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nos_down.exe

NOS_downloader V1.0

INCA INTERNET CO., LTD.

The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. The file has been seen being downloaded from www.hanaw.com.
Publisher:
INCA Internet Co.,Ltd.  (signed by INCA INTERNET CO., LTD.)

Product:
NOS_downloader V1.0

Version:
2016. 4. 28. 3

MD5:
1d3b33464d62ff7f17c22035e3d59f77

SHA-1:
9832b300416d10190e2223a336fe91088a67beb7

SHA-256:
2b9677e6389593c830f27ab089368d2300b615134d1c8996fbcdcf5ca3e37944

Scanner detections:
0 / 68

Status:
Clean (as of last analysis)

Analysis date:
4/29/2024 1:24:18 AM UTC  (today)

File size:
382.9 KB (392,048 bytes)

Product version:
2016. 4. 28. 3

Copyright:
Copyright (C) INCA Internet Co., Ltd.

Original file name:
nos_down.exe

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\appdata\local\microsoft\windows\temporary internet files\content.ie5\{random}\nos_down.exe

Digital Signature
Signed by:
INCA INTERNET CO., LTD.

Authority:
VeriSign, Inc.

Valid from:
11/9/2015 9:00:00 AM

Valid to:
11/9/2016 8:59:59 AM

Subject:
CN="INCA INTERNET CO., LTD.", OU=IT Team, O="INCA INTERNET CO., LTD.", L=Guro-gu, S=SEOUL, C=KR

Issuer:
CN=VeriSign Class 3 Code Signing 2010 CA, OU=Terms of use at https://www.verisign.com/rpa (c)10, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
664F30CDAC47D6762DBAEAD897CBEDF1

File PE Metadata
Compilation timestamp:
2/25/2012 4:19:59 AM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
6144:bEUXFJDLThxQkzF0OZC0ab8atjXmDYVGh0/8fwN9d9Jmk//k/:bEsVLTPxO0v19KjowNz9JmH

Entry address:
0x39E3

Entry point:
81, EC, D4, 02, 00, 00, 53, 55, 56, 57, 6A, 20, 33, ED, 5E, 89, 6C, 24, 18, C7, 44, 24, 10, D8, 91, 40, 00, 89, 6C, 24, 14, FF, 15, 30, 80, 40, 00, 68, 01, 80, 00, 00, FF, 15, B8, 80, 40, 00, 55, FF, 15, C0, 82, 40, 00, 6A, 08, A3, B8, 2E, 47, 00, E8, 37, 2A, 00, 00, 55, 68, B4, 02, 00, 00, A3, D0, 2D, 47, 00, 8D, 44, 24, 38, 50, 55, 68, 1C, 93, 40, 00, FF, 15, 84, 81, 40, 00, 68, 04, 93, 40, 00, 68, C0, AD, 46, 00, E8, 19, 27, 00, 00, FF, 15, B4, 80, 40, 00, 50, BF, A0, 30, 4C, 00, 57, E8, 07, 27, 00, 00...
 
[+]

Entropy:
7.8132

Packer / compiler:
Nullsoft install system v2.x

Code size:
28 KB (28,672 bytes)

The file nos_down.exe has been seen being distributed by the following URL.

https://www.hanaw.com/common/security/.../nos_down.exe

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