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fb0360e5-a1d2-424c-aeb3-dc3bcd69d2ff.exe

1stBrowser Installer

SIEN SA

The application fb0360e5-a1d2-424c-aeb3-dc3bcd69d2ff.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 setup and installation application and has been known to bundle potentially unwanted software. The file has been seen being downloaded from vzbucket.go.im.
Publisher:
The 1stBrowser Authors  (signed by SIEN SA)

Product:
1stBrowser Installer

Version:
45.0.2454.157

MD5:
31fab71f2548499ab104db2f3bcfb7e1

SHA-1:
ce2386e4214d158fc2da3abb41ed820f42aa068c

SHA-256:
d7160114175321899762ece60e17b005252827e8c79c53e4ef7f2a846cb4e817

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
12/24/2024 5:28:18 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Sien.SIENSA.Installer (M)
16.3.31.16

File size:
40.2 MB (42,119,776 bytes)

Product version:
45.0.2454.157

Copyright:
Copyright 2015 The 1stBrowser Authors. All rights reserved.

File type:
Executable application (Win32 EXE)

Language:
English (United States)

Common path:
C:\users\{user}\appdata\local\temp\fb0360e5-a1d2-424c-aeb3-dc3bcd69d2ff.exe

Digital Signature
Signed by:
SIEN SA

Authority:
GlobalSign nv-sa

Valid from:
9/14/2015 9:05:56 AM

Valid to:
9/14/2016 9:05:56 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:
11213DB3C4AD369B17F720086E1BBB7BB700

File PE Metadata
Compilation timestamp:
3/30/2016 1:04:15 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
12.0

CTPH (ssdeep):
786432:Ia55QdfUpd/6VQZ6ltEz15Mh8pUrbFZOPDDP0MENxKfTdR6R461Gh:v4dRAzUh8onUfn8Ib6C6C

Entry address:
0x2137

Entry point:
6A, 00, FF, 15, B4, 40, 40, 00, 50, E8, 98, 09, 00, 00, 59, 50, FF, 15, A0, 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, EE, 0C, 00, 00, 8D, 4D, F8, E8, 0B, 0D, 00, 00, 84, C0, 0F, 84, 9D, 00, 00, 00, 8D, 4D, F8, E8, 03, 0D, 00, 00, 83, F8, 01, 0F, 82, 8C, 00, 00, 00, 8D, 4D, F8, E8, F2, 0C, 00, 00, 3B, 05, E0, 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 fb0360e5-a1d2-424c-aeb3-dc3bcd69d2ff.exe has been seen being distributed by the following URL.

http://vzbucket.go.im/6ae76ba4-7119-45c8-94ed-52f23abece69/build/.../fb0360e5-a1d2-424c-aeb3-dc3bcd69d2ff.exe

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