PDF malware analysis — malicious · 59cc595c872fcd0e

MALICIOUS

PDF

79.7 KB Created: 2020-11-16 13:13:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02

MD5: 1a21af34318b3f48d1edb30e5ec0d650 SHA-1: dcc39d3ce1059315398b4e81e8c1429ca994b1ca SHA-256: 59cc595c872fcd0e2127e910d2918950e54f4a459deff1bd448fb6a478239045

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://trafffe.ru/strik?utm_term=lenguaje+ensamblador+pdf PDF link annotation
- https://cdn-cms.f-static.net/uploads/4366662/normal_5faa0402309ed.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4370996/normal_5fa8891921da0.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4380228/normal_5fa8601f18d8b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4446380/normal_5f9f45ddf2d29.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4379844/normal_5f95bc093be93.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4473322/normal_5fa9d329b6e21.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4404113/normal_5fa6369b0f0ed.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/juzinaramip/jusavola.pdfIn PDF document text
- https://s3.amazonaws.com/fenatagazise/72406719297.pdfIn PDF document text
- https://s3.amazonaws.com/vuzotisenixava/dragalia_lost_reroll_guide.pdfIn PDF document text
- https://s3.amazonaws.com/pazifetanegapu/49236586662.pdfIn PDF document text
- https://s3.amazonaws.com/takateg/pdf_to_word_converter_software_free_download_nitro.pdfIn PDF document text
- https://s3.amazonaws.com/zugutixe/act_upon_information_meaning.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_off0000f932.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF932	5516 bytes
SHA-256: `5423e0a8cc2ad051ba0c6ef2a1519d0e77d9a107ebb6e877bd99abe53c6da21e`
`font_01_sfnt_off00010be1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10BE1	11628 bytes
SHA-256: `659dc37a577961457416f41aa1b975366334d1d96046acae18beacfe1bce528f`

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