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teamviewer_download.exe

DownloadShield

The application teamviewer_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. The file has been seen being downloaded from localhost and multiple other hosts.
Publisher:
DownloadShield  (signed and verified)

MD5:
ea905c7aef89c38851fdf85e168d04db

SHA-1:
666b992a6e561ad26fbf22cc7fb4f210987c9363

SHA-256:
def7420894b217071f17bdf0e25a1cc990da0570a524cac3f43a25bb121a03eb

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:
11/23/2024 7:01:48 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Download.Installer (M)
16.5.31.10

File size:
233.7 KB (239,280 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

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

Digital Signature
Signed by:
DownloadShield

Authority:
VeriSign, Inc.

Valid from:
12/21/2015 6:00:00 PM

Valid to:
3/21/2019 6:59:59 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 9:43:56 PM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
9.0

CTPH (ssdeep):
6144:X0hNLogKZDIZ2qMsFiv6BtgZHbGYXwj5484rLt:kkbDI/MssG2ZyYXU4f

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:
7.7728

Packer / compiler:
Nullsoft install system v2.x

Code size:
23 KB (23,552 bytes)

The file teamviewer_download.exe has been seen being distributed by the following 3 URLs.

http://localhost:37848/continue?TiCredToken=23816&Source=WTP&Score=49&siteowner=0&email=Email address&description=Provide a description of the site&URL=http://www.browserwin.com/.../TeamViewer_Download.exe&Permanent=1

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

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

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