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winbig21-setup_bt.exe

Black Chip LTD

The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. The file has been seen being downloaded from get.winbig21.com.
Publisher:
Black Chip LTD  (signed and verified)

MD5:
8c1633093d3373fc856b1e9a5ee772b3

SHA-1:
c585e49c86b3231195080d608d6b6af896789814

SHA-256:
33ae1c116ffbc6b9ffecd6c9e6c9473586d47a46e9223f4934f5554cc220cbf5

Scanner detections:
0 / 68

Status:
Clean (as of last analysis)

Analysis date:
4/25/2024 8:41:06 PM UTC  (today)

File size:
924.5 KB (946,680 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\appdata\local\microsoft\windows\inetcache\ie\{random}\winbig21-setup_bt.exe

Digital Signature
Signed by:
Black Chip LTD

Authority:
Symantec Corporation

Valid from:
1/21/2016 7:00:00 PM

Valid to:
3/22/2019 7:59:59 PM

Subject:
CN=Black Chip LTD, O=Black Chip LTD, L=Nicosia, S=Cyprus, C=CY

Issuer:
CN=Symantec Class 3 SHA256 Code Signing CA, OU=Symantec Trust Network, O=Symantec Corporation, C=US

Serial number:
3B75C3236BAB1B62A4EF713D6C7C39C6

File PE Metadata
Compilation timestamp:
8/4/2015 8:46:30 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
24576:k+2yF/NIulxFXr5ZidqGQ19AJ5VYM0uFXLEEo/wRdrp1eid:Fyujpr5Z/9ALmup2Ip/d

Entry address:
0x335A

Entry point:
81, EC, D8, 02, 00, 00, 53, 55, 56, 57, 6A, 20, 33, ED, 5E, 89, 6C, 24, 18, C7, 44, 24, 10, 30, 92, 40, 00, 89, 6C, 24, 14, FF, 15, 34, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, BC, 70, 40, 00, 55, FF, 15, AC, 72, 40, 00, 6A, 09, A3, B8, 92, 42, 00, E8, 59, 2F, 00, 00, A3, 04, 92, 42, 00, 55, 8D, 44, 24, 38, 68, B4, 02, 00, 00, 50, 55, 68, A8, 06, 42, 00, FF, 15, 7C, 71, 40, 00, 68, 7C, 93, 40, 00, 68, 00, 82, 42, 00, E8, C4, 2B, 00, 00, FF, 15, 34, 71, 40, 00, BB, 00, 40, 43, 00, 50, 53, E8, B2, 2B, 00, 00...
 
[+]

Entropy:
7.9870

Packer / compiler:
Nullsoft install system v2.x

Code size:
24 KB (24,576 bytes)

The file winbig21-setup_bt.exe has been seen being distributed by the following URL.

http://get.winbig21.com/get/.../1826775

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