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win18791drv.exe

The application win18791drv.exe has been detected as a potentially unwanted program by 5 anti-malware scanners. The program is a setup application that uses the Inno Setup 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. The file has been seen being downloaded from downloads.smarttweak.com.
MD5:
14e131d24acf44dd0dd5163b55620470

SHA-1:
0b77707a2f7119bc7fbeb2db58d20583cc3455b6

SHA-256:
7ff313130c10ba79962fc2407813d8ec7547706e2d64ebdabcec043b36fc0563

Scanner detections:
5 / 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:
4/18/2024 5:03:26 AM UTC  (today)

Scan engine
Detection
Engine version

Dr.Web
Adware.InstallCore.120
9.0.1.093

ESET NOD32
Win32/InstallCore.BL
8.9341

F-Prot
W32/InstallCore.R.gen
v6.4.7.1.166

Rising Antivirus
PE:Malware.InstallCore!6.4
23.00.65.14401

Vba32 AntiVirus
Downware.InstallCore
3.12.24.3

File size:
611.1 KB (625,784 bytes)

File type:
Executable application (Win32 EXE)

Installer:
Inno Setup

Common path:
C:\users\{user}\downloads\win18791drv.exe

File PE Metadata
Compilation timestamp:
6/19/1992 6:22:17 PM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
12288:92kOyMJfsBtpbHD2AmLMbXrJPoEwztwYmAXp1IGVCcD6iv6uWgSSXvbjO:1OyMJfsnhKAfXrJwE4GAXocD9CLCX/

Entry address:
0x98CC

Entry point:
55, 8B, EC, 83, C4, CC, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, FA, 97, FF, FF, E8, 01, AA, FF, FF, E8, 2C, CC, FF, FF, E8, 73, CC, FF, FF, E8, 0A, F3, FF, FF, E8, 71, F4, FF, FF, 33, C0, 55, 68, 76, 9F, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, 2C, 9F, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, B0, 40, 00, E8, 9B, FE, FF, FF, E8, 26, FA, FF, FF, 8D, 55, F0, 33, C0, E8, E0, D0, FF, FF, 8B, 55, F0, B8, D8, BD, 40, 00, E8, AB, 98, FF, FF, 6A, 02, 6A, 00, 6A, 01, 8B, 0D, D8, BD, 40, 00, B2, 01, B8...
 
[+]

Entropy:
7.6872

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

Code size:
36 KB (36,864 bytes)

The file win18791drv.exe has been seen being distributed by the following URL.

http://downloads.smarttweak.com/umd/.../Win18791drv.exe

Remove win18791drv.exe - Powered by Reason Core Security
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