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28dayslater_downloader-q5qwf4u68.exe

Mocal

This is the Somoto BetterInstaller, an installer that bundles applications with offers for additional 3rd party software, mostly unwanted adware, and may be installed without consent. The application 28dayslater_downloader-q5qwf4u68.exe by Mocal 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 Somoto BetterInstaller installer. The file has been seen being downloaded from www.schriftarten-fonts.de and multiple other hosts.
Publisher:
Mocal  (signed and verified)

Version:
1.0.0.1

MD5:
8193b23806f95c20add591cf0b146991

SHA-1:
7f9247392c1272dd844bef9907d2e5c92a872806

SHA-256:
9ad0d651ef4aca88cdb1522f5ffb3c4ad24a7d44931bb2fd7cd15bce987427cf

Scanner detections:
1 / 68

Status:
Adware

Note:
Our current pool of anti-malware engines have not currently detected this file, however based on our own detection heuristics we feel that this file is unwanted.

Description:
This is an installer which may bundle legitimate applications with offers for additional 3rd-party applications that may be unwanted by the user. While the installer contains an 'opt-out' feature this is not set be defult and is usually overlooked.

Analysis date:
4/23/2024 6:42:42 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Somoto.Mocal.Bundler (M)
16.1.11.4

File size:
422.2 KB (432,344 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
Somoto BetterInstaller (using Nullsoft Install System)

Language:
Language Neutral

Common path:
C:\users\{user}\downloads\28dayslater_downloader-q5qwf4u68.exe

Digital Signature
Signed by:
Mocal

Authority:
COMODO CA Limited

Valid from:
6/10/2014 2:00:00 AM

Valid to:
6/11/2015 1:59:59 AM

Subject:
CN=Mocal, O=Mocal, STREET=Bendstr. 18, L=Aachen, S=NRW, PostalCode=52066, C=DE

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

Serial number:
0765B6A8C03E3F98B22046A6D2373518

File PE Metadata
Compilation timestamp:
12/5/2009 11:50:46 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:5FRPNxj2LSVShvDi5VvySsnuX7jolTA4oXstX:5FRPNxi0ShWXInuX7EHX

Entry address:
0x323C

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 30, 91, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B4, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, 58, 3F, 42, 00, E8, 09, 2C, 00, 00, A3, A4, 3E, 42, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 58, F4, 41, 00, FF, 15, 58, 71, 40, 00, 68, B8, 91, 40, 00, 68, A0, 36, 42, 00, E8, BC, 28, 00, 00, FF, 15, B0, 70, 40, 00, BF, 00, 90, 42, 00, 50, 57, E8, AA, 28, 00, 00...
 
[+]

Packer / compiler:
Nullsoft install system v2.x

Code size:
23 KB (23,552 bytes)

The file 28dayslater_downloader-q5qwf4u68.exe has been seen being distributed by the following 2 URLs.

http://www.schriftarten-fonts.de/.../EmbossedGermanica_downloader-Q9J9hcTql.exe

http://www.schriftarten-fonts.de/.../RosemaryRoman_downloader-QczCVYS8p.exe

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