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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 an Internet Explorer cache folder.
Publisher:
Maroin Co., Ltd  (signed and verified)

MD5:
24b70f3839bee482137f4e1885f00cdf

SHA-1:
826d7c9966453fbb842a9453026f3471d7f743e2

SHA-256:
a32010bd61396d5b812a575af7823c107df1d705be84c9369f6aba32e9addece

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:
4/26/2024 8:31:12 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP (M)
16.8.22.18

File size:
1.4 MB (1,476,224 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:
12/18/2013 9:00:00 AM

Valid to:
2/17/2016 8:59:59 AM

Subject:
CN="Maroin Co., Ltd", 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:
5DF1E27BEBF6F3BA4B33632B858EC872

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):
24576:VYujltGNq7y4KZqXB+V/f4WX6VTT8m0idZ:2uOqO4KZqXABQWITEA

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:
7.3904

Packer / compiler:
Nullsoft install system v2.x

Code size:
22.5 KB (23,040 bytes)

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