addonsui.exe

WindApp

NOSIBAY

The application addonsui.exe by NOSIBAY has been detected as a potentially unwanted program 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 NSIS (Nullsoft Scriptable Install System) installer. The file has been seen being downloaded from br-cdn.windapp.net and multiple other hosts.
Publisher:
NOSIBAY  (signed and verified)

Product:
WindApp

Version:
3.0.673.0.64476

MD5:
c65f5243c5e9062dddd24afc23552784

SHA-1:
9348dccf92aadd305a2ac0f80fe16b64c6f833be

SHA-256:
c660320e6937401a4d42cafb6df75faa2a9f6598cf94ec22a311e7f38c681b8d

Scanner detections:
1 / 68

Status:
Potentially unwanted

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.

Analysis date:
11/8/2024 2:10:06 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.NOSIBAY.Installer (M)
16.2.19.4

File size:
421 KB (431,104 bytes)

Copyright:
© Store

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Language:
Language Neutral

Common path:
C:\users\{user}\appdata\roaming\store\windapp\tmp\updates\addonsui.exe

Digital Signature
Signed by:

Authority:
thawte, Inc.

Valid from:
10/25/2015 10:00:00 PM

Valid to:
1/24/2017 9:59:59 PM

Subject:
CN=NOSIBAY, OU=Secure Application Development, O=NOSIBAY, L=PEROLS, S=Hérault, C=FR

Issuer:
CN=thawte SHA256 Code Signing CA, O="thawte, Inc.", C=US

Serial number:
5F167BED0657C4880A327813C55256A5

File PE Metadata
Compilation timestamp:
12/5/2009 8:50:52 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
6144:/e34yLO15/6YHey2ZYc6Hknq73ZX8wjveEtt2NB6+shLfXc0Ff2I03bfid:oLO1cYz2TqNyEWfXshbN2fWd

Entry address:
0x30FA

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 60, 91, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B0, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, 18, EC, 42, 00, E8, F1, 2B, 00, 00, A3, 64, EB, 42, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 98, 8F, 42, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 60, E3, 42, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, 40, 43, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

The file addonsui.exe has been seen being distributed by the following 2 URLs.

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