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opera browserinstaller.exe

Tefamu

Quality Install (Alpha Criteria Ltd.)

The application opera browserinstaller.exe, “Tefamu Setup ” by Quality Install (Alpha Criteria) 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. 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 www.capitalheartlaboratory.com.
Publisher:
Quality Install (Alpha Criteria Ltd.)  (signed and verified)

Product:
Tefamu

Description:
Tefamu Setup

MD5:
7fa80b5ddfd74b29eb35f86f9ec45c4a

SHA-1:
84bbef1031898a2b7d5e6e08d8b6ba5f6a14d0ad

SHA-256:
541b1b1f3d306ef6cd0f8713ed485a2352e8ad85da9b04ea40fc375065113de1

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 'download manager' is also considered bundleware, a utility designed to download software (possibly legitimate or opensource) and bundle it with a number of optional offers including ad-supported utilities, toolbars, shopping comparison tools and browser extensions.

Analysis date:
5/21/2024 12:32:21 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.InstallCore.AC (M)
16.8.11.4

File size:
1016.3 KB (1,040,688 bytes)

Product version:
4.5

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

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

Digital Signature
Signed by:
Quality Install (Alpha Criteria Ltd.)

Authority:
GlobalSign nv-sa

Valid from:
1/6/2016 4:14:15 PM

Valid to:
8/4/2016 5:59:05 PM

Subject:
CN=Quality Install (Alpha Criteria Ltd.), O=Quality Install (Alpha Criteria Ltd.), L=Tel Aviv, C=IL

Issuer:
CN=GlobalSign CodeSigning CA - SHA256 - G2, O=GlobalSign nv-sa, C=BE

Serial number:
1121BA484E4C31175E4A844ED055428DEC42

File PE Metadata
Compilation timestamp:
6/20/1992 1:22:17 AM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
24576:GXMAw5C2O+coR/jCfztADOVGrAiFvu7KgXnKn9FMBTlP0QjcpMXVJo:GcVnLcoR/jCfJAFzxSnKnXGpf

Entry address:
0xA5F8

Entry point:
55, 8B, EC, 83, C4, C4, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, CE, 8A, FF, FF, E8, D5, 9C, FF, FF, E8, 64, 9F, FF, FF, E8, 07, A0, FF, FF, E8, A6, BF, FF, FF, E8, 11, E9, FF, FF, E8, 78, EA, FF, FF, 33, C0, 55, 68, C9, AC, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, 92, AC, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, C0, 40, 00, E8, 26, F5, FF, FF, E8, 11, F1, FF, FF, 80, 3D, 34, B2, 40, 00, 00, 74, 0C, E8, 23, F6, FF, FF, 33, C0, E8, C4, 97, FF, FF, 8D, 55, F0, 33, C0, E8, B6, C5, FF, FF, 8B, 55...
 
[+]

Entropy:
7.9235

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

Code size:
39.5 KB (40,448 bytes)

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

http://www.capitalheartlaboratory.com/2_pYU4dl2UhNUznzPeLl6VO8zgqjg1hsVSL NE4Lwenq8FuT7ukOvJ4FDPtn2Nppulm PVdc_Zwm0Ealpt0268YFaZDWAPC h8FA2yUuVCxiABkhBhHpMNwkZmGX4ydCgC2 es8DYWUZmUXNOc ES_EbENw5wbjvGcfXeTjkGHhBt 5vrStFx6pkF_0Fesjz0xyISnZH67wCEgkAIj3yz42wV0OA1Q==-G0gAAETnFhsoqRhcZ3N7IIgOceoYx4PyLYsOZG_DRA4CTdtu1xqPaREr6B46cgQPox97PX7mXKUImyc3bQVatCPvJnwA

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