Malware Analysis Report

2024-10-24 17:01

Sample ID 240619-gcfy6svend
Target 07871a805c38b5de7ac7d315acced69ab10abcc5f253e9a8791bf4aa335e6ec9
SHA256 07871a805c38b5de7ac7d315acced69ab10abcc5f253e9a8791bf4aa335e6ec9
Tags
gh0strat persistence rat
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

07871a805c38b5de7ac7d315acced69ab10abcc5f253e9a8791bf4aa335e6ec9

Threat Level: Known bad

The file 07871a805c38b5de7ac7d315acced69ab10abcc5f253e9a8791bf4aa335e6ec9 was found to be: Known bad.

Malicious Activity Summary

gh0strat persistence rat

Gh0st RAT payload

Gh0strat

Server Software Component: Terminal Services DLL

Executes dropped EXE

Loads dropped DLL

Drops file in System32 directory

Drops file in Program Files directory

Unsigned PE

Enumerates physical storage devices

Suspicious use of SetWindowsHookEx

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-19 05:39

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-19 05:39

Reported

2024-06-19 05:41

Platform

win7-20240611-en

Max time kernel

150s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\07871a805c38b5de7ac7d315acced69ab10abcc5f253e9a8791bf4aa335e6ec9.exe"

Signatures

Gh0st RAT payload

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

Gh0strat

rat gh0strat

Server Software Component: Terminal Services DLL

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\svchcst\Parameters\ServiceDll = "C:\\Windows\\system32\\259412252.bat" C:\Users\Admin\AppData\Local\Temp\look2.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\259412252.bat C:\Users\Admin\AppData\Local\Temp\look2.exe N/A
File opened for modification C:\Windows\SysWOW64\ini.ini C:\Users\Admin\AppData\Local\Temp\look2.exe N/A
File created C:\Windows\SysWOW64\svchcst.exe C:\Windows\SysWOW64\svchost.exe N/A
File opened for modification C:\Windows\SysWOW64\svchcst.exe C:\Windows\SysWOW64\svchost.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File opened for modification C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe C:\Users\Admin\AppData\Local\Temp\07871a805c38b5de7ac7d315acced69ab10abcc5f253e9a8791bf4aa335e6ec9.exe N/A

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\07871a805c38b5de7ac7d315acced69ab10abcc5f253e9a8791bf4aa335e6ec9.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2104 wrote to memory of 1732 N/A C:\Users\Admin\AppData\Local\Temp\07871a805c38b5de7ac7d315acced69ab10abcc5f253e9a8791bf4aa335e6ec9.exe C:\Users\Admin\AppData\Local\Temp\look2.exe
PID 2104 wrote to memory of 1732 N/A C:\Users\Admin\AppData\Local\Temp\07871a805c38b5de7ac7d315acced69ab10abcc5f253e9a8791bf4aa335e6ec9.exe C:\Users\Admin\AppData\Local\Temp\look2.exe
PID 2104 wrote to memory of 1732 N/A C:\Users\Admin\AppData\Local\Temp\07871a805c38b5de7ac7d315acced69ab10abcc5f253e9a8791bf4aa335e6ec9.exe C:\Users\Admin\AppData\Local\Temp\look2.exe
PID 2104 wrote to memory of 1732 N/A C:\Users\Admin\AppData\Local\Temp\07871a805c38b5de7ac7d315acced69ab10abcc5f253e9a8791bf4aa335e6ec9.exe C:\Users\Admin\AppData\Local\Temp\look2.exe
PID 2104 wrote to memory of 3064 N/A C:\Users\Admin\AppData\Local\Temp\07871a805c38b5de7ac7d315acced69ab10abcc5f253e9a8791bf4aa335e6ec9.exe C:\Users\Admin\AppData\Local\Temp\HD_07871a805c38b5de7ac7d315acced69ab10abcc5f253e9a8791bf4aa335e6ec9.exe
PID 2104 wrote to memory of 3064 N/A C:\Users\Admin\AppData\Local\Temp\07871a805c38b5de7ac7d315acced69ab10abcc5f253e9a8791bf4aa335e6ec9.exe C:\Users\Admin\AppData\Local\Temp\HD_07871a805c38b5de7ac7d315acced69ab10abcc5f253e9a8791bf4aa335e6ec9.exe
PID 2104 wrote to memory of 3064 N/A C:\Users\Admin\AppData\Local\Temp\07871a805c38b5de7ac7d315acced69ab10abcc5f253e9a8791bf4aa335e6ec9.exe C:\Users\Admin\AppData\Local\Temp\HD_07871a805c38b5de7ac7d315acced69ab10abcc5f253e9a8791bf4aa335e6ec9.exe
PID 2104 wrote to memory of 3064 N/A C:\Users\Admin\AppData\Local\Temp\07871a805c38b5de7ac7d315acced69ab10abcc5f253e9a8791bf4aa335e6ec9.exe C:\Users\Admin\AppData\Local\Temp\HD_07871a805c38b5de7ac7d315acced69ab10abcc5f253e9a8791bf4aa335e6ec9.exe
PID 2144 wrote to memory of 3060 N/A C:\Windows\SysWOW64\svchost.exe C:\Windows\SysWOW64\svchcst.exe
PID 2144 wrote to memory of 3060 N/A C:\Windows\SysWOW64\svchost.exe C:\Windows\SysWOW64\svchcst.exe
PID 2144 wrote to memory of 3060 N/A C:\Windows\SysWOW64\svchost.exe C:\Windows\SysWOW64\svchcst.exe
PID 2144 wrote to memory of 3060 N/A C:\Windows\SysWOW64\svchost.exe C:\Windows\SysWOW64\svchcst.exe

