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en1437part1.exe

Rutubo

AVSoftware Ltd

The application en1437part1.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.metaappgift.com.
Publisher:
Dom   (signed by AVSoftware Ltd)

Product:
Rutubo

Description:
Rutubo Setup

Version:
5.0.2.1

MD5:
73239bc884c97c0f441ff51213b89af9

SHA-1:
8937886e62657cdd27f09fc15d46d24c4ed9fd09

SHA-256:
03c1bb07521bf94502c738ce93f3620488d0bd7f2d25ffefc4fcdab86ad6c2e4

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:
11/5/2024 1:51:54 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.InstallCore.AVSoftwa.Installer (M)
16.7.6.2

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}\en1437part1.exe

Digital Signature
Signed by:
AVSoftware Ltd

Authority:
GlobalSign nv-sa

Valid from:
12/31/2015 10:55:52 PM

Valid to:
12/31/2016 10:55:52 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 6:22:17 AM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
24576:z6WsEh1GXeQO2Our4MkO6H12ro8JG8Gf5l1nRobv:Och10ZO2OuUu6H0rowyfD0

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 en1437part1.exe has been seen being distributed by the following URL.

http://www.metaappgift.com/c?x=w /q2r TmAVG3MLF3Dbkph3Ymm/EMeIjYyayGV0MauU=&c=htWFTQ LrJRtwzo0VV0xRVaykiF4FRPTeZ 8VbRCrQAF lOzp5zRLCQfh7DBmtiizXHqR5ncyezaHI77VyCA3NyAhRoyvGmE1WIII6jyg8gUP6bGUpxDk58oL4x4OTx0&downloadAs=en1437part1.exe&fallback_url=http://.../get.php?file=bf8aa2c2&m3

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