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winupdate.exe

Update Software

Green China Group

The application winupdate.exe, “Update Software Setup ” has been detected as a potentially unwanted program by 24 anti-malware scanners. The program is a setup application that uses the Inno Setup installer, however the file is not signed with an authenticode signature from a trusted source. This is a malicious Bitcoin miner. Bitcoin-mining malware is designed to force computers to generate Bitcoins for cybercriminals' use and consumes computing power. The file has been seen being downloaded from s3-ap-southeast-1.amazonaws.com and multiple other hosts.
Publisher:
Green China Group

Product:
Update Software

Description:
Update Software Setup

MD5:
f7cb7e5ec0a349e143bf0d7b36a8fc18

SHA-1:
00fd7f875940101432338e25cce77bde873620c9

SHA-256:
71f1934e62ff81b0f60b89c8c503197b11917e60218b767b0db7b25bdaa18f5d

Scanner detections:
24 / 68

Status:
Potentially unwanted

Explanation:
The program will mine for BitCoins using the computer's GPU in the background and may be installed and run without the user's knowledge.

Analysis date:
4/29/2024 9:24:19 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Application.BitCoinMiner.BM
1066

Agnitum Outpost
Riskware.BitCoinMiner
7.1.1

AhnLab V3 Security
Trojan/Win32.BitCoinMiner
2014.03.03

Avira AntiVirus
TR/Tivmonk.A.2
7.11.134.62

avast!
Win32:Dropper-gen [Drp]
2014.9-140305

Baidu Antivirus
Trojan.Win64.BitCoinMiner
4.0.3.1435

Bitdefender
Application.BitCoinMiner.BM
1.0.20.320

Dr.Web
Tool.BtcMine.130
9.0.1.064

ESET NOD32
Win64/BitCoinMiner (variant)
8.9491

F-Secure
Application.BitCoinMiner.BM
11.2014-05-03_4

G Data
Application.BitCoinMiner.BM
14.3.24

IKARUS anti.virus
Trojan.Win32.Tivmonk
t3scan.2.2.29

Kaspersky
not-a-virus:RiskTool.Win64.BitCoinMiner
14.0.0.4217

McAfee
Artemis!F7CB7E5EC0A3
5600.7200

Microsoft Security Essentials
Trojan:Win32/Tivmonk.A
1.10302

MicroWorld eScan
Application.BitCoinMiner.BM
15.0.0.192

NANO AntiVirus
Riskware.Win64.BitCoinMiner.cqywam
0.28.0.58101

Qihoo 360 Security
Win32/Virus.RiskTool.26e
1.0.0.1015

Sophos
Bitcoin Miner
4.98

Trend Micro House Call
TROJ_GEN.R08NH01C114
7.2.64

Vba32 AntiVirus
Riskware.BitcoinMiner.11207
3.12.24.3

VIPRE Antivirus
Trojan.Win32.Generic
27026

File size:
2 MB (2,047,320 bytes)

Product version:
1

File type:
Executable application (Win32 EXE)

Installer:
Inno Setup

Common path:
C:\Program Files\retro pc calculator\winupdate.exe

File PE Metadata
Compilation timestamp:
6/20/1992 1:22:17 AM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
49152:C9+2cK+NijGpTcbdSxXZmAi4fvG0Y5szsqq:MYijGZxpfiPr2sqq

Entry address:
0xA5F8

Entry point:
55, 8B, EC, 83, C4, C4, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, CE, 8A, FF, FF, E8, D5, 9C, FF, FF, E8, 64, 9F, FF, FF, E8, 07, A0, FF, FF, E8, A6, BF, FF, FF, E8, 11, E9, FF, FF, E8, 78, EA, FF, FF, 33, C0, 55, 68, C9, AC, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, 92, AC, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, C0, 40, 00, E8, 26, F5, FF, FF, E8, 11, F1, FF, FF, 80, 3D, 34, B2, 40, 00, 00, 74, 0C, E8, 23, F6, FF, FF, 33, C0, E8, C4, 97, FF, FF, 8D, 55, F0, 33, C0, E8, B6, C5, FF, FF, 8B, 55...
 
[+]

Entropy:
7.9943

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

Code size:
39.5 KB (40,448 bytes)

The file winupdate.exe has been seen being distributed by the following 2 URLs.

https://s3-ap-southeast-1.amazonaws.com/.../spop1.exe

https://s3-ap-southeast-1.amazonaws.com/.../spop1.exe

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