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windows_8_by_ashtric.exe

Rutubo

AVSoftware Ltd

The application windows_8_by_ashtric.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.signbitsfun.com.
Publisher:
Dom   (signed by AVSoftware Ltd)

Product:
Rutubo

Description:
Rutubo Setup

Version:
5.0.2.1

MD5:
6043ea7478605e17d7bf7c20de919b10

SHA-1:
886b90a2501990b8a31e0c144892c60e16ed079e

SHA-256:
2c966817533280807dd2362ee8399db19f18543e8c293de542cf5b43c57dc898

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 4:23:43 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.InstallCore.AVSoftwa.Installer (M)
16.6.18.0

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\temporary internet files\content.ie5\{random}\windows_8_by_ashtric.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:C6WsEh1GXeQO2Our4MkO6H12ro8JG8Gf5l1nRobv:zch10ZO2OuUu6H0rowyfD0

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 windows_8_by_ashtric.exe has been seen being distributed by the following URL.

http://www.signbitsfun.com/c?x=Qdw/AU8afSEJ1Z7QNadOovbQQIfFEo0abvyDFGUTMes=&c=N7jJCmu1NTMNvQxXGpU9mYKXsSe4Isqbc uo8KXtixbdEHx5dAa9KloZ/sOd9dNZUqdr4wONzoav80M1n9w xwOkes1kJsAJr6zSD2h6J4E8jOt2R2JzwrX6t4qX0WYP&downloadAs=Windows_8_By_Ashtric.exe&fallback_url=https://s03.solidfilesusercontent.com/MzNjZmRmYmRjNzIwZTcyODhkYTIwOThmMzM0NmZmNGE3NDczNmY3MzoxYkNDWDA6Mm9KWXQ3cElzMXBfWnFDa2kwbFJNeHFaOTNn/.../Windows_8_By_Ashtricks.zip

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