imprimir PDF link annotation
- https://bupifepubeweta.weebly.com/uploads/1/3/4/3/134336259/b75a3756e5f8cd.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366327/normal_5f8e8d5207374.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/vobuturinivi/58270635967.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/01d96811-5280-4647-9f28-3c14e43773ca/a_cesta_da_dona_maricota_sequencia_didatica.pdfIn PDF document text
- https://s3.amazonaws.com/wizidimawag/gaguboxuwobida.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/26c711d7-4a98-4577-8b5a-035a0306f886/38395744070.pdfIn PDF document text
- https://s3.amazonaws.com/muvazi/865572817.pdfIn PDF document text
- https://s3.amazonaws.com/gujutavevive/tamil_to_english_proverbs.pdfIn PDF document text
- https://s3.amazonaws.com/gumegulaxi/73135344670.pdfIn PDF document text
- https://s3.amazonaws.com/ligole/mobebi.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f0c0609c-38a8-401f-a616-ed77a5c0b038/67164343321.pdfIn PDF document text
- https://s3.amazonaws.com/rupatojuko/singer_featherweight_for_sale_canada.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_off0000b745.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB745	5596 bytes
SHA-256: `5f6c544d5005efa1b757471aa7d033a647f23ab4b459fbb980849d73a79e9af7`
`font_01_sfnt_off0000ca46.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCA46	10848 bytes
SHA-256: `23e2cbe47f628f460660bda6367e5574ec1ba12d27fb3265de30b5b273ccf904`

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