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scratch.exe

Dula

Contumar Empresarial s.l.

This is the Solimba installer program that will bundle additional offers mostly including adware and various unwanted PC utilities. The application scratch.exe, “Dula Setup ” by Contumar Empresarial s.l 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 Solimba DownloadMR installer. The installer uses the Solimba download manager to push adware offers during the download and setup process. Bundled adware includes search and shopping web browser toolbars.
Publisher:
Feloruteb   (signed by Contumar Empresarial s.l.)

Product:
Dula

Description:
Dula Setup

MD5:
a8068fbf5e40a2bc2f21747a4a136e77

SHA-1:
886168e20a907eb5c3a86bce4e606e9dc3e20567

SHA-256:
b47bfcba8bc5b435c66833f7824fb6d8f8843330e8611c200d272d0d642c91ee

Scanner detections:
1 / 68

Status:
Adware

Explanation:
Uses the Solimba installer to bundle adware offers.

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:
1/13/2025 4:00:20 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Solimba.Contumar.Bundler (M)
16.5.26.0

File size:
967.7 KB (990,928 bytes)

Product version:
2.0.0

File type:
Executable application (Win32 EXE)

Bundler/Installer:
Solimba DownloadMR (using Inno Setup)

Language:
Language Neutral

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

Digital Signature
Signed by:
Contumar Empresarial s.l.

Authority:
GlobalSign nv-sa

Valid from:
12/22/2015 8:58:46 AM

Valid to:
9/24/2016 10:00:25 AM

Subject:
CN=Contumar Empresarial s.l., O=Contumar Empresarial s.l., L=Barcelona, S=Barcelona, C=ES

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

Serial number:
1121C3F1094CE6FD9B88C9B67F5FDD17327E

File PE Metadata
Compilation timestamp:
6/19/1992 5:22:17 PM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
24576:rgvwA8dg3aojDzzx4mo93vRwuaTspoFuEOWvSldJDF1aggiD/:r8X0QaojDZ4HqDYpoAEOkIJDLagD/

Entry address:
0x9C40

Entry point:
55, 8B, EC, 83, C4, C4, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, 86, 94, FF, FF, E8, 8D, A6, FF, FF, E8, 1C, A9, FF, FF, E8, 53, C9, FF, FF, E8, 9A, C9, FF, FF, E8, C9, F2, FF, FF, E8, 30, F4, FF, FF, 33, C0, 55, 68, FC, A2, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, C5, A2, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, C0, 40, 00, E8, 96, FE, FF, FF, E8, C9, FA, FF, FF, 8D, 55, F0, 33, C0, E8, 83, CF, FF, FF, 8B, 55, F0, B8, 24, CE, 40, 00, E8, 32, 95, FF, FF, 6A, 02, 6A, 00, 6A, 01, 8B, 0D, 24, CE...
 
[+]

Entropy:
7.9330

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

Code size:
37 KB (37,888 bytes)

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

http://www.contentlaboratorynew.com/c?x=ZmS579E241ffgEGfeD/iRJKg xxMu0qZn3a1 pQ83mI=&c=JZxsQ7lAHIXVXig4B3SJLDKm1pDtRNQdtVT3AcPXffihXz//4HVQHUQypq25vyDqxuQQk/.../7&downloadAs=scratch.exe&fallback_url=Fallback URL

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