winterwood.exe

The application winterwood.exe has been detected as a potentially unwanted program by 21 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 www.windows7-themes.org.
MD5:
3f1b4411f07552aa4915a47a0db377ee

SHA-1:
cab7bbb106b07d0ddaaa84ba039c31661047c026

SHA-256:
474647f3fa4f54176713baf23c42d4e2afc5951eb3f1d2cc95d3f6e8fd941cac

Scanner detections:
21 / 68

Status:
Potentially unwanted

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

Analysis date:
4/26/2024 10:33:51 AM UTC  (today)

Scan engine
Detection
Engine version

AhnLab V3 Security
PUP/Win32.OutBrowse
2014.01.22

AVG
MalSign.OutBrowse
2015.0.3573

Baidu Antivirus
HackTool.Win32.OutBrowse
4.0.3.1424

Comodo Security
Application.Win32.OutBrowse.~B
17491

Dr.Web
Adware.Downware.1664
9.0.1.035

ESET NOD32
Win32/OutBrowse (variant)
8.9190

Fortinet FortiGate
Riskware/NSIS_OutBrowse
2/4/2014

herdProtect (fuzzy)
2014.4.6.4

K7 AntiVirus
Unwanted-Program
13.174.10623

Kaspersky
not-a-virus:Downloader.NSIS.OutBrowse
14.0.0.4362

Malwarebytes
PUP.Optional.Smart
v2014.02.04.02

McAfee
Artemis!C3015E208473
5600.7229

NANO AntiVirus
Trojan.Win32.OutBrowse.crkqqe
0.28.0.57029

Qihoo 360 Security
HEUR/Malware.QVM06.Gen
1.0.0.1015

Sophos
Generic PUA DH
4.96

Trend Micro House Call
TROJ_GEN.F47V1130
7.2.35

Trend Micro
TROJ_GEN.R02SC0OA514
10.465.04

Vba32 AntiVirus
Downloader.OutBrowse
3.12.24.3

VIPRE Antivirus
OutBrowse
24706

ViRobot
Trojan.Win32.Agent.87672
2011.4.7.4223

XVirus List
Win.Detected
2.3.31

File size:
608 KB (622,541 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Language:
Language Neutral

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

File PE Metadata
Compilation timestamp:
12/5/2009 10:50:52 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:8l5cWN3aPbD3x6imu00ufz6HSkdxvN+RrA55N2uSgcbUe6Q8SAEe3nTJlQ:8TrNKPbDVmH0uf+HSkHl+RsnNFSgcD6g

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...
 
[+]

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

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

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