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flash_ac_9655_gc.exe

Start Install

The application flash_ac_9655_gc.exe by Start Install has been detected as adware by 12 anti-malware scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. The installer uses the InstallMonetizer platform which will donwload and install adware toolbars and other potentially unwanted software offers during setup. The file has been seen being downloaded from www.cooct13hen.com.
Publisher:
Start Install  (signed and verified)

MD5:
443c860df24cf608e49923098a2f123a

SHA-1:
75145c88f8b6b85d2dcb9efa39b589144685760a

SHA-256:
9158a42b4cf23301b99efd3ca929b0839fbb8d7262b02a88f54433a1ef97f67c

Scanner detections:
12 / 68

Status:
Adware

Explanation:
Uses the InstallMonetizer distribution platform to bundle adware.

Analysis date:
4/26/2024 10:46:30 AM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
Riskware.Agent
7.1.1

Avira AntiVirus
APPL/Downloader.Gen
7.11.176.146

avast!
NSIS:InstMonetizer-BB [PUP]
2014.9-151112

AVG
Generic
2016.0.2928

ESET NOD32
Win32/InstallMonetizer.BC
9.10509

Malwarebytes
PUP.Optional.SilenceInstaller.A
v2015.11.12.09

McAfee
Artemis!443C860DF24C
5600.6584

Qihoo 360 Security
HEUR/Malware.QVM06.Gen
1.0.0.1015

Reason Heuristics
PUP.StartInstall (M)
15.11.12.9

Rising Antivirus
NS:PUF.SilenceInstaller!1.9DDF
23.00.65.151110

Trend Micro House Call
Suspicious_GEN.F47V0705
7.2.316

VIPRE Antivirus
Trojan.Win32.Generic
33654

File size:
470.7 KB (481,968 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\downloads\flash_ac_9655_gc.exe

Digital Signature
Signed by:
Start Install

Authority:
COMODO CA Limited

Valid from:
1/27/2014 3:30:00 AM

Valid to:
1/28/2015 3:29:59 AM

Subject:
CN=Start Install, O=Start Install, STREET=5655 Silver Creek Valley Road, L=San Jose, S=CA/Santa Clara, PostalCode=95138, C=US

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

Serial number:
4A35F3F064DE91E511E0079B2961EAAF

File PE Metadata
Compilation timestamp:
12/6/2009 2:22:12 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:kQ5p5UkallMCBQ6p8fbJd5AgAeybJd5A8S:kQpUkalWCqFfbJd5AgAeybJd5A8S

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, 1C, 45, 00, E8, F1, 2B, 00, 00, A3, 64, 1B, 45, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 98, 37, 43, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 60, DB, 44, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, A0, 47, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Entropy:
7.6521

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

The file flash_ac_9655_gc.exe has been seen being distributed by the following URL.

http://www.cooct13hen.com/download_codesign_v1.php?id=mH CdQ==&subid=

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