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install_stykz.exe

The application install_stykz.exe has been detected as a potentially unwanted program by 11 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 www.freewarefiles.com.
MD5:
83f7535d862906b800e2619e7e12811a

SHA-1:
3a7c2c8f24d4f3cdd767e1c3bcbb7a6bae1bb9fd

SHA-256:
1ecabb1d1bc8905b8f725dbe12f84ff485cd8b8c682bd261682127c488a13194

Scanner detections:
11 / 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:
4/27/2024 3:54:56 AM UTC  (today)

Scan engine
Detection
Engine version

Avira AntiVirus
ADWARE/InstallCore.Gen7
7.11.109.154

Bkav FE
W32.Clodfb4.Trojan
1.3.0.4261

Comodo Security
ApplicUnwnt
17160

Dr.Web
Trojan.Packed.24524
9.0.1.0198

ESET NOD32
Win32/InstallCore.CU (variant)
10.8969

Malwarebytes
PUP.Optional.Freemium.A
v2016.07.16.05

McAfee
Artemis!83F7535D8629
5600.6336

Norman
InstallCore.RBUR
11.20160716

Reason Heuristics
PUP.InstallCore.ENG (M)
16.7.16.17

Sophos
Install Core Click run software
4.94

Trend Micro House Call
TROJ_GEN.F47V1020
7.2.198

File size:
604.8 KB (619,352 bytes)

File type:
Executable application (Win32 EXE)

Installer:
Inno Setup

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

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
12288:1JyMJfsGYwlMN+hoBA+UbkUH4pDFqWrhXg7kESz0YsZ2c1pvekke:LyMJfshwPAZaknqWJg7+rsHde

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:
7.8207

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

Code size:
36 KB (36,864 bytes)

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

http://www.freewarefiles.com/.../download.php?programid=49993

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