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icreinstall_c.exe

Leg

The installer utilizes InstallCore which may bundle about 3-4 offers for various ad-supported toolbars, extensions and utilities. The application icreinstall_c.exe, “Leg Setup ” has been detected as adware 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 installCore installer, however the file is not signed with an authenticode signature from a trusted source. The setup program uses the InstallCore engine which may bundle additional software offers including toolbars and browser extensions.
Product:
Leg

Description:
Leg Setup

MD5:
4e2f46b1b4cde5e181fefaf04f7be4d8

SHA-1:
ec712a6b03ca5ec2b3d729edf8b9fdc6cf158ab0

SHA-256:
7c5fbd107a4923404edc9f3cdc9563f5c1bf063d56d17546c3dcda98a252b05a

Scanner detections:
1 / 68

Status:
Adware

Explanation:
Uses the InstallCore download manager to install additional potentially unwanted software which may include extensions such as DealPly and various toolbars.

Description:
This is an installer which may bundle legitimate applications with offers for additional 3rd-party applications that may be unwanted by the user. While the installer contains an 'opt-out' feature this is not set be defult and is usually overlooked.

Analysis date:
11/6/2024 5:35:31 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.InstallCore.RE.Installer (M)
16.4.29.16

File size:
1017.5 KB (1,041,958 bytes)

Product version:
5.4.5

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Common path:
C:\users\{user}\appdata\local\temp\icreinstall_c.exe

File PE Metadata
Compilation timestamp:
6/20/1992 7:22:17 AM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
24576:UDq0uHt9g7Kn7mmcHme5wX/T82ZbHHtZeEgDPOTTjGUf6:UuNN9ramve2rRn67L0ai6

Entry address:
0x9C40

Entry point:
55, 8B, EC, 83, C4, C4, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, 86, 94, FF, FF, E8, 8D, A6, FF, FF, E8, 1C, A9, FF, FF, E8, BF, A9, FF, FF, E8, 5E, C9, FF, FF, E8, C9, F2, FF, FF, E8, 30, F4, FF, FF, 33, C0, 55, 68, FC, A2, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, C5, A2, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, C0, 40, 00, E8, 96, FE, FF, FF, E8, C9, FA, FF, FF, 8D, 55, F0, 33, C0, E8, 83, CF, FF, FF, 8B, 55, F0, B8, 24, CE, 40, 00, E8, 32, 95, FF, FF, 6A, 02, 6A, 00, 6A, 01, 8B, 0D, 24, CE...
 
[+]

Entropy:
7.9129

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

Code size:
37 KB (37,888 bytes)

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

http://www.presentlaboratorycenter.com/c?x=q71ZT1He6BmESzLT50gF7Qxxp prPTgnNTrL7M3/2jg=&c=KUnvw40ILbQFoWtKvzRTLAd4vTIk4tpC4qadccfd6PlAGLMW5fsQqbBMaoIeEG VT7z/HSurK4i s8j3daTYqu2scZKBRC9uKeJOGBN8E05wkbq0sbAWXS0Fuq6XD mv&downloadAs=AI_1003H.exe&fallback_url=http://.../get.php?file=05f746a9&m3

The executing file has been seen to make the following network communications in live environments.

TCP (HTTP):
Connects to os.solvefile.com  (207.189.109.121:80)

TCP (HTTP):
Connects to cdnus.solvefile.com  (207.189.109.121:80)

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