PDF malware analysis — malicious · 705e939bb72f0d24

MALICIOUS

PDF

64.6 KB Created: 2020-12-21 13:04:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05

MD5: 1bce3366068e22a80ed8affc7d223c1f SHA-1: b2c2728859040199fc3a1db1af1aba0550aa1be8 SHA-256: 705e939bb72f0d240e8f91c70bd161e31efe8954171fa2977153063ad773bafe

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-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://traffset.ru/strik?utm_term=nanjing+swansoft+cnc+simulator+tutorial PDF link annotation
- https://static.s123-cdn-static.com/uploads/4412388/normal_5fdfd6fa2a25c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4385235/normal_5f8d1b4602e98.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366308/normal_5f8c2baa3e3f2.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/fibesezati/descent_into_avernus_maps.pdfIn PDF document text
- https://s3.amazonaws.com/xokebore/alphabet_handwriting_worksheets_for_adults.pdfIn PDF document text
- https://s3.amazonaws.com/xetasif/28536508816.pdfIn PDF document text
- https://s3.amazonaws.com/jeromopelurab/11710634733.pdfIn PDF document text
- https://s3.amazonaws.com/bipepezuwed/manual_calculadora_casio_fx_570ms_espaol.pdfIn PDF document text
- https://s3.amazonaws.com/tetofamuxulil/91984216572.pdfIn PDF document text
- https://s3.amazonaws.com/xixonu/mnemonic_method.pdfIn PDF document text
- https://s3.amazonaws.com/purawuma/southern_colonies_relationship_with_natives.pdfIn PDF document text
- https://s3.amazonaws.com/sajatofubote/email_signature_format_for_student.pdfIn PDF document text
- https://s3.amazonaws.com/badodemebo/gefosewaxu.pdfIn PDF document text
- https://s3.amazonaws.com/woxojuxafopuv/xuwowa.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_off0000bec4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xBEC4	5340 bytes
SHA-256: `de7d6c3540ab7de541afedff5fa761dfd3f7df658d3b16cbd5967f089d246d70`
`font_01_sfnt_off0000d0f6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD0F6	11212 bytes
SHA-256: `0d78ade9988fec79180864b18820beb0860824ecd5a5ad6659e1d337c3d65973`

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