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51df9381-4982-7687-99af-e5db14d1d1fb_1d1c7401aaf148c

Rutubo

AVSoftware Ltd

The file 51df9381-4982-7687-99af-e5db14d1d1fb_1d1c7401aaf148c, “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.tourstagbundle.com.
Publisher:
Dom   (signed by AVSoftware Ltd)

Product:
Rutubo

Description:
Rutubo Setup

Version:
5.0.2.1

MD5:
c97f63a0c5ad9dd09e3d9ed830461058

SHA-1:
3ca5d3ea3cc031c896bb16ce4ae2d1b33e067c91

SHA-256:
f9e6259e48c5012f682959308063b9d7ca25ff9de06474399ff7d42fffc84a04

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 4:31:26 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.InstallCore.AVSoftwa.Installer (M)
16.6.15.0

File size:
968.8 KB (992,064 bytes)

Product version:
2.3.8

Installer:
Inno Setup

Language:
Language Neutral

Common path:
C:\ProgramData\microsoft\microsoft antimalware\scans\filesstash\51df9381-4982-7687-99af-e5db14d1d1fb_1d1c7401aaf148c

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):
24576:56WsEh1GXeQO2Our4MkO6H12ro8JG8Gf5l1nRobv: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...
 
[+]

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

Code size:
39.5 KB (40,448 bytes)

The file 51df9381-4982-7687-99af-e5db14d1d1fb_1d1c7401aaf148c has been seen being distributed by the following URL.

http://www.tourstagbundle.com/c?x=w9ve1t14QItGgk ncUKoM7aEDcKHwA8VLJ3HwoK3Nc4=&c=JEf8oJjnPy5WlDqvOvkb fDEWKwDXzIv/UKfq29QIddgE2bxKFF92zGm42TovXSBtrAyZCEk22Ad9jst8ehEtS9JjaJklZL//DO/rjohRBIXgaSfMvrP9vdUj1y7xPGm&downloadAs=wlsetup-web.exe&fallback_url=http://.../get.php?file=f6ef3d95&m3

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