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updateim1.exe

The application updateim1.exe has been detected as a potentially unwanted program by 11 anti-malware scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer, however the file is not signed with an authenticode signature from a trusted source. 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.
MD5:
a8905df49e4dbcdb3ffd4db17dcbf95b

SHA-1:
d19a63bafff3905d00841e5cd529b57b46858dec

SHA-256:
b971d7079f9517031e52ef8e696b6959d7c643ab059f5b0c1f4d45ae34bb85b0

Scanner detections:
11 / 68

Status:
Potentially unwanted

Explanation:
Uses the InstallMonetizer distribution platform to bundle adware.

Analysis date:
6/18/2025 1:16:51 PM UTC  (today)

Scan engine
Detection
Engine version

Avira AntiVirus
APPL/Downloader.Gen
7.11.198.178

avast!
NSIS:InstMonetizer-BT [PUP]
2014.9-160320

Baidu Antivirus
PUA.Win32.VMDetector
4.0.3.16320

Dr.Web
Adware.Downware.918
9.0.1.080

ESET NOD32
Win32/InstallMonetizer.BD
10.10942

K7 AntiVirus
Unwanted-Program
13.188.14484

Malwarebytes
Riskware.Vmdetector
v2016.03.20.11

NANO AntiVirus
Trojan.Nsis.Downloader.djhpgw
0.30.0.64448

Qihoo 360 Security
HEUR/QVM42.0.Malware.Gen
1.0.0.1015

SUPERAntiSpyware
Adware.InstallMonetizer
9254

Trend Micro House Call
Suspicious_GEN.F47V1212
7.2.80

File size:
323.4 KB (331,166 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\appdata\local\temp\updateim1.exe

File PE Metadata
Compilation timestamp:
12/5/2009 2:52:12 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
6144:NFJ06UNsW9D7pJ59ECadigTZXwVCTtZ4rt5q2pd5A8WwFP:hlY7pBAdZXwVC/4rbJd5A8B

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:
7.9075

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

The file updateim1.exe has been seen being distributed by the following URL.

http://www.cooct13hen.com/download.php?l36Ccg==

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