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java_download.exe

DownloadShield

The application java_download.exe by DownloadShield has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. It is also typically executed from an Internet Explorer cache folder. The file has been seen being downloaded from www.browserwin.com and multiple other hosts.
Publisher:
DownloadShield  (signed and verified)

MD5:
4d0b1dc3a0960030c3af69c79b2fcd49

SHA-1:
8d85fd98efe30819c3d5aa77d5fd01a48374f986

SHA-256:
9a30a3e974102c6d8bf2bbaa559b59650fb077f2c3b8fde3cad4ceff3e7a7351

Scanner detections:
1 / 68

Status:
Adware

Note:
Our current pool of anti-malware engines have not currently detected this file, however based on our own detection heuristics we feel that this file is unwanted.

Analysis date:
12/26/2024 1:00:25 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Download.Installer (M)
16.5.31.7

File size:
233.7 KB (239,272 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\appdata\local\microsoft\windows\temporary internet files\content.ie5\{random}\java_download.exe

Digital Signature
Signed by:
DownloadShield

Authority:
VeriSign, Inc.

Valid from:
12/21/2015 7:00:00 PM

Valid to:
3/21/2019 7:59:59 PM

Subject:
CN=DownloadShield, O=DownloadShield, L=San Jose, S=California, 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:
78070F8D972292519C0C15749BCB3808

File PE Metadata
Compilation timestamp:
8/3/2015 10:43:56 PM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
9.0

CTPH (ssdeep):
6144:50hNLogKZokMsFiv6BtgZHbGYXwj5484rLe:GkbbMssG2ZyYXU4f

Entry address:
0x31FD

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 57, 33, DB, 68, 01, 80, 00, 00, 89, 5C, 24, 1C, C7, 44, 24, 14, F0, 73, 40, 00, 33, F6, C6, 44, 24, 18, 20, FF, 15, B4, 70, 40, 00, FF, 15, B0, 70, 40, 00, 66, 83, F8, 06, 74, 11, 53, E8, F3, 26, 00, 00, 3B, C3, 74, 07, 68, 00, 0C, 00, 00, FF, D0, 68, E8, 73, 40, 00, E8, 74, 26, 00, 00, 68, E0, 73, 40, 00, E8, 6A, 26, 00, 00, 68, D4, 73, 40, 00, E8, 60, 26, 00, 00, 6A, 0D, E8, C3, 26, 00, 00, 6A, 0B, E8, BC, 26, 00, 00, A3, 00, 3C, 42, 00, FF, 15, 34, 70, 40, 00, 53, FF...
 
[+]

Entropy:
7.7731

Packer / compiler:
Nullsoft install system v2.x

Code size:
23 KB (23,552 bytes)

The file java_download.exe has been seen being distributed by the following 2 URLs.

http://www.browserwin.com/.../download

http://www.browserwin.com/.../Java_Download.exe

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