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weboptimumsetup.exe

The application weboptimumsetup.exe has been detected as a potentially unwanted program by 4 anti-malware scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer, however the file is not signed with an authenticode signature from a trusted source. The file has been seen being downloaded from www.bscood.com.
MD5:
64f02a388a09b57a85dea55bf5ba6244

SHA-1:
10adccafdadbf48ed3749359c9707abd7331de3e

SHA-256:
ed344d82d0bc714fbc2c2649443284ed0802237323b99d5962515d183d56a8ab

Scanner detections:
4 / 68

Status:
Potentially unwanted

Analysis date:
4/23/2025 1:43:55 AM UTC  (today)

Scan engine
Detection
Engine version

Kaspersky
not-a-virus:HEUR:AdWare.Win32.Generic
14.0.0.704

Panda Antivirus
Generic Suspicious
16.02.06.03

Qihoo 360 Security
HEUR/QVM42.0.Malware.Gen
1.0.0.1120

Reason Heuristics
Trojan.Downloader (M)
16.11.17.0

File size:
3.1 MB (3,216,650 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\appdata\local\microsoft\windows\inetcache\ie\{random}\weboptimumsetup.exe

File PE Metadata
Compilation timestamp:
11/21/2007 10:25:14 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
8.0

CTPH (ssdeep):
49152:XnUGLEgxmxO8MgHLXzks/dba0OPKsq46QBwkoRa412bDtopZUoyOGESPt/93:XnzwgxmAgTla0Rsq1InoRaf6fU9OoD3

Entry address:
0x33B6

Entry point:
81, EC, D4, 02, 00, 00, 53, 55, 56, 57, 6A, 20, 33, DB, 5E, 89, 5C, 24, 18, C7, 44, 24, 10, 40, 86, 40, 00, 89, 5C, 24, 14, FF, 15, 30, 80, 40, 00, 68, 01, 80, 00, 00, FF, 15, B4, 80, 40, 00, 53, FF, 15, B0, 82, 40, 00, 6A, 08, A3, D8, A5, 42, 00, E8, 0D, 26, 00, 00, 53, 68, B4, 02, 00, 00, A3, E0, A4, 42, 00, 8D, 44, 24, 38, 50, 53, 68, 3C, 86, 40, 00, FF, 15, 80, 81, 40, 00, 68, 24, 86, 40, 00, 68, E0, 94, 42, 00, E8, DD, 24, 00, 00, FF, 15, B0, 80, 40, 00, 50, BF, 00, 50, 43, 00, 57, E8, CB, 24, 00, 00...
 
[+]

Entropy:
7.9989

Packer / compiler:
Nullsoft install system v2.x

Code size:
24.5 KB (25,088 bytes)

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

http://www.bscood.com/down/.../WebOptimumSetup.exe

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