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openkeyword_silent.exe

Maroin Co., Ltd

The application openkeyword_silent.exe by Maroin Co. has been detected as adware by 3 anti-malware scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. It is also typically executed from an Internet Explorer cache folder.
Publisher:
Maroin Co., Ltd  (signed and verified)

MD5:
6b1a7e0bddfd74884d99d11dd532dba5

SHA-1:
2db9238d6a901eab3dc02dc4301155c7b26696bf

SHA-256:
6474560b01c1452f7980cd064bd714c912d5bbf38dadfdca2b65d8f610e53fce

Scanner detections:
3 / 68

Status:
Adware

Analysis date:
4/25/2024 3:24:11 PM UTC  (today)

Scan engine
Detection
Engine version

AVG
MalSign.Generic
2015.0.3439

Norman
Kraddare.CERT
11.20140619

Reason Heuristics
PUP.MaroinCo.S
14.8.25.1

File size:
149.7 KB (153,296 bytes)

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}\openkeyword_silent.exe

Digital Signature
Signed by:
Maroin Co., Ltd

Authority:
Thawte, Inc.

Valid from:
1/14/2013 9:00:00 AM

Valid to:
1/15/2014 8:59:59 AM

Subject:
CN="Maroin Co., Ltd", OU=Dev Team, O="Maroin Co., Ltd", L=Haeundae-gu, S=Busan, C=KR

Issuer:
CN=Thawte Code Signing CA - G2, O="Thawte, Inc.", C=US

Serial number:
45D35AE0597265A616314A55E3EBE91B

File PE Metadata
Compilation timestamp:
12/6/2009 7:50:41 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
3072:YLk395hYXJXn4wS+nleepEcBeD40hogu2pLAr/ECfip1aXC+nleepEcBeD40yfiS:YQqx4wTeepEcBV0qg1CrfieXDeepEcBD

Entry address:
0x30CB

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 60, 91, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B0, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, 38, 3F, 42, 00, E8, F1, 2B, 00, 00, A3, 84, 3E, 42, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 30, F4, 41, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 80, 36, 42, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, 90, 42, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Entropy:
7.8063

Packer / compiler:
Nullsoft install system v2.x

Code size:
22.5 KB (23,040 bytes)

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