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setup_mj.exe

Tucows Inc.

The application setup_mj.exe by Tucows has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. The program is a setup application that uses the Inno Setup installer. The file has been seen being downloaded from cdn.tucowsdownload.com.
Publisher:
Tucows Inc.  (signed and verified)

MD5:
367683ddf6e27f014346cc15879d1cb5

SHA-1:
79151eaf3f2cb2d9f9e5735fad7045bcccff6499

SHA-256:
4fa7ae3f9cd60d60250e4b94eeefe3c86dd841d4f663604181cb8753e943d85d

Scanner detections:
1 / 68

Status:
Adware

Note:
Our current pool of anti-malware engines have not currently detected this file, however based on our own detection heuristics we feel that this file is unwanted.

Analysis date:
4/16/2024 8:43:20 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Tucows.Installer (M)
16.5.21.1

File size:
675 KB (691,224 bytes)

File type:
Executable application (Win32 EXE)

Installer:
Inno Setup

Common path:
C:\users\{user}\downloads\setup_mj.exe

Digital Signature
Signed by:
Tucows Inc.

Authority:
COMODO CA Limited

Valid from:
8/21/2013 3:00:00 AM

Valid to:
8/21/2016 2:59:59 AM

Subject:
CN=Tucows Inc., O=Tucows Inc., STREET=96 Mowat Ave., L=Toronto, S=Ontario, PostalCode=M6K 3M1, C=CA

Issuer:
CN=COMODO Code Signing CA 2, O=COMODO CA Limited, L=Salford, S=Greater Manchester, C=GB

Serial number:
4A452F2DD2EEA6072814A28EF2F01AEE

File PE Metadata
Compilation timestamp:
6/20/1992 1:22:17 AM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
12288:smFatRsu1fTgAvt7xql4cSG4nmwxMXWR2fd1JyBT7YO+lR8EWkCSMpngPewZN0:smFKRsqU4XzmwK9hJjDMdkew

Entry address:
0x9C40

Entry point:
55, 8B, EC, 83, C4, C4, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, 86, 94, FF, FF, E8, 8D, A6, FF, FF, E8, 1C, A9, FF, FF, E8, BF, A9, FF, FF, E8, 5E, C9, FF, FF, E8, C9, F2, FF, FF, E8, 30, F4, FF, FF, 33, C0, 55, 68, FC, A2, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, C5, A2, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, C0, 40, 00, E8, 96, FE, FF, FF, E8, C9, FA, FF, FF, 8D, 55, F0, 33, C0, E8, 83, CF, FF, FF, 8B, 55, F0, B8, 24, CE, 40, 00, E8, 32, 95, FF, FF, 6A, 02, 6A, 00, 6A, 01, 8B, 0D, 24, CE...
 
[+]

Entropy:
7.7727

Packer / compiler:
Inno Setup v5.x - Installer Maker

Code size:
37 KB (37,888 bytes)

The file setup_mj.exe has been seen being distributed by the following URL.

http://cdn.tucowsdownload.com/?ic_user_id=579

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