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adobe-reader.exe

The application adobe-reader.exe has been detected as a potentially unwanted program by 13 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 dl1.app2desktop.com and multiple other hosts.
MD5:
5ef6988c3a1129c0c561aa885d72343f

SHA-1:
a71d0e8515aaeffabf05febc0205cbfd8d79a229

SHA-256:
06f0904fabd8ffcbc0e68d721a8b55276595ef061750e3bcd0d0a0885c6a68d5

Scanner detections:
13 / 68

Status:
Potentially unwanted

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

Analysis date:
4/25/2024 7:31:15 AM UTC  (today)

Scan engine
Detection
Engine version

AhnLab V3 Security
PUP/Win32.OutBrowse
2014.07.20

Dr.Web
Threat.Undefined
9.0.1.05190

ESET NOD32
Win32/OutBrowse.J potentially unwanted application
7.0.302.0

Fortinet FortiGate
Riskware/OutBrowse
7/19/2014

IKARUS anti.virus
AdWare.Downware
t3scan.1.6.1.0

Kaspersky
not-a-virus:Downloader.NSIS.OutBrowse
15.0.0.494

McAfee
Adware-OutBrowse
5600.7064

NANO AntiVirus
Trojan.Win32.Generic.cthmwf
0.28.2.60881

Rising Antivirus
PE:Trojan.Win32.Generic.16834D0D!377703693
23.00.65.14717

Trend Micro House Call
TROJ_GEN.R0CBC0PE914
7.2.200

Trend Micro
TROJ_GEN.R0CBC0PE914
10.465.19

Vba32 AntiVirus
Downloader.OutBrowse
3.12.26.3

VIPRE Antivirus
Threat.4823950
31208

File size:
101.9 KB (104,320 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:EgXdZt9P6D3XJmC95Ky/9XO3jR0eWSzUu/0W0:Ee34V9UQ9OzRgW/cf

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 2 URLs.

http://dl1.app2desktop.com/.../Get?p=1955&d=2044&l=1966&n=1&productname=Adobe&d1=9&d2=1&d3=1&d4=12&d5=00000000&filename=Adobe-Reader

http://downloader2.downloadinfo.co/download.php?id=8f022f30d27c45cef9fbfd61432fee2f1c84063f&z=8&p=eyJweSI6ImRpIiwicnMiOiJnb29nbGUiLCJydCI6InNlYXJjaCIsImMiOiJ1cyIsIm8iOiJ3aW44IiwiYiI6ImNoMzIiLCJ1X2lkIjoiZGlfNTJlZmVhNzk2MGZmYTAuMDAyMDYxMDYiLCJwYV9pZCI6IjgiLCJzdF9pZCI6IjAiLCJzcF9pZCI6IjAwMDAtMDAwMCIsInRzIjoxMzkxNDU0ODQxLCJrdyI6ImFkb2JlcmVhZGVyIiwiY3UiOiJhZG9iZXJlYWRlciIsImNhIjpudWxsfQ==

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