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pacman.exe

DownloadManager.exe

Optimum Installer

This adware bundler is distributed through Adknowledge's advertising supported software managers. The application pacman.exe, “PacMan ” by Optimum Installer has been detected as adware by 25 anti-malware scanners. The program is a setup application that uses the Adknowledge Fusion installer. The file has been seen being downloaded from install2.optimum-installer.com.
Publisher:
ADK Apps  (signed by Optimum Installer)

Product:
DownloadManager.exe

Description:
PacMan

Version:
2.1.10

MD5:
bc7bdbf9833be543179107c52b5cb2ab

SHA-1:
18a0e00c544ee4f4a5cee82e0ca6bb33ecf89e92

SHA-256:
3db06656aa30eb915e0f4808ebb8a83e71294c32f78f43fe37253ac9514d2040

Scanner detections:
25 / 68

Status:
Adware

Explanation:
This installer bundles various adware prorgams that may include toolbars and web browser advertising injectors/extensions.

Description:
This is also known as bundleware, or downloadware, which is an downloader designed to simply deliver ad-supported offers in the setup routine of an otherwise legitimate software.

Analysis date:
4/24/2024 12:13:59 AM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
Adware.Agent
7.1.1

AhnLab V3 Security
Adware/Win32.IBryte
2014.08.25

Avira AntiVirus
Adware/iBryte.JH.2
7.11.168.254

avast!
Win32:Installer-J [PUP]
140813-1

AVG
Adware Skodna.Generic.AGL
2014.0.4007

Clam AntiVirus
Win.Adware.Ibryte-76
0.98/19305

Comodo Security
ApplicUnwnt.Win32.AdWare.iBryte.H
19305

Dr.Web
Adware.iBryte.3
9.0.1.05190

ESET NOD32
Win32/Adware.iBryte.D application
7.0.302.0

Fortinet FortiGate
Riskware/IBryte
8/24/2014

F-Prot
W32/Ibryte.B.gen
4.6.5.141

G Data
Win32.Adware.OptimumInst
14.8.24

IKARUS anti.virus
PUA.OptInstall
t3scan.1.7.5.0

Kaspersky
not-a-virus:AdWare.Win32.Agent
15.0.0.463

Malwarebytes
PUP.Optional.IBryte
v2014.08.24.09

McAfee
Adware-FOO
5600.7028

NANO AntiVirus
Riskware.Win32.Agent.csoeby
0.28.2.61721

nProtect
Trojan/W32.Agent.687400
14.08.24.01

Reason Heuristics
PUP.Installer.OptimumInstaller.G
14.8.24.18

Rising Antivirus
PE:Malware.Agent!6.33F
23.00.65.14822

Sophos
iBryte Optimum Installer
4.98

Trend Micro House Call
HV_OPTIMUM_CG090002.RDXN
7.2.236

Vba32 AntiVirus
Adware.iBryte
3.12.26.3

VIPRE Antivirus
Threat.4778314
32210

Zillya! Antivirus
Adware.iBryte.Win32.296
2.0.0.1900

File size:
671.3 KB (687,400 bytes)

Product version:
2.1.10

Original file name:
Setup.exe

File type:
Executable application (Win32 EXE)

Bundler/Installer:
Adknowledge Fusion

Language:
English (United States)

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

Digital Signature
Signed by:
Optimum Installer

Authority:
VeriSign, Inc.

Valid from:
10/11/2012 1:00:00 AM

Valid to:
11/7/2013 11:59:59 PM

Subject:
CN=Optimum Installer, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Optimum Installer, L=Kansas City, S=Missouri, C=US

Issuer:
CN=VeriSign Class 3 Code Signing 2010 CA, OU=Terms of use at https://www.verisign.com/rpa (c)10, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
7C5F27B776ADBBB7943F700066A490BF

File PE Metadata
Compilation timestamp:
12/20/2012 9:58:29 PM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
9.0

CTPH (ssdeep):
12288:Pe7juwDzvwnnjuWMAVwJwoQoS+lG7W5+gWE2qhdYxgddxFFipVqS5LJpYb5qQPpb:PelDz6njuWRw2joS+U4p3h2xudxFFi6R

Entry address:
0x4CD70

Entry point:
E8, 55, D5, 00, 00, E9, 78, FE, FF, FF, 8B, FF, 55, 8B, EC, 6A, 00, FF, 75, 14, FF, 75, 10, FF, 75, 0C, FF, 75, 08, E8, CE, D5, 00, 00, 83, C4, 14, 5D, C3, FF, 35, 14, 93, 49, 00, E8, 0B, 39, 00, 00, 59, 85, C0, 74, 02, FF, D0, 6A, 19, E8, 38, 91, 00, 00, 6A, 01, 6A, 00, E8, CD, D8, 00, 00, 83, C4, 0C, E9, AE, D7, 00, 00, 8B, FF, 55, 8B, EC, 8B, 55, 08, 53, 56, 57, 33, FF, 3B, D7, 74, 07, 8B, 5D, 0C, 3B, DF, 77, 1E, E8, A0, 03, 00, 00, 6A, 16, 5E, 89, 30, 57, 57, 57, 57, 57, E8, 54, AF, FF, FF, 83, C4, 14...
 
[+]

Entropy:
6.4181

Code size:
426 KB (436,224 bytes)

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

http://install2.optimum-installer.com/o/.../PacMan.exe

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