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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.
Publisher:
Symbu LLC  (signed and verified)

MD5:
c1e03cfbdb6eeb4f66674397a2590011

SHA-1:
bf9e10288d86ffa26fd69802933a95163ebeca6a

SHA-256:
c7d58b3e10c75bc90212f3c953c4e84ae6d340a167cf1de9a515eaea7a144889

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 'download manager' is also considered bundleware, a utility designed to download software (possibly legitimate or opensource) and bundle it with a number of optional offers including ad-supported utilities, toolbars, shopping comparison tools and browser extensions.

Analysis date:
12/26/2024 6:27:27 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Tightrope.Symbu.Bundler (M)
16.6.4.15

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 3:00:00 AM

Valid to:
1/25/2016 3:00:00 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 9:35:11 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
12288:U4BS2ly9NKPRdegPsgQr/745jezvROTVo80d1WU1ntTxJ10gJ1Tvz2:UhhKeiHQr/s1uRCBQWMxDp2

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 URL.

http://files4.fastdownload6.com/download/.../dl?bc=1126566&pid=updateadmin&brand=updateadmin.com&c=VLC_Media_Player&country=IQ&cb=-257009961&filename=Update.exe&productKey=p2cy7hsnqs24ko7oox3ojhcexxzqfp3x&osName=Windows&osVersion=7&browserName=IE&browserVersion=7&zTmp=1

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