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1stbrowser.exe

Installer

SIEN SA

The application 1stbrowser.exe by SIEN SA has been detected as a potentially unwanted program by 1 anti-malware scanner with very strong indications that the file is a potential threat. This is a self-extracting archive and installer and has been known to bundle potentially unwanted software.
Publisher:
S  (signed by SIEN SA)

Product:
Installer

Version:
4.42.1.1

MD5:
a9a0fe19ac9592b449c79062a7516ca2

SHA-1:
1bc62f75ed38d8221f511befbb79cbb9b663b6ff

SHA-256:
4e5d873662b56d57779e1adce1d5501556865256154fbd7d2ea39fa0b30d3297

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
4/16/2024 2:25:22 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Sien (M)
17.2.2.17

File size:
2.4 MB (2,505,880 bytes)

Product version:
4.42.1.1

Copyright:
Copyright (C) 2016

Original file name:
Installer.exe

File type:
Executable application (Win32 EXE)

Language:
English (United States)

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

Digital Signature
Signed by:
SIEN SA

Authority:
GlobalSign nv-sa

Valid from:
6/6/2016 8:20:17 AM

Valid to:
6/7/2017 8:20:17 AM

Subject:
CN=SIEN SA, O=SIEN SA, L=Paris, C=FR

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

Serial number:
1121854422706CE0F08C49817C88B651891F

File PE Metadata
Compilation timestamp:
10/10/2016 5:37:41 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
14.0

Entry address:
0x1501B0

Entry point:
E8, B0, 08, 00, 00, E9, 8E, FE, FF, FF, FF, 25, F4, 9A, 5B, 00, 8B, 4D, F4, 64, 89, 0D, 00, 00, 00, 00, 59, 5F, 5F, 5E, 5B, 8B, E5, 5D, 51, F2, C3, 8B, 4D, F0, 33, CD, F2, E8, 5C, F5, FF, FF, F2, E9, DA, FF, FF, FF, 8B, 4D, EC, 33, CD, F2, E8, 4B, F5, FF, FF, F2, E9, C9, 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, C8, EF, 61, 00, 33, C5, 50, FF, 75, FC, C7, 45, FC, FF, FF, FF, FF, 8D, 45, F4, 64, A3, 00, 00, 00, 00, F2, C3, 50, 64, FF, 35, 00...
 
[+]

Code size:
1.7 MB (1,798,656 bytes)

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 e9.28.6132.ip4.static.sl-reverse.com  (50.97.40.233:80)

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

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

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

TCP (HTTP):
Connects to a23-4-43-27.deploy.static.akamaitechnologies.com  (23.4.43.27:80)

TCP (HTTP):
Connects to a23-4-37-163.deploy.static.akamaitechnologies.com  (23.4.37.163:80)

TCP (HTTP SSL):
Connects to 117-224-13-177.skybandalarga.com.br  (177.13.224.117:443)

TCP (HTTP):
Connects to 106-224-13-177.skybandalarga.com.br  (177.13.224.106:80)

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