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mta-sa.exe

UpdateStar GmbH

The application mta-sa.exe by UpdateStar GmbH has been detected as a potentially unwanted program by 12 anti-malware scanners. This is a setup program which is used to install the application. According to Microsoft Security Essentials, the software includes a bundle of the DealPly adware which is installed on a user's PC during setup using the InstallCore platform. The file has been seen being downloaded from www.updatestar.com.
Publisher:
UpdateStar GmbH  (signed and verified)

MD5:
ac6aa6077eb381b13c9fd00c737d7ba7

SHA-1:
f536701d2cd5fc16cec3d8a133abd8beeaef09df

SHA-256:
73f1cf6cfd82465dfdf99e48007437b5dc039abf62e5b607f54dca23eac15954

Scanner detections:
12 / 68

Status:
Potentially unwanted

Explanation:
This software bundler installs other potentially unwanted software, including DealPly. Which includes offers in a user's web browser which state they are "Powered by DealPly".

Analysis date:
4/28/2024 4:17:55 AM UTC  (today)

Scan engine
Detection
Engine version

Avira AntiVirus
ADWARE/InstallCore.Gen7
7.11.132.250

Comodo Security
Application.Win32.InstallCore.AX
17819

Dr.Web
Adware.InstallCore.113
9.0.1.051

ESET NOD32
Win32/InstallCore.CF (variant)
8.8746

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

Microsoft Security Essentials
SoftwareBundler:Win32/DealPly
1.163.1557.0

Reason Heuristics
PUP.UpdateStarGmbH.G
14.2.20.9

Rising Antivirus
PE:Malware.XPACK-LNR/Heur!1.5594
23.00.65.14218

Sophos
Install Core Installer
4.91

SUPERAntiSpyware
PUP.InstallCore/Variant
10772

Vba32 AntiVirus
Downware.InstallCore
3.12.24.3

VIPRE Antivirus
InstallCore.b
21032

File size:
619.7 KB (634,552 bytes)

File type:
Executable application (Win32 EXE)

Common path:
C:\users\{user}\downloads\mta-sa.exe

Digital Signature
Signed by:
UpdateStar GmbH

Authority:
COMODO CA Limited

Valid from:
1/2/2013 1:00:00 AM

Valid to:
1/3/2016 12:59:59 AM

Subject:
CN=UpdateStar GmbH, O=UpdateStar GmbH, STREET=Hauptstraße 20, L=Berlin, S=Berlin, PostalCode=10827, C=DE

Issuer:
CN=COMODO Code Signing CA 2, O=COMODO CA Limited, L=Salford, S=Greater Manchester, C=GB

Serial number:
009ED227324380B40DDE36C8D31A33831F

File PE Metadata
Compilation timestamp:
6/20/1992 12:22:17 AM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
12288:QVayMJfsG6WbCDyXubn+qvFAdPrd8tLQzNN59goLxZIhTdS1GDs9eJBr:QVayMJfs9ICDVbnrvF4r6QzNN59gvCoB

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...
 
[+]

Code size:
36 KB (36,864 bytes)

The file mta-sa.exe has been seen being distributed by the following URL.

http://www.updatestar.com/.../1836358

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