Processes

C:\Users\Admin\AppData\Local\Temp\07871a805c38b5de7ac7d315acced69ab10abcc5f253e9a8791bf4aa335e6ec9.exe

"C:\Users\Admin\AppData\Local\Temp\07871a805c38b5de7ac7d315acced69ab10abcc5f253e9a8791bf4aa335e6ec9.exe"

C:\Users\Admin\AppData\Local\Temp\look2.exe

C:\Users\Admin\AppData\Local\Temp\\look2.exe

C:\Windows\SysWOW64\svchost.exe

C:\Windows\SysWOW64\svchost.exe -k "svchcst"

C:\Windows\SysWOW64\svchost.exe

C:\Windows\SysWOW64\svchost.exe -k "svchcst"

C:\Users\Admin\AppData\Local\Temp\HD_07871a805c38b5de7ac7d315acced69ab10abcc5f253e9a8791bf4aa335e6ec9.exe

C:\Users\Admin\AppData\Local\Temp\HD_07871a805c38b5de7ac7d315acced69ab10abcc5f253e9a8791bf4aa335e6ec9.exe

C:\Windows\SysWOW64\svchcst.exe

C:\Windows\system32\svchcst.exe "c:\windows\system32\259412252.bat",MainThread

Network

Country Destination Domain Proto
US 8.8.8.8:53 s1.z100.vip udp
CN 203.135.104.10:7942 s1.z100.vip tcp
US 8.8.8.8:53 kinh.xmcxmr.com udp
CN 114.55.25.226:442 kinh.xmcxmr.com tcp
CN 114.55.25.226:442 kinh.xmcxmr.com tcp
CN 114.55.25.226:442 kinh.xmcxmr.com tcp
CN 203.135.104.10:7942 s1.z100.vip tcp
US 8.8.8.8:53 kinh.xmcxmr.com udp
US 8.8.8.8:53 kinh.xmcxmr.com udp
CN 114.55.25.226:442 kinh.xmcxmr.com tcp
CN 114.55.25.226:442 kinh.xmcxmr.com tcp
CN 203.135.104.10:7942 s1.z100.vip tcp
CN 114.55.25.226:442 kinh.xmcxmr.com tcp
US 8.8.8.8:53 kinh.xmcxmr.com udp
CN 114.55.25.226:442 kinh.xmcxmr.com tcp

