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d8930133-e73d-48b7-9f2c-3796da

1stBrowser Installer

SIEN S.A.

This is the SIEN AppScion Installer which bundles applications with offers for additional 3rd party software, mostly unwanted adware, and may be installed with minimal consent. The file d8930133-e73d-48b7-9f2c-3796da by SIEN S.A has been detected as a potentially unwanted program by 3 anti-malware scanners. The program is a setup application that uses the SIEN SuperInstall installer. It is also typically executed from the user's temporary directory. The file has been seen being downloaded from vzbucket.go.im.
Publisher:
The 1stBrowser Authors  (signed by SIEN S.A.)

Product:
1stBrowser Installer

Version:
42.0.2311.93

MD5:
4931fc99c4391e34fc6ba331455aaa25

SHA-1:
78729f820e79d59e219615d695ee202ff90a2585

SHA-256:
854fda2a2842f1ad026388aa5eba90ecd6dbce1cdfdb5b8495382ca19136ad25

Scanner detections:
3 / 68

Status:
Potentially unwanted

Description:
This is an installer which may bundle legitimate applications with offers for additional 3rd-party applications that may be unwanted by the user. While the installer contains an 'opt-out' feature this is not set be defult and is usually overlooked.

Analysis date:
5/1/2024 4:35:04 PM UTC  (today)

Scan engine
Detection
Engine version

Bkav FE
W32.HfsAdware
1.3.0.6979

Dr.Web
Adware.Iminent.59
9.0.1.0214

Reason Heuristics
PUP.Sien.SIENSA.Bundler (M)
15.8.2.14

File size:
39 MB (40,870,544 bytes)

Product version:
42.0.2311.93

Copyright:
Copyright 2014 The 1stBrowser Authors. All rights reserved.

Bundler/Installer:
SIEN SuperInstall

Language:
English (United States)

Common path:
C:\users\{user}\appdata\local\temp\{random}.tmp\d8930133-e73d-48b7-9f2c-3796da

Digital Signature
Signed by:
SIEN S.A.

Authority:
GlobalSign nv-sa

Valid from:
2/17/2015 3:45:29 AM

Valid to:
6/12/2016 1:20:39 AM

Subject:
E=support@sien.com, CN=SIEN S.A., O=SIEN S.A., L=Paris, C=FR

Issuer:
CN=GlobalSign CodeSigning CA - SHA256 - G2, O=GlobalSign nv-sa, C=BE

Serial number:
112158A643D1C958507AAB7FE826772BFA60

File PE Metadata
Compilation timestamp:
7/27/2015 7:31:27 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
12.0

CTPH (ssdeep):
786432:Tv9b13JeOmdLZOsc308E6/gmIUnt72DclDzVaiHnyb0Oe3IPcvXm2:Tvz3YOHsQEYTI4koDpHnse3IPcvW2

Entry address:
0x209E

Entry point:
6A, 00, FF, 15, A4, 40, 40, 00, 50, E8, FC, 08, 00, 00, 59, 50, FF, 15, 90, 40, 40, 00, CC, 55, 8B, EC, 81, EC, 14, 02, 00, 00, 53, 56, 8B, 75, 14, 85, F6, 0F, 84, BE, 00, 00, 00, FF, 75, 08, 8D, 4D, F8, FF, 75, 0C, FF, 75, 10, E8, BB, 0C, 00, 00, 8D, 4D, F8, E8, D8, 0C, 00, 00, 84, C0, 0F, 84, 9D, 00, 00, 00, 8D, 4D, F8, E8, D0, 0C, 00, 00, 83, F8, 01, 0F, 82, 8C, 00, 00, 00, 8D, 4D, F8, E8, BF, 0C, 00, 00, 3B, 05, EC, 14, 40, 00, 77, 7C, FF, 36, 33, C0, BB, 04, 01, 00, 00, 66, 89, 45, F4, 66, 89, 85, EC...
 
[+]

Entropy:
8.0000

Packer / compiler:
FASM v1.3x

Code size:
8 KB (8,192 bytes)

The file d8930133-e73d-48b7-9f2c-3796da has been seen being distributed by the following URL.

http://vzbucket.go.im/6ae76ba4-7119-45c8-94ed-52f23abece69/build/.../d8930133-e73d-48b7-9f2c-3796da46612f.exe

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