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update_14.exe

Symbu LLC

This is the Tightrope WebInstall which bundles applications with offers for additional 3rd party software, mostly unwanted adware, and may be installed with minimal consent. The application update_14.exe by Symbu 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 Tightrope WebInstall installer. The file has been seen being downloaded from files4.fastdownload6.com and multiple other hosts.
Publisher:
Symbu LLC  (signed and verified)

MD5:
30169c5a523309c3d14f79d3df12eac8

SHA-1:
12df2597bae79ee7487a7e9daf5b27228e7873b7

SHA-256:
b5f25d9359b69c1fd2935bf65b7f5836bca063c3b449c3e101248d0536c3a2ec

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.

Description:
This is also known as bundleware, or downloadware, which is an downloader designed to simply deliver ad-supported offers in the setup routine of an otherwise legitimate software.

Analysis date:
11/15/2024 9:32:14 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Tightrope.Symbu.Bundler (M)
16.2.8.21

File size:
653.9 KB (669,600 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
Tightrope WebInstall (using Nullsoft Install System)

Language:
Language Neutral

Common path:
C:\users\{user}\appdata\local\microsoft\windows\temporary internet files\update_14.exe

Digital Signature
Signed by:
Symbu LLC

Authority:
DigiCert Inc

Valid from:
1/21/2015 5:30:00 AM

Valid to:
1/25/2016 5:30:00 PM

Subject:
CN=Symbu LLC, O=Symbu LLC, L=San Francisco, S=California, C=US

Issuer:
CN=DigiCert SHA2 Assured ID Code Signing CA, OU=www.digicert.com, O=DigiCert Inc, C=US

Serial number:
090A11C2A200806811FD3F043D627C7E

File PE Metadata
Compilation timestamp:
1/29/2015 12:05:11 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
12288:U4BS2ly9NKPRdegPsgQr/745jezvROTVo80d1WU1ntTxJ10gJ1TvzF:UhhKeiHQr/s1uRCBQWMxDpF

Entry address:
0x234A

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 78, 73, 40, 00, 33, F6, C6, 44, 24, 14, 20, E8, F8, FD, FF, FF, FF, 15, 30, 77, 40, 00, 68, 01, 80, 00, 00, FF, 15, C0, 70, 40, 00, 53, FF, 15, 2C, 77, 40, 00, 6A, 08, A3, 98, 3D, 42, 00, E8, DD, F9, FF, FF, 53, 68, 60, 01, 00, 00, A3, A0, 3C, 42, 00, 8D, 44, 24, 38, 50, 53, 68, 0B, 74, 40, 00, FF, 15, 50, 71, 40, 00, 68, 00, 74, 40, 00, 68, A0, 34, 42, 00, E8, 5A, F3, FF, FF, FF, 15, BC, 70, 40, 00, 50, BF, 00, 90, 42, 00, 57...
 
[+]

Entropy:
7.9733

Packer / compiler:
Nullsoft install system v2.x

Code size:
23 KB (23,552 bytes)

The file update_14.exe has been seen being distributed by the following 2 URLs.

http://files4.fastdownload6.com/download/.../dl?bc=1126566&pid=updateadmin&brand=updateadmin.com&c=VLC_Media_Player&country=PH&cb=695603710&filename=Update.exe&productKey=p2cy7hsnqs24ko7oox3ojhcexxzqfp3x&osName=Windows&osVersion=8&browserName=IE&browserVersion=7&zTmp=1

http://files4.fastdownload6.com/download/.../dl?bc=1126566&pid=updateadmin&brand=updateadmin.com&c=VLC_Media_Player&country=IN&cb=32557643&filename=Update.exe&productKey=p2cy7hsnqs24ko7oox3ojhcexxzqfp3x&osName=Windows&osVersion=8&browserName=IE&browserVersion=7&zTmp=1

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