home

openkeyword_silent.exe

Maroin Co., Ltd

The application openkeyword_silent.exe by Maroin Co. has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. It is also typically executed from the user's temporary directory. The file has been seen being downloaded from sub.openkeyword.co.kr.
Publisher:
Maroin Co., Ltd  (signed and verified)

MD5:
c73f38da66cc62399cd5d8e4cc15607a

SHA-1:
9869a6edbdfe458fdb5f6b2db942c9fd6b1aba9c

SHA-256:
d9b6b6cb5f55e59429b820d26444fbecaf81b8d1ec2aa15eb6f39d45b9b2236f

Scanner detections:
1 / 68

Status:
Adware

Note:
Our current pool of anti-malware engines have not currently detected this file, however based on our own detection heuristics we feel that this file is unwanted.

Analysis date:
11/16/2024 4:25:33 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.MaroinCo.Installer (M)
15.12.20.7

File size:
2.6 MB (2,740,928 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\appdata\local\temp\openkeyword_silent.exe

Digital Signature
Signed by:
Maroin Co., Ltd

Authority:
thawte, Inc.

Valid from:
12/1/2015 9:00:00 AM

Valid to:
3/2/2018 8:59:59 AM

Subject:
CN="Maroin Co., Ltd", O="Maroin Co., Ltd", L=Suyeong-gu, S=Busan, C=KR

Issuer:
CN=thawte SHA256 Code Signing CA, O="thawte, Inc.", C=US

Serial number:
6247B0D6AE6DA842E9AFD19046D234EF

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):
49152:517Km3M/OiV0vgXNZWtyFa3Su1gDJJu06IjrrfszicmE3LhBJmLX:517R8Wyytt3Su1CJJujIjrwzibE7XJoX

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:
7.9982

Packer / compiler:
Nullsoft install system v2.x

Code size:
22.5 KB (23,040 bytes)

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

http://sub.openkeyword.co.kr/opapp/postmedia1/app/.../openkeyword_silent.exe

Remove openkeyword_silent.exe - Powered by Reason Core Security
herdProtect is a second line of defense malware removal platform powered by 68 anti-malware engines in the cloud. Since no single anti-malware program is perfect 100% of the time, herdProtect utilizes a 'herd' of multiple engines to guarantee the widest coverage and the earliest possible detection.