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olleh_certificate.exe

Dreamsecurity 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 cert.olleh.com.
Publisher:
Dreamsecurity Co., Ltd.  (signed and verified)

MD5:
fb5e69f9e2242e3c7df0551409cd3aa2

SHA-1:
9205dcb8bb4e6e59ba39e976787b8fe52589abcc

SHA-256:
f429055e6f3f22c67f3c76e38866c4f5924373c4e0b61155b71d2ef23fee0122

Scanner detections:
0 / 68

Status:
Clean (as of last analysis)

Analysis date:
12/28/2024 8:24:29 PM UTC  (today)

File size:
18.2 MB (19,128,408 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}\olleh_certificate.exe

Digital Signature
Signed by:
Dreamsecurity Co., Ltd.

Authority:
thawte, Inc.

Valid from:
4/12/2016 9:00:00 AM

Valid to:
7/13/2018 8:59:59 AM

Subject:
CN="Dreamsecurity Co., Ltd.", O="Dreamsecurity Co., Ltd.", L=Songpa, S=Seoul, C=KR

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

Serial number:
5A173A74657F8CF8A7AE91B34A3D7641

File PE Metadata
Compilation timestamp:
12/6/2009 7:50:52 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
393216:B/ixtId6kyrXUl5UsLclrIwzMul0CAukQLXVUpqvLSWW2:B/busDi7NY7iXVUUvLrl

Entry address:
0x30FA

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, 18, EC, 42, 00, E8, F1, 2B, 00, 00, A3, 64, EB, 42, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 98, 8F, 42, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 60, E3, 42, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, 40, 43, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Entropy:
7.9984

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

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

http://cert.olleh.com/olleh_certificate.exe

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