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adobe-reader.exe

The application adobe-reader.exe has been detected as a potentially unwanted program by 15 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 setup routine uses the RevenYou.Com Pay Per Install platform (OutBrowse) which bundles additional software offers inclduing toolbars, extensions, PC utilities as well as other PUPs. The file has been seen being downloaded from download.windownload.net.
MD5:
bb6ee22caa1aab2e08993cf1ca08ccb2

SHA-1:
6f7a50b58e00772a48d603662b7d08fa510eb6a8

SHA-256:
4f4fdd0d7797e627a12704d60031e5d7930e67daa9b3dd9a33788702bc8e8c1b

Scanner detections:
15 / 68

Status:
Potentially unwanted

Explanation:
Bundles additional adware offers during download and installation using the OutBrowse installer.

Analysis date:
4/23/2024 3:48:43 PM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
PUA.OutBrowse
7.1.1

AhnLab V3 Security
PUP/Win32.OutBrowse
2015.12.10

Avira AntiVirus
PUA/Outbrowse.Gen
8.3.2.4

avast!
PUP-gen [PUP]
151004-0

Dr.Web
Threat.Undefined
9.0.1.05190

ESET NOD32
Win32/OutBrowse.L potentially unwanted application
7.0.302.0

Fortinet FortiGate
Riskware/OutBrowse
12/10/2015

F-Prot
W32/Outbrowse.B.gen
v6.4.7.1.166

G Data
Win32.Application.OutBrowse
15.12.25

IKARUS anti.virus
AdWare.Downware
t3scan.1.9.5.0

McAfee
Program.Adware-OutBrowse
18.0.204.0

NANO AntiVirus
Trojan.Win32.Generic.cthmwf
1.0.10.5081

Qihoo 360 Security
QVM42.0.Malware.Gen
1.0.0.1077

Total Defense
Win32/Tnega.EKIKMED
37.1.62.1

VIPRE Antivirus
Threat.4823950
45588

File size:
101.9 KB (104,396 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Language:
Language Neutral

Common path:
C:\users\{user}\downloads\adobe-reader.exe

File PE Metadata
Compilation timestamp:
12/5/2009 5:50:52 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
3072:agXdZt9P6D3XJWCn5Ky/9XO3jR0eWSzUu/0WH:ae34FnUQ9OzRgW/c0

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, EC, 42, 00, E8, F1, 2B, 00, 00, A3, 64, EB, 42, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 98, 8F, 42, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 60, E3, 42, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, 40, 43, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Entropy:
7.6689

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

The file adobe-reader.exe has been seen being distributed by the following URL.

http://download.windownload.net/download.php?id=52dd05a08357a1b3159b6f7e788895916ee8aa37&z=8&p=eyJweSI6IndkIiwicnMiOiJnIiwicnQiOiJzIiwiYyI6InVzIiwibyI6IndpbjciLCJiIjoiY2gzMiIsInVfaWQiOiJ3ZF81MzIzYTIyYzUwZjI5MS4yMDk5MjAwMC5hNTJhYTA1OGE0MzBiNDFlMTQ2MjcwMTEzNWU2NTI1YiIsInBhX2lkIjoiOCIsInN0X2lkIjoiMCIsInNwX2lkIjoiMDAwMC0wOTE0NSIsInRzIjoxMzk0ODQ0MjA0LCJrdyI6IithZG9iZSArcmVhZGVyIGZyZWUgZG93bmxvYWQiLCJjdSI6IiIsImNhIjpudWxsfQ

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