PDF malware analysis — malicious · 4a71546dad8ddd35

MALICIOUS

PDF

67.9 KB Created: 2020-12-13 16:46:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 27ce744ead25d9635f601850ab9af0f7 SHA-1: 9b93f9a7f149b45170c160978095947d60fcb256 SHA-256: 4a71546dad8ddd35fb72ef622f22a14fc28bc9bc343251fdb3ad1920af7c45cf

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://trafficel.ru/123?utm_term=ley+4+26+enero+2017 PDF link annotation
- https://cdn-cms.f-static.net/uploads/4407996/normal_5fd125b86f212.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4420468/normal_5fc83eb817eec.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4419836/normal_5fb4fe853d85d.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/977e841a-a2b6-4765-8542-95be7298d16c/5624088640.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7e40df89-9077-4c43-87fe-f195de08bbcf/27824302247.pdfIn PDF document text
- https://s3.amazonaws.com/kavitokolezub/directly_compressible_excipients.pdfIn PDF document text
- https://s3.amazonaws.com/vuxagixil/envato_market_brochure_templates.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1e8c1eb1-9d5f-41ba-ae44-cb394317767a/jamestown_dbq_answers.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1d8b667e-ccce-4714-bdce-42d77cd4c013/36669427106.pdfIn PDF document text
- https://s3.amazonaws.com/gumegulaxi/mitosis_diagram_crossword_answers_key.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6409a387-a3eb-4b60-8365-0aaa644cbcb2/fast_and_furious_1_soundtrack_downlo.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_off0000ca44.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCA44	4952 bytes
SHA-256: `38de998754d8ac5573d116af1d6b56df5aaf38e8bb58d9c2a9a2dda8e78f1239`
`font_01_sfnt_off0000db55.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDB55	11716 bytes
SHA-256: `a364482a21c7e13b139f2130b47c98050feebfaf9f06b47948bae7b9f657b664`

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