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tsuki_tsuki.exe

Rutubo

AVSoftware Ltd

The application tsuki_tsuki.exe, “Rutubo Setup ” by AVSoftware has been detected as a potentially unwanted program 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 setup program uses the InstallCore engine which may bundle additional software offers including toolbars and browser extensions. The file has been seen being downloaded from www.applicationfilesclear.com.
Publisher:
Dom   (signed by AVSoftware Ltd)

Product:
Rutubo

Description:
Rutubo Setup

Version:
5.0.2.1

MD5:
a82bb4b80053c67a3b0b04d505ed0cb0

SHA-1:
06ffbea30115db1366753be11ebafbdbce82909d

SHA-256:
b2ba58fc65748548b2d240bf7e476e83f02684b399e03194f368a3f0829cdde5

Scanner detections:
1 / 68

Status:
Potentially unwanted

Explanation:
Uses the InstallCore download manager to install additional potentially unwanted software which may include extensions such as DealPly and various toolbars.

Analysis date:
1/12/2025 9:53:12 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.InstallCore (M)
16.7.17.7

File size:
968.8 KB (992,064 bytes)

Product version:
2.3.8

File type:
Executable application (Win32 EXE)

Installer:
Inno Setup

Language:
Language Neutral

Common path:
C:\users\{user}\appdata\local\microsoft\windows\inetcache\ie\{random}\tsuki_tsuki.exe

Digital Signature
Signed by:
AVSoftware Ltd

Authority:
GlobalSign nv-sa

Valid from:
12/31/2015 6:55:52 AM

Valid to:
12/31/2016 6:55:52 AM

Subject:
CN=AVSoftware Ltd, O=AVSoftware Ltd, L=Sofia, C=BG

Issuer:
CN=GlobalSign CodeSigning CA - SHA256 - G2, O=GlobalSign nv-sa, C=BE

Serial number:
112134814B6C56AF7047C195AE1D737EC185

File PE Metadata
Compilation timestamp:
6/19/1992 3:22:17 PM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
24576:56WsEh1GXeQO2Our4MkO6H12ro8JG8Gf5l1nRobv:8ch10ZO2OuUu6H0rowyfD0

Entry address:
0xA5F8

Entry point:
55, 8B, EC, 83, C4, C4, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, CE, 8A, FF, FF, E8, D5, 9C, FF, FF, E8, 64, 9F, FF, FF, E8, 07, A0, FF, FF, E8, A6, BF, FF, FF, E8, 11, E9, FF, FF, E8, 78, EA, FF, FF, 33, C0, 55, 68, C9, AC, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, 92, AC, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, C0, 40, 00, E8, 26, F5, FF, FF, E8, 11, F1, FF, FF, 80, 3D, 34, B2, 40, 00, 00, 74, 0C, E8, 23, F6, FF, FF, 33, C0, E8, C4, 97, FF, FF, 8D, 55, F0, 33, C0, E8, B6, C5, FF, FF, 8B, 55...
 
[+]

Entropy:
7.9332

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

Code size:
39.5 KB (40,448 bytes)

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

http://www.applicationfilesclear.com/c?x=0aThYQNOiZjm2bHwuaSoTZLDirMdRETxmObhAl9a3VY=&c=Hrmli0LN9RutFTudERwVu25r/vsE612aBQrnoDJh3tCY7jMy9hrqFkByBJhoKRMMHe2DZkmeHEnL7KPduYNu6H0feMkSVthiZQxHt uXEb2lDbR7dxalFyGZbkMSUFFb&downloadAs=Tsuki_Tsuki.exe&fallback_url=https://s02.solidfilesusercontent.com/NzM3OGY3NGRmNTk0Y2Q4MGYxYzRiZWRlNzkyMTA2YmYwYTc4YmM5MToxYjdkWnE6RXZZVjRUZGdpQlpvLWJRSElLNmgtc2VMTE9V/.../Tsuki_Tsuki!.rar

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