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codec_pack.exe

setup_mf

CJCS InvestService

The application codec_pack.exe, “setup_mf Setup ” by CJCS InvestService 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 Inno Setup installer. The file has been seen being downloaded from mygameonline.com.
Publisher:
CJCS InvestService  (signed and verified)

Product:
setup_mf

Description:
setup_mf Setup

MD5:
d02c201339b8066c6e57f7463fedde17

SHA-1:
aa5b8dacfd93b177a604be0649f1b7a3f31ba9b3

SHA-256:
2cd24457663aa10dffb2afbee45ce6791359b3357f7a6019bee4887cd510f212

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:
1/12/2025 8:27:37 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.CJCSInvestService.Installer (M)
15.12.24.11

File size:
2.5 MB (2,655,056 bytes)

Product version:
1.0.0.0

File type:
Executable application (Win32 EXE)

Installer:
Inno Setup

Language:
Language Neutral

Common path:
C:\users\{user}\downloads\codec_pack.exe

Digital Signature
Signed by:
CJCS InvestService

Authority:
Thawte, Inc.

Valid from:
7/16/2012 8:00:00 PM

Valid to:
7/17/2013 7:59:59 PM

Subject:
CN=CJCS InvestService, OU=IT, O=CJCS InvestService, L=Moscow, S=Russian Federation, C=RU

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

Serial number:
6741A0610E4986E74E3B0B441A52A869

File PE Metadata
Compilation timestamp:
6/19/1992 6:22:17 PM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
49152:TqthNchR/qpYrztPfeOuw2IimCEDdcM12d8naZyPzIRuyHY3qLxb:+thNUaEtPW/w2mCwdccnaZjpYaLxb

Entry address:
0x9C40

Entry point:
55, 8B, EC, 83, C4, C4, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, 86, 94, FF, FF, E8, 8D, A6, FF, FF, E8, 1C, A9, FF, FF, E8, BF, A9, FF, FF, E8, 5E, C9, FF, FF, E8, C9, F2, FF, FF, E8, 30, F4, FF, FF, 33, C0, 55, 68, FC, A2, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, C5, A2, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, C0, 40, 00, E8, 96, FE, FF, FF, E8, C9, FA, FF, FF, 8D, 55, F0, 33, C0, E8, 83, CF, FF, FF, 8B, 55, F0, B8, 24, CE, 40, 00, E8, 32, 95, FF, FF, 6A, 02, 6A, 00, 6A, 01, 8B, 0D, 24, CE...
 
[+]

Entropy:
7.9666

Packer / compiler:
Inno Setup v5.x - Installer Maker

Code size:
37 KB (37,888 bytes)

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

http://mygameonline.com/download/.../vTNlC60exvwS92RLcQH&codecs=1

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