rexsa-web-cam-driver-windows-drv.exe

oTweak Software LLC

The application rexsa-web-cam-driver-windows-drv.exe by oTweak Software has been detected as a potentially unwanted program by 5 anti-malware scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. The file has been seen being downloaded from downloads.otweak.com and multiple other hosts.
Publisher:
oTweak Software LLC  (signed and verified)

MD5:
f56daba4271b95d7ab6f6056ab3847e4

SHA-1:
e05520c1e346cf8aad8890a5b4cf90cd3fe9253b

SHA-256:
cfba708a226905910bb5b5202c9b36912bea202714576d521bb04cbcddf21222

Scanner detections:
5 / 68

Status:
Potentially unwanted

Analysis date:
11/16/2024 10:06:52 AM UTC  (today)

Scan engine
Detection
Engine version

Bkav FE
W32.HfsAdware
1.3.0.6379

Dr.Web
Program.Unwanted.257
9.0.1.0136

NANO AntiVirus
Riskware.Nsis.Unwanted.dpybkw
0.30.24.1357

Reason Heuristics
PUP.oTweak.Optional.Installer.Meta (L)
15.12.1.12

Trend Micro House Call
Suspicious_GEN.F47V0507
7.2.136

File size:
3.6 MB (3,751,440 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\downloads\rexsa-web-cam-driver-windows-drv.exe

Digital Signature
Authority:
thawte, Inc.

Valid from:
3/5/2015 5:30:00 AM

Valid to:
3/5/2017 5:29:59 AM

Subject:
CN=oTweak Software LLC, O=oTweak Software LLC, L=Rostov-Na-Donu, S=Rostovskaya obl., C=RU

Issuer:
CN=thawte SHA256 Code Signing CA, O="thawte, Inc.", C=US

Serial number:
1BA315B89D1AF7C2CB153F29392B2B78

File PE Metadata
Compilation timestamp:
12/6/2009 4:20:52 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
98304:6vdL+xLHqLS2GEygs29byZi0LGntb0NdZiK4iRPp:u6JqWfyQoKT4iv

Entry address:
0x30FA

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 60, 91, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B0, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, 18, EC, 42, 00, E8, F1, 2B, 00, 00, A3, 64, EB, 42, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 98, 8F, 42, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 60, E3, 42, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, 40, 43, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Entropy:
7.9963

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

The file rexsa-web-cam-driver-windows-drv.exe has been seen being distributed by the following 3 URLs.

http://downloads.otweak.com/dup/74/.../dell-8w007-a01-driver-windows-DRV.exe

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