PDF malware analysis — malicious · 7c769c7be4c6de7b

MALICIOUS

PDF

68.0 KB Created: 2021-02-17 03:05:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23

MD5: fa7f519006c4ef2478eb300dc14de183 SHA-1: a2028a38ad2209ef21398ef383440420084bd9b5 SHA-256: 7c769c7be4c6de7b1eed6883d08e55c1b990a33b0169c622dc6f4ac6b920cd84

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'leonvi.ru', which is likely part of a phishing or malware distribution scheme. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to trick users into visiting a malicious site, potentially leading to further compromise.

Machine Learning

Nyx PDF Classifier malicious score 0.9995

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://leonvi.ru/123?utm_term=honda+maintenance+codes+b123 PDF link annotation
- http://justiciaforjustice.com/earn_to_die_2_hacked_unlimited_money_pccp2e9.pdfIn PDF document text
- http://ru-1.casa/john_dewey_high_school_50_avenue_x_brooklyn_ny_11223plmku.pdfIn PDF document text
- https://cdn.sqhk.co/janawezexoj/hiifBRV/bouncy_dunk_silvergames.pdfIn PDF document text
- https://vuwakoge.weebly.com/uploads/1/3/4/3/134368269/6407096.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4379733/normal_5ffa40f2630bd.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4381735/normal_5ffa70ab42143.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4418370/normal_601f57408cd03.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4475564/normal_5ff7a2e2ae1e9.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4449172/normal_6026de1422cf6.pdfIn PDF document text
- https://cdn.sqhk.co/jigotove/jJehdhb/dejakitomupeduzugosuf.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000cb76.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCB76	5404 bytes
SHA-256: `eca566573e66ee93d89ae363944c2d4421f067efe4b73d9cb6e49bddc9f7ef8d`
`font_01_sfnt_off0000ddca.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDDCA	11116 bytes
SHA-256: `cb93f69b6b747f6c8b836a5d277e0bf2f7899eb117a3281ecf1f20d9347fc146`

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