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kath.exe

Internet

AVSoftware Ltd

The application kath.exe, “Internet 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.softwarelaboratorymega.com.
Publisher:
AVSoftware Ltd  (signed and verified)

Product:
Internet

Description:
Internet Setup

Version:
1.2.2.1

MD5:
14e5fd129187cbf78ad92f7be7aab2e1

SHA-1:
2e42e39c236ac9f2bd38e0e4077a8a664a7a7129

SHA-256:
190718744b4a83025ffa66d102b6132a491d53ac3ce2b2919df38b0ccbf6c32f

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:
11/24/2024 7:56:32 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.InstallCore.AVSoftware.Installer (M)
16.1.31.3

File size:
934.8 KB (957,256 bytes)

Product version:
4.8.6

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}\kath.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:HW7lqWsXE3hsBbBfh+xnec+1E6NrF8GxT0oTah+ETy:HqsbE3cBfck1gEQoTWTy

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:
7.9305

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

Code size:
39.5 KB (40,448 bytes)

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

http://www.softwarelaboratorymega.com/c?x=5UZ7rPYtYjRu6/VfYf9imFQsDP1hsDo0xf0D5AVwMm4=&c=ScejFT KaAIUortJfz/mZiWxpgoW29O0EZovyeCacn/M4RseeLWt/bpALhNT2EDeWEUhGZ7ERUNKs1M5pg/36HkCJyeagQ2FaUb2HeoLKzdnLlp2nRQEmT9/Mn8kPUVw&downloadAs=Kath.exe&fallback_url=http://.../get.php?file=e6cc528f&m3

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