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d0c87ecc-91bf-45df-85e9-f7d513ae5d5a.exe

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 application d0c87ecc-91bf-45df-85e9-f7d513ae5d5a.exe 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 an Internet Explorer cache folder. The file has been seen being downloaded from vzbucket.go.im.
Publisher:
The 1stBrowser Authors  (signed by SIEN S.A.)

Product:
1stBrowser Installer

Version:
42.0.2311.95

MD5:
71e3374b5df7a75c2d87ef6726a78392

SHA-1:
14bc976896d30c69eea3be484cca270acf666d69

SHA-256:
8258c6e2d3271150b20ce44bdb308fc8b7c9029c0eba7782a0b7cc7f8bfdf879

Scanner detections:
3 / 68

Status:
Potentially 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:
5/1/2024 12:47:12 PM UTC  (today)

Scan engine
Detection
Engine version

Bkav FE
W32.HfsAdware
1.3.0.7062

Dr.Web
Adware.Iminent.80
9.0.1.0262

Reason Heuristics
PUP.Sien.SIENSA.Bundler (M)
15.9.19.11

File size:
39 MB (40,885,368 bytes)

Product version:
42.0.2311.95

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

File type:
Executable application (Win32 EXE)

Bundler/Installer:
SIEN SuperInstall

Language:
English (United States)

Common path:
C:\users\{user}\appdata\local\microsoft\windows\temporary internet files\content.ie5\{random}\d0c87ecc-91bf-45df-85e9-f7d513ae5d5a.exe

Digital Signature
Signed by:
SIEN S.A.

Authority:
GlobalSign nv-sa

Valid from:
2/17/2015 12:45:29 PM

Valid to:
6/12/2016 10:20:39 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:
8/11/2015 6:00:56 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
12.0

CTPH (ssdeep):
786432:5n+g/7xVUabd1kJM8APKpnyMRXLORiyJ7V9p9olFYR+V/zya:51/1VU0zKMzP0yGXLORnJB9j2FYR+V/T

Entry address:
0x2096

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...
 
[+]

Packer / compiler:
FASM v1.3x

Code size:
8 KB (8,192 bytes)

The file d0c87ecc-91bf-45df-85e9-f7d513ae5d5a.exe has been seen being distributed by the following URL.

http://vzbucket.go.im/6ae76ba4-7119-45c8-94ed-52f23abece69/build/.../d0c87ecc-91bf-45df-85e9-f7d513ae5d5a.exe

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