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chatzum.exe

The application chatzum.exe has been detected as a potentially unwanted program by 5 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 file has been seen being downloaded from d25pu8rpgqv7at.cloudfront.net.
MD5:
428380e168a54eed2231f3baa1d18fe4

SHA-1:
5a70b209cbfbae53b88efaacb23f439520b0bacb

Scanner detections:
5 / 68

Status:
Potentially unwanted

Analysis date:
4/24/2024 2:58:19 PM UTC  (today)

Scan engine
Detection
Engine version

avast!
MacOS:Chatzum-D [Adw]
2014.9-160430

Baidu Antivirus
Trojan.OSX.ChatZum
4.0.3.16430

Bkav FE
W32.Clodc26.Trojan
1.3.0.4959

Dr.Web
Adware.Plugin.62
9.0.1.0121

ESET NOD32
OSX/ChatZum
10.9587

File size:
3.6 MB (3,783,545 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\Documents and Settings\{user}\My documents\downloads\chatzum.exe

File PE Metadata
Compilation timestamp:
12/6/2009 6:50:41 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
98304:959P+UBnGZQI3AiyS6BP8JvaOFURMU+quGZTem47M:9Pw6pS6BPuvFFS6qdZrT

Entry address:
0x30CB

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, 38, 3F, 42, 00, E8, F1, 2B, 00, 00, A3, 84, 3E, 42, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 30, F4, 41, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 80, 36, 42, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, 90, 42, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Entropy:
7.9918

Packer / compiler:
Nullsoft install system v2.x

Code size:
22.5 KB (23,040 bytes)

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

https://d25pu8rpgqv7at.cloudfront.net/toolbar/.../chatzum.exe

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