Files

\Users\Admin\AppData\Local\Temp\look2.exe

MD5 fb66e1e31fa1e6dfb21a50ccd11e0409
SHA1 6c45a0a115ec896eb14a531a44809b2a22cf8934
SHA256 5ea8c5455f0ebe884ed98834e78ead8b6c68814bbb1723370299fa44b88c0faa
SHA512 58ee149f70438296a67d5ae5cbd6cb9f5b2510a0381466b8f09eec3835be1ce7cad6903ca8fbc9273105132e85952208e78c59f776416c5449b86cc62111154b

\Windows\SysWOW64\259412252.bat

MD5 9d74ffbdaa9b86af2f1cc7a5f0edea16
SHA1 49a7c8d3fb7e3a3f7927669f85eced8959eac795
SHA256 248e65c55908f55ef16ac388bf8c5ae9627404eabada53b033a19c515820b289
SHA512 07b62c4ce73400041f1597d17f49f9a2d4f08ad096de79406a2128ae647d1fec2ebea7298261fff7658bdd6bf5732ca8a1f2e3ab853ede0e018fffbbad4080e1

\Users\Admin\AppData\Local\Temp\HD_07871a805c38b5de7ac7d315acced69ab10abcc5f253e9a8791bf4aa335e6ec9.exe

MD5 2a38203ff2bcd1d49974c0b30a6ef99e
SHA1 523647774e2698424c635e5af8cedec280279cac
SHA256 897770cba1250482dc611fa859aabb20e6184437c7ea2206e2b269c30dd97b85
SHA512 98a941964717aa11b4c29b148c66e3a432f3b33df7861cec9731fe0d0a26d175ab747a4133fe576a3ce5b8b8e8bdb1fc2440d894bfb51ffa0e2343c5df22d6c2

C:\Users\Admin\AppData\Local\Temp\HD_X.dat

MD5 c40a44e4ddc9f0e1c46ec466df869faf
SHA1 5f62fd220bf87365a4f46db6d661846bb512b32c
SHA256 cf28399e6cd03ae79d88201a6c9fec152d44b8a29c7d14a9dc61eceaff0f58e4
SHA512 e0a97acc70faaa5f385e9cd94fe2962a122e7150cbaa31c4963a4d5bd0c2c00ca6ce0c18a3b9d7596d0ee3610a07806f6f0159e9726be6d3b6e2d6275bf69525

\Windows\SysWOW64\svchcst.exe

MD5 51138beea3e2c21ec44d0932c71762a8
SHA1 8939cf35447b22dd2c6e6f443446acc1bf986d58
SHA256 5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124
SHA512 794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-19 05:39

Reported

2024-06-19 05:41

Platform

win10v2004-20240508-en

Max time kernel

150s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\07871a805c38b5de7ac7d315acced69ab10abcc5f253e9a8791bf4aa335e6ec9.exe"

Signatures

Gh0st RAT payload

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

Gh0strat

rat gh0strat

Server Software Component: Terminal Services DLL

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\svchcst\Parameters\ServiceDll = "C:\\Windows\\system32\\240602750.bat" C:\Users\Admin\AppData\Local\Temp\look2.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\look2.exe N/A
N/A N/A C:\Windows\SysWOW64\svchost.exe N/A
N/A N/A C:\Windows\SysWOW64\svchcst.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\svchcst.exe C:\Windows\SysWOW64\svchost.exe N/A
File opened for modification C:\Windows\SysWOW64\svchcst.exe C:\Windows\SysWOW64\svchost.exe N/A
File created C:\Windows\SysWOW64\240602750.bat C:\Users\Admin\AppData\Local\Temp\look2.exe N/A
File opened for modification C:\Windows\SysWOW64\ini.ini C:\Users\Admin\AppData\Local\Temp\look2.exe N/A

