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microsoft_toolkit.exe

CoolMirage Ltd.

This is the setup program for CoolMirage, a potentially unwanted program (PUP) that display ads on the computer. The application microsoft_toolkit.exe by CoolMirage has been detected as adware by 5 anti-malware scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. The setup installer will bundle multiple adware offers during download and setup (based on the user's geographical location) including toolbars, extensions and coupon utilities. The file has been seen being downloaded from www.clickandownload.com and multiple other hosts.
Publisher:
CoolMirage Ltd.  (signed and verified)

MD5:
56db2395ca1eb38329d426778804f978

SHA-1:
be2af0c205650b1f843e3fa2641662f45e70614d

SHA-256:
e44317747d573a41cd41c33541a54bbc586ee8a2d1fe690f097df7a937928cc5

Scanner detections:
5 / 68

Status:
Adware

Explanation:
Bundles a number of adware programs in the installer.

Analysis date:
4/25/2024 10:39:40 AM UTC  (today)

Scan engine
Detection
Engine version

Comodo Security
Application.Win32.MCool.D
17303

Dr.Web
Adware.Downware.1263
9.0.1.0365

Malwarebytes
PUP.Optional.OneClickDownloader.A
v2013.12.31.03

Reason Heuristics
PUP.CoolMirage.R
14.8.7.17

VIPRE Antivirus
CoolMirage Ltd
23542

File size:
295 KB (302,112 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\downloads\microsoft_toolkit.exe

Digital Signature
Signed by:
CoolMirage Ltd.

Authority:
Thawte, Inc.

Valid from:
6/6/2013 2:00:00 AM

Valid to:
6/7/2014 1:59:59 AM

Subject:
CN=CoolMirage Ltd., O=CoolMirage Ltd., L=Tel Aviv, S=Israel, C=IL

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

Serial number:
110F603E63C86349A5F243EA06966F33

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):
6144:CsH71pGBgcblKSZA+am/reRil3uDsi/zDJM6LRTFwcXe:d1kBPQSRamqRite/PlLRxwcXe

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...
 
[+]

Entropy:
7.8275

Packer / compiler:
Nullsoft install system v2.x

Code size:
23 KB (23,552 bytes)

The file microsoft_toolkit.exe has been seen being distributed by the following 4 URLs.

http://www.clickandownload.com/.../MythBusters.S07E01.Demolition.Derby.Special.HDTV.XviD-FQM-stream-kinox.to.exe

http://www.clickandownload.com/.../PLNES.2013.720p.BluRay.700MB.ShAaNiG.exe

http://www.clickandownload.com/.../animesubita.info_FFs_SSK_Air_Gear_OVA_-_03.exe

http://www.clickandownload.com/.../Microsoft_Toolkit.exe

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