» 1stbrowser.exe
Overview
Analysis
File Details
Downloads (44)
Network (35)

1stbrowser.exe

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 1stbrowser.exe by SIEN S.A has been detected as a potentially unwanted program 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 SIEN SuperInstall installer. The file has been seen being downloaded from filehippo.com and multiple other hosts.

File name:

1stbrowser.exe

Publisher:

SIEN (signed by SIEN S.A.)

Product:

Installer

Version:

4.2.4.4

MD5:

fc2c5f605c4a77d36071c53ae3766a69

SHA-1:

ef21f910cf2d954cd0ff6b97d3ca2d399e538435

SHA-256:

ef70d74a14af53162bbc8fe02430e46a3af6b615956c3e9379be939afbf6f81d

Scanner detections:

1 / 68

Status:

Potentially unwanted

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:

4/20/2024 2:43:47 AM UTC (today)

Scan engine

Detection

Engine version

Reason Heuristics

PUP.Sien.SIENSA.Bundler (M)

16.1.31.18

File size:

3.7 MB (3,836,520 bytes)

Product version:

4.2.4.4

Original file name:

Installer.exe

File type:

Executable application (Win32 EXE)

Bundler/Installer:

SIEN SuperInstall

Language:

English (United States)

Common path:

C:\users\{user}\downloads\1stbrowser.exe

Digital Signature

Signed by:

SIEN S.A.

Authority:

GlobalSign nv-sa

Valid from:

6/15/2015 7:50:10 AM

Valid to:

6/15/2016 7:50:10 AM

Subject:

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:

1121D1DF1CB73206967A3311ED8724668997

File PE Metadata

Compilation timestamp:

1/7/2016 6:26:11 AM

OS version:

5.1

OS bitness:

Win32

Subsystem:

Windows GUI

Linker version:

12.0

CTPH (ssdeep):

98304:rYtYxNQe+PFzPQB2AsPos+0tbkisojBGxVv19EysXpCDx0NotAq:qvY2LQqiis7xVd9opCDx0Ni

Entry address:

0x209C91

Entry point:

E8, 55, 3E, 02, 00, E9, 39, FE, FF, FF, 8B, 4D, F4, 64, 89, 0D, 00, 00, 00, 00, 59, 5F, 5F, 5E, 5B, 8B, E5, 5D, 51, C3, 8B, 4D, F0, 33, CD, E8, EB, AB, FF, FF, E9, DD, FF, FF, FF, 8B, 4D, EC, 33, CD, E8, DC, AB, FF, FF, E9, CE, FF, FF, FF, 50, 64, FF, 35, 00, 00, 00, 00, 8D, 44, 24, 0C, 2B, 64, 24, 0C, 53, 56, 57, 89, 28, 8B, E8, A1, 90, 24, 72, 00, 33, C5, 50, FF, 75, FC, C7, 45, FC, FF, FF, FF, FF, 8D, 45, F4, 64, A3, 00, 00, 00, 00, C3, 50, 64, FF, 35, 00, 00, 00, 00, 8D, 44, 24, 0C, 2B, 64, 24, 0C, 53... 
[+]

Entropy:

6.4563

Code size:

2.5 MB (2,645,504 bytes)

The file 1stbrowser.exe has been seen being distributed by the following 44 URLs.

http://filehippo.com/download/file/.../

http://dl1.filehippo.com/.../1stBrowser.exe

http://fs41.filehippo.com/1707/.../1stBrowser.exe

http://filehippo.com/download/file/.../

http://dl2.filehippo.com/.../1stBrowser.exe

http://fs40.filehippo.com/1739/.../1stBrowser.exe

Latest 30 of 44 download URLs

The executing file has been seen to make the following network communications in live environments.

TCP (HTTP):

Connects to ec2-52-55-12-167.compute-1.amazonaws.com (52.55.12.167:80)

TCP (HTTP):

Connects to ec2-52-45-106-116.compute-1.amazonaws.com (52.45.106.116:80)

TCP (HTTP):

Connects to ec2-23-23-112-220.compute-1.amazonaws.com (23.23.112.220:80)

TCP (HTTP):

Connects to ec2-50-19-113-170.compute-1.amazonaws.com (50.19.113.170:80)

TCP (HTTP):

Connects to 63.db.0cd8.ip4.static.sl-reverse.com (216.12.219.99:80)

TCP (HTTP):

Connects to i0-h0-s1211.p11-fra.cdngp.net (174.35.71.29:80)

TCP (HTTP):

Connects to e4.56.089f.ip4.static.sl-reverse.com (159.8.86.228:80)

TCP (HTTP):

Connects to a92-122-203-12.deploy.akamaitechnologies.com (92.122.203.12:80)

TCP (HTTP):

Connects to a173-222-71-49.deploy.static.akamaitechnologies.com (173.222.71.49:80)

TCP (HTTP):

Connects to 99.57.7a9f.ip4.static.sl-reverse.com (159.122.87.153:80)

TCP (HTTP):

Connects to i0-h0-s2006.p0-pmo.cdngp.net (174.35.82.75:80)

TCP (HTTP):

Connects to i0-h0-s2004.p0-pmo.cdngp.net (174.35.82.73:80)

TCP (HTTP):

Connects to a23-33-0-174.deploy.static.akamaitechnologies.com (23.33.0.174:80)

TCP (HTTP SSL):

Connects to tw194-static241.tw1.com (110.93.194.241:443)

TCP (HTTP SSL):

Connects to mx-ll-110.164.10-20.static.3bb.co.th (110.164.10.20:443)

TCP (HTTP):

Connects to i0-h0-s2009.p0-pmo.cdngp.net (174.35.82.78:80)

TCP (HTTP):

Connects to i0-h0-s2008.p0-pmo.cdngp.net (174.35.82.77:80)

TCP (HTTP):

Connects to i0-h0-s2003.p0-pmo.cdngp.net (174.35.82.72:80)

TCP (HTTP):

Connects to i0-h0-s1212.p11-fra.cdngp.net (174.35.71.30:80)

TCP (HTTP):

Connects to a4.4a.caa1.ip4.static.sl-reverse.com (161.202.74.164:80)

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