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mkvtoolnix-unicode-2.9.8-setup.exe

The executable mkvtoolnix-unicode-2.9.8-setup.exe has been detected as malware by 4 anti-virus scanners. The program is a setup application that uses the Nullsoft Install System installer, however the file is not signed with an authenticode signature from a trusted source. The file has been seen being downloaded from mkvtoolnix.download and multiple other hosts.
MD5:
7b3870c573b4a9ad65de23db4e49403f

SHA-1:
4d467153869ec6faa1d7e38e4639da5debfd0121

SHA-256:
e27e6ca35fc5c1d2cfdd21492f38788cb7ee00b033a1421ef21ca48be6f34b3f

Scanner detections:
4 / 68

Status:
Malware

Explanation:
This is part of the Crossrider Internet browser extension framework which may modify the user's web browser settings including changing the home and search pages.

Note:
Crossrider is the owner of a platform that enables the creation of cross-browser extensions by developers but is not the owner of this detected application.

Analysis date:
1/12/2025 8:14:28 PM UTC  (today)

Scan engine
Detection
Engine version

Bkav FE
HW32.Packed
1.3.0.6185

McAfee
Artemis!A93C83177B5F
5600.6896

Reason Heuristics
Threat.Win.Reputation.IMP
16.12.2.14

ViRobot
JS.A.Iframe.4916144
2011.4.7.4223

File size:
4.7 MB (4,916,144 bytes)

File type:
Executable application (Win32 EXE)

Installer:
Nullsoft Install System

Common path:
C:\users\{user}\downloads\mkvtoolnix-unicode-2.9.8-setup.exe

File PE Metadata
Compilation timestamp:
3/27/2009 4:38:47 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.56

CTPH (ssdeep):
98304:1WdwxMaloiwHvGrjLmdRSn8CPxSP78uoX7uab0WS8EcOBmXC:1DtlmHOT7xSPguoLw86cXC

Entry address:
0x39B0

Entry point:
55, 89, E5, 57, 56, 53, 81, EC, 7C, 01, 00, 00, E8, 13, 4B, 00, 00, 83, EC, 0C, 68, 01, 80, 00, 00, E8, 76, 44, 00, 00, 6A, 00, E8, 4F, 4B, 00, 00, A3, 88, 0C, 4A, 00, 6A, 08, E8, 72, 28, 00, 00, A3, 38, 0D, 4A, 00, 8D, 85, 90, FE, FF, FF, 6A, 00, 68, 60, 01, 00, 00, 50, 6A, 00, 68, A4, A2, 40, 00, E8, 04, 4A, 00, 00, 83, EC, 0C, 68, A5, A2, 40, 00, 68, 68, 0D, 4A, 00, E8, 92, 2A, 00, 00, 83, C4, 18, E8, 3A, 44, 00, 00, 52, 52, 50, 68, 00, 30, 56, 00, E8, 7D, 2A, 00, 00, 57, 6A, 00, E8, F5, 42, 00, 00, 83...
 
[+]

Entropy:
7.9865  (probably packed)

Code size:
29.5 KB (30,208 bytes)

The file mkvtoolnix-unicode-2.9.8-setup.exe has been seen being distributed by the following 2 URLs.

https://mkvtoolnix.download/windows/releases/.../mkvtoolnix-unicode-2.9.8-setup.exe

http://www.hack7mc.com/.../36

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