f6001c8b8d9084654ef5f429e672257b690d651f96e3c493e2f65457b8eabea1

Analysis

max time kernel
120s
max time network
125s
platform
windows10-2004_x64
resource
win10v2004-20240704-en
resource tags

arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
submitted
04-07-2024 23:23

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General

Target

GoKuai.exe
Size

1.2MB
MD5

c88e55030beee0aab14a4ec73787ad21
SHA1

eb3c3650f241541552c0cc5eadf79cf2a30004b8
SHA256

b3e0ba133ed323debe860a1f9fb08ec2dd9828d37c797e93a8a72d21a94e8243
SHA512

1211ab51047de3add915557af3857385b4f77e4c397495a0b8d15ae7954841dc120660aa8b92a2a561c2ed88d6290560682f0f6852134b2831194cc10f1541a7
SSDEEP

24576:GSyZAjoz5Un81ECU7MtHIvTta5AZd9JIS9FSKV2P0qY18w6qcXPKXQTTG4dBWyq:pyZAkz5UneECUYtHIvTta5AwSKKV22So

Score

6^/10

persistence

Malware Config

Signatures

Adds Run key to start application 2 TTPs 7 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

GoKuai.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2494989678-839960665-2515455429-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\GoKuai = "C:\\Users\\Admin\\AppData\\Local\\Temp\\GoKuai.exe mini"	GoKuai.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2494989678-839960665-2515455429-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\UserName	GoKuai.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2494989678-839960665-2515455429-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\PassWord	GoKuai.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2494989678-839960665-2515455429-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Time = 01000000	GoKuai.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2494989678-839960665-2515455429-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\First = 01000000	GoKuai.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2494989678-839960665-2515455429-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\CreateDriver = 01000000	GoKuai.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2494989678-839960665-2515455429-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\RigthMenu = 01000000	GoKuai.exe

Modifies registry class 22 IoCs

Processes:

GoKuai.exe

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\*\shell\¹»¿ìÉÏ´«	GoKuai.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Directory\shell\¹»¿ìÉÏ´«	GoKuai.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Directory\shell\¹»¿ìÉÏ´«\ = "¹»¿ìÎÄ¼þÉÏ´«"	GoKuai.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Directory\shell\¹»¿ìÉÏ´«\command	GoKuai.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Directory\shell\¹»¿ìÉÏ´«\command\Log = 00000000	GoKuai.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Directory\shell\¹»¿ìÉÏ´«\command\AgentIP	GoKuai.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\*\shell\¹»¿ìÉÏ´«\command\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\GoKuai.exe %1 upload"	GoKuai.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Directory\shell\¹»¿ìÉÏ´«\command\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\GoKuai.exe %1 folder"	GoKuai.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Directory\shell\¹»¿ìÉÏ´«\command\Agent = 00000000	GoKuai.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Directory\shell\¹»¿ìÉÏ´«\command\AgentPort = 00000000	GoKuai.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Directory\shell\¹»¿ìÉÏ´«\command\Recevies = 02000000	GoKuai.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\*\shell\¹»¿ìÉÏ´«\Icon = "C:\\Users\\Admin\\AppData\\Local\\Temp\\GoKuai.exe"	GoKuai.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Directory\shell\¹»¿ìÉÏ´«\Icon = "C:\\Users\\Admin\\AppData\\Local\\Temp\\GoKuai.exe"	GoKuai.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Directory\shell\¹»¿ìÉÏ´«\command\NetType = 00000000	GoKuai.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Directory\shell\¹»¿ìÉÏ´«\command\Message = 00000000	GoKuai.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Directory\shell\¹»¿ìÉÏ´«\command\AgentPassword	GoKuai.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\*\shell\¹»¿ìÉÏ´«\ = "¹»¿ìÎÄ¼þÉÏ´«"	GoKuai.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\*\shell\¹»¿ìÉÏ´«\command	GoKuai.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Directory\shell\¹»¿ìÉÏ´«\command\AgentUseUser = 00000000	GoKuai.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Directory\shell\¹»¿ìÉÏ´«\command\AgentUser	GoKuai.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\Directory\shell\¹»¿ìÉÏ´«\command\Scandisk = 02000000	GoKuai.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Directory\shell\¹»¿ìÉÏ´«\command\CurrentPath	GoKuai.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

GoKuai.exe

pid	Process
2552	GoKuai.exe

Suspicious use of SendNotifyMessage 1 IoCs

Processes:

GoKuai.exe

pid	Process
2552	GoKuai.exe

Suspicious use of SetWindowsHookEx 10 IoCs

Processes:

GoKuai.exe

pid	Process
2552	GoKuai.exe
2552	GoKuai.exe
2552	GoKuai.exe
2552	GoKuai.exe
2552	GoKuai.exe
2552	GoKuai.exe
2552	GoKuai.exe
2552	GoKuai.exe
2552	GoKuai.exe
2552	GoKuai.exe

C:\Users\Admin\AppData\Local\Temp\GoKuai.exe
"C:\Users\Admin\AppData\Local\Temp\GoKuai.exe"
1⤵
- Adds Run key to start application
- Modifies registry class
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
PID:2552

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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