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amsn.exe

The application amsn.exe has been detected as a potentially unwanted program by 10 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 OpenCandy monitzation platform which will donwload and install offers in the setup for potentially unwanted software including ad/search-supported toolbars. The file has been seen being downloaded from cdn.ibryte.com.
MD5:
646a002f404933a7323f17f3c8acb412

SHA-1:
c19feeeef4e0be3c7cdb518c496a1e43fa8355b1

SHA-256:
83295ec62b7b8b8145ad5cb0eafd6ddad9de479738f9f5b66c0a178ed689d611

Scanner detections:
10 / 68

Status:
Potentially unwanted

Explanation:
Packages the OpenCandy software bundler that offers to install additional software and may include web browser add-ons and toolbars which display advertising (based on publisher settings and geo context).

Analysis date:
12/26/2024 1:25:11 PM UTC  (today)

Scan engine
Detection
Engine version

avast!
Win32:Adware-gen [Adw]
2014.9-150610

Baidu Antivirus
Hacktool.Win32.OpenCandy
4.0.3.15610

ESET NOD32
Win32/OpenCandy potentially unsafe
9.11627

Fortinet FortiGate
W32/OpenCandy
6/10/2015

G Data
Win32.Adware.OpenCandy
15.6.25

Malwarebytes
PUP.Optional.OpenCandy
v2015.06.10.04

NANO AntiVirus
Trojan.Win32.Risk.dodayo
0.30.24.1357

Total Defense
Win32/Tnega.cQfcTZC
37.1.62.1

VIPRE Antivirus
Opencandy
40228

ViRobot
Trojan.Win32.A.VB.19420364[h]
2014.3.20.0

File size:
18.5 MB (19,420,364 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

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

File PE Metadata
Compilation timestamp:
12/5/2009 2:50:46 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
393216:4jOZuQP8fQcXTPyOI79bKte2gwhedVq3eRqKgFxOhjiXZJe:ErU8fQYTaXgMiodVqOkKgDFp0

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:
7.9997

Packer / compiler:
Nullsoft install system v2.x

Code size:
23 KB (23,552 bytes)

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

http://cdn.ibryte.com/bundles/.../aMSN.exe

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