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adobe-reader.exe

The application adobe-reader.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 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:
90a46f344f58c31e12fd8f4b72e60953

SHA-1:
74807a085facb18b482f42d47f1f65ae434c1d74

SHA-256:
4df6f67285bdda5074112992837eea420d9d9bec95b600733393726baed947a1

Scanner detections:
5 / 68

Status:
Potentially unwanted

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

Analysis date:
1/13/2025 9:45:11 AM UTC  (today)

Scan engine
Detection
Engine version

avast!
Win32:PUP-gen [PUP]
160118-1

Dr.Web
Threat.Undefined
9.0.1.05190

ESET NOD32
Win32/OutBrowse.L potentially unwanted application
7.0.302.0

McAfee
Program.Adware-OutBrowse
18.0.204.0

VIPRE Antivirus
Threat.4823950
46590

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:agXdZt9P6D3XJWCF5Ky/9XO3jR0eWSzUu/0Wv:ae34FFUQ9OzRgW/cg

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:
7.6685

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=eyJweSI6IndkIiwicnMiOiJnIiwicnQiOiJzIiwiYyI6InVzIiwibyI6IndpbjciLCJiIjoiY2gzMyIsInVfaWQiOiJ3ZF81MzIyNGIzYTI3NWQzOS45ODEyOTg2Ny5lMTE2Yzk0MjI0NTM5MGMyMjBmMWM2NGVlMmUxMmQ4NyIsInBhX2lkIjoiOCIsInN0X2lkIjoiMCIsInNwX2lkIjoiMDAwMC0wOTE0NSIsInRzIjoxMzk0NzU2NDEwLCJrdyI6IithZG9iZSArcmVhZGVyIGZyZWUgZG93bmxvYWQiLCJjdSI6IiIsImNhIjpudWxsfQ

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