Malware Analysis Report

2025-08-11 01:37

Sample ID 231208-ez4mmsad8z
Target 1a0340bac8f79df2ee140124cdcdace4852812a46666403cf7f5bb8ee3bdee1c
SHA256 1a0340bac8f79df2ee140124cdcdace4852812a46666403cf7f5bb8ee3bdee1c
Tags
vmprotect gh0strat rat upx
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

1a0340bac8f79df2ee140124cdcdace4852812a46666403cf7f5bb8ee3bdee1c

Threat Level: Known bad

The file 1a0340bac8f79df2ee140124cdcdace4852812a46666403cf7f5bb8ee3bdee1c was found to be: Known bad.

Malicious Activity Summary

vmprotect gh0strat rat upx

Gh0strat

Gh0st RAT payload

Blocklisted process makes network request

UPX packed file

VMProtect packed file

Enumerates connected drives

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Checks processor information in registry

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-08 04:23

Signatures

VMProtect packed file

vmprotect
Description Indicator Process Target
N/A N/A N/A N/A

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-08 04:23

Reported

2023-12-08 04:26

Platform

win7-20231129-en

Max time kernel

124s

Max time network

121s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\1a0340bac8f79df2ee140124cdcdace4852812a46666403cf7f5bb8ee3bdee1c.dll,#1

Signatures

Gh0st RAT payload

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
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Gh0strat

rat gh0strat

Blocklisted process makes network request

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A

UPX packed file

upx
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
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N/A N/A N/A N/A

VMProtect packed file

vmprotect
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Enumerates connected drives

Description Indicator Process Target
File opened (read-only) \??\H: C:\Windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\J: C:\Windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\K: C:\Windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\Q: C:\Windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\W: C:\Windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\E: C:\Windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\Z: C:\Windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\R: C:\Windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\I: C:\Windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\M: C:\Windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\N: C:\Windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\O: C:\Windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\P: C:\Windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\T: C:\Windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\V: C:\Windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\G: C:\Windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\L: C:\Windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\S: C:\Windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\U: C:\Windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\X: C:\Windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\Y: C:\Windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\B: C:\Windows\SysWOW64\rundll32.exe N/A

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Windows\SysWOW64\rundll32.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: 33 N/A C:\Windows\SysWOW64\rundll32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\SysWOW64\rundll32.exe N/A
Token: 33 N/A C:\Windows\SysWOW64\rundll32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2232 wrote to memory of 2884 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2232 wrote to memory of 2884 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2232 wrote to memory of 2884 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2232 wrote to memory of 2884 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2232 wrote to memory of 2884 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2232 wrote to memory of 2884 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2232 wrote to memory of 2884 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\1a0340bac8f79df2ee140124cdcdace4852812a46666403cf7f5bb8ee3bdee1c.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\1a0340bac8f79df2ee140124cdcdace4852812a46666403cf7f5bb8ee3bdee1c.dll,#1

Network

Country Destination Domain Proto
US 8.8.8.8:53 fdfhfcb.top udp
HK 206.238.115.228:80 fdfhfcb.top tcp
HK 206.238.115.228:8000 fdfhfcb.top tcp
HK 206.238.115.228:8000 fdfhfcb.top tcp

Files

memory/2884-1-0x0000000010000000-0x00000000100A0000-memory.dmp

memory/2884-0-0x0000000010000000-0x00000000100A0000-memory.dmp

memory/2884-3-0x00000000002E0000-0x00000000002E1000-memory.dmp

memory/2884-5-0x0000000002950000-0x00000000029AF000-memory.dmp

memory/2884-6-0x00000000031C0000-0x0000000003349000-memory.dmp

memory/2884-10-0x00000000031C0000-0x0000000003349000-memory.dmp

memory/2884-9-0x00000000031C0000-0x0000000003349000-memory.dmp

memory/2884-11-0x00000000031C0000-0x0000000003349000-memory.dmp

memory/2884-12-0x00000000031C0000-0x0000000003349000-memory.dmp

memory/2884-13-0x00000000031C0000-0x0000000003349000-memory.dmp

memory/2884-14-0x00000000031C0000-0x0000000003349000-memory.dmp

memory/2884-22-0x0000000010000000-0x00000000100A0000-memory.dmp

memory/2884-23-0x00000000031C0000-0x0000000003349000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-08 04:23

Reported

2023-12-08 04:26

Platform

win10v2004-20231130-en

Max time kernel

139s

Max time network

151s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\1a0340bac8f79df2ee140124cdcdace4852812a46666403cf7f5bb8ee3bdee1c.dll,#1

Signatures

Gh0st RAT payload

Description Indicator Process Target
N/A N/A N/A N/A
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Gh0strat

rat gh0strat

Blocklisted process makes network request

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A

UPX packed file

upx
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
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VMProtect packed file

vmprotect
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Enumerates connected drives

Description Indicator Process Target
File opened (read-only) \??\U: C:\Windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\Y: C:\Windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\I: C:\Windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\K: C:\Windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\M: C:\Windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\O: C:\Windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\V: C:\Windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\R: C:\Windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\X: C:\Windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\H: C:\Windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\L: C:\Windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\N: C:\Windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\P: C:\Windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\Q: C:\Windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\S: C:\Windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\T: C:\Windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\W: C:\Windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\B: C:\Windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\E: C:\Windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\G: C:\Windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\J: C:\Windows\SysWOW64\rundll32.exe N/A
File opened (read-only) \??\Z: C:\Windows\SysWOW64\rundll32.exe N/A

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Windows\SysWOW64\rundll32.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: 33 N/A C:\Windows\SysWOW64\rundll32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\SysWOW64\rundll32.exe N/A
Token: 33 N/A C:\Windows\SysWOW64\rundll32.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4748 wrote to memory of 4072 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4748 wrote to memory of 4072 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4748 wrote to memory of 4072 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\1a0340bac8f79df2ee140124cdcdace4852812a46666403cf7f5bb8ee3bdee1c.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\1a0340bac8f79df2ee140124cdcdace4852812a46666403cf7f5bb8ee3bdee1c.dll,#1

Network

Country Destination Domain Proto
US 8.8.8.8:53 fdfhfcb.top udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 208.194.73.20.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
HK 206.238.115.228:80 fdfhfcb.top tcp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.200:443 g.bing.com tcp
HK 206.238.115.228:8000 fdfhfcb.top tcp
US 8.8.8.8:53 76.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 228.115.238.206.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
HK 206.238.115.228:8000 fdfhfcb.top tcp
US 8.8.8.8:53 59.128.231.4.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 105.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp

Files

memory/4072-0-0x0000000010000000-0x00000000100A0000-memory.dmp

memory/4072-1-0x0000000010000000-0x00000000100A0000-memory.dmp

memory/4072-3-0x0000000003680000-0x0000000003681000-memory.dmp

memory/4072-5-0x0000000003710000-0x000000000376F000-memory.dmp

memory/4072-6-0x0000000003800000-0x0000000003989000-memory.dmp

memory/4072-9-0x0000000003800000-0x0000000003989000-memory.dmp

memory/4072-10-0x0000000003800000-0x0000000003989000-memory.dmp

memory/4072-11-0x0000000003800000-0x0000000003989000-memory.dmp

memory/4072-12-0x0000000003800000-0x0000000003989000-memory.dmp

memory/4072-14-0x0000000003800000-0x0000000003989000-memory.dmp

memory/4072-22-0x0000000010000000-0x00000000100A0000-memory.dmp

memory/4072-23-0x0000000003800000-0x0000000003989000-memory.dmp