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54th_modpack.exe

Rutubo

AVSoftware Ltd

The application 54th_modpack.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:
afa9fe9aebce4f2a8be83d87a5104ea4

SHA-1:
cc80ffef4f80c95725c579a8f28727c746eec7a2

SHA-256:
bf60298794de6ab523b7e26827a80077e0d94421fabf3653d80bbc1ac723eef1

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 4:15:25 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.InstallCore.AVSoftwa.Installer (M)
16.6.25.12

File size:
968.8 KB (992,064 bytes)

Product version:
2.3.8

File type:
Executable application (Win32 EXE)

Installer:
Inno Setup

Common path:
C:\users\{user}\appdata\local\microsoft\windows\temporary internet files\content.ie5\{random}\54th_modpack.exe

Digital Signature
Signed by:
AVSoftware Ltd

Authority:
GlobalSign nv-sa

Valid from:
12/31/2015 3:55:52 PM

Valid to:
12/31/2016 3:55:52 PM

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:
6/20/1992 12:22:17 AM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
24576:U6WsEh1GXeQO2Our4MkO6H12ro8JG8Gf5l1nRobv:1ch10ZO2OuUu6H0rowyfD0

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...
 
[+]

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

Code size:
39.5 KB (40,448 bytes)

The file 54th_modpack.exe has been seen being distributed by the following URL.

http://www.signbitsfun.com/c?x=7PaRljfJRJysJohxOExySlxQdcRk4EGlpXD853Q5iW8=&c=mBlkMEIwqPQ/5aoUgJpPFhdq34e 4 CGwBxkrzQwmxUe4bvp7okRXTvFuSM7SphH0qakpRSat/p0qcDk6iNvvLaniNhOjghOZECMJ6QcLulsJ9cf77mtjkTI8Y1hVjaY&downloadAs=54Th_Modpack.exe&fallback_url=https://s04.solidfilesusercontent.com/MjhmYWVmNzdkOTUwYzVjM2U4YTE0NmNhNDc5NjQwYjZlZTk3Mzc0MToxYkM1Z2c6UFByaUFCV3JEbERfenNzcnI1eGZGcWdTaERr/.../54Th_Modpack.rar

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