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downloader.exe

WindApp

NOSIBAY

The application downloader.exe, “WindApp installer” 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. It is also typically executed from an Internet Explorer cache folder.
Publisher:
NOSIBAY  (signed and verified)

Product:
WindApp

Description:
WindApp installer

Version:
3.0.643.0.61117

MD5:
b43cd3b93940f24264283dd0e6908a6f

SHA-1:
3e685e4935d3fe6f32dac8700d95e8b70efa2194

SHA-256:
16055cf2326c4a8d5f6bb89f79f57c016d8d106d6f4f10a007f06116b2cb9f31

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:
12/23/2024 5:03:29 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.NOSIBAY.Installer (M)
16.7.11.9

File size:
158.4 KB (162,208 bytes)

Copyright:
© Store

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\appdata\local\microsoft\windows\temporary internet files\content.ie5\{random}\downloader.exe

Digital Signature
Signed by:
NOSIBAY

Authority:
Thawte, Inc.

Valid from:
9/21/2013 2:00:00 AM

Valid to:
11/21/2014 12:59:59 AM

Subject:
CN=NOSIBAY, OU=Nosibay Secure Developement, O=NOSIBAY, L=PEROLS, S=Hérault, C=FR

Issuer:
CN=Thawte Code Signing CA - G2, O="Thawte, Inc.", C=US

Serial number:
4F1CA396B891ED381AFEECC074DB8714

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):
3072:9QIURTXJUdd5r1+VEripXujNnT+YXGQBvCISW4Q/jlC8xncfkJYU70qU:9smXZG2iV0ZLn6bXQ/jlCxfEz0qU

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)

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