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 116 wrote to memory of 4252 N/A C:\Users\Admin\AppData\Local\Temp\07871a805c38b5de7ac7d315acced69ab10abcc5f253e9a8791bf4aa335e6ec9.exe C:\Users\Admin\AppData\Local\Temp\look2.exe
PID 116 wrote to memory of 4252 N/A C:\Users\Admin\AppData\Local\Temp\07871a805c38b5de7ac7d315acced69ab10abcc5f253e9a8791bf4aa335e6ec9.exe C:\Users\Admin\AppData\Local\Temp\look2.exe
PID 116 wrote to memory of 4252 N/A C:\Users\Admin\AppData\Local\Temp\07871a805c38b5de7ac7d315acced69ab10abcc5f253e9a8791bf4aa335e6ec9.exe C:\Users\Admin\AppData\Local\Temp\look2.exe
PID 116 wrote to memory of 1612 N/A C:\Users\Admin\AppData\Local\Temp\07871a805c38b5de7ac7d315acced69ab10abcc5f253e9a8791bf4aa335e6ec9.exe C:\Users\Admin\AppData\Local\Temp\HD_07871a805c38b5de7ac7d315acced69ab10abcc5f253e9a8791bf4aa335e6ec9.exe
PID 116 wrote to memory of 1612 N/A C:\Users\Admin\AppData\Local\Temp\07871a805c38b5de7ac7d315acced69ab10abcc5f253e9a8791bf4aa335e6ec9.exe C:\Users\Admin\AppData\Local\Temp\HD_07871a805c38b5de7ac7d315acced69ab10abcc5f253e9a8791bf4aa335e6ec9.exe
PID 116 wrote to memory of 1612 N/A C:\Users\Admin\AppData\Local\Temp\07871a805c38b5de7ac7d315acced69ab10abcc5f253e9a8791bf4aa335e6ec9.exe C:\Users\Admin\AppData\Local\Temp\HD_07871a805c38b5de7ac7d315acced69ab10abcc5f253e9a8791bf4aa335e6ec9.exe
PID 3360 wrote to memory of 4596 N/A C:\Windows\SysWOW64\svchost.exe C:\Windows\SysWOW64\svchcst.exe
PID 3360 wrote to memory of 4596 N/A C:\Windows\SysWOW64\svchost.exe C:\Windows\SysWOW64\svchcst.exe
PID 3360 wrote to memory of 4596 N/A C:\Windows\SysWOW64\svchost.exe C:\Windows\SysWOW64\svchcst.exe

Processes

C:\Users\Admin\AppData\Local\Temp\07871a805c38b5de7ac7d315acced69ab10abcc5f253e9a8791bf4aa335e6ec9.exe

"C:\Users\Admin\AppData\Local\Temp\07871a805c38b5de7ac7d315acced69ab10abcc5f253e9a8791bf4aa335e6ec9.exe"

C:\Users\Admin\AppData\Local\Temp\look2.exe

C:\Users\Admin\AppData\Local\Temp\\look2.exe

C:\Windows\SysWOW64\svchost.exe

C:\Windows\SysWOW64\svchost.exe -k "svchcst"

C:\Windows\SysWOW64\svchost.exe

C:\Windows\SysWOW64\svchost.exe -k "svchcst"

C:\Users\Admin\AppData\Local\Temp\HD_07871a805c38b5de7ac7d315acced69ab10abcc5f253e9a8791bf4aa335e6ec9.exe

C:\Users\Admin\AppData\Local\Temp\HD_07871a805c38b5de7ac7d315acced69ab10abcc5f253e9a8791bf4aa335e6ec9.exe

C:\Windows\SysWOW64\svchcst.exe

C:\Windows\system32\svchcst.exe "c:\windows\system32\240602750.bat",MainThread

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 s1.z100.vip udp
US 8.8.8.8:53 kinh.xmcxmr.com udp
US 8.8.8.8:53 kinh.xmcxmr.com udp
US 8.8.8.8:53 kinh.xmcxmr.com udp
US 8.8.8.8:53 s1.z100.vip udp
US 8.8.8.8:53 kinh.xmcxmr.com udp
US 8.8.8.8:53 kinh.xmcxmr.com udp
US 8.8.8.8:53 s1.z100.vip udp
US 8.8.8.8:53 kinh.xmcxmr.com udp
US 8.8.8.8:53 kinh.xmcxmr.com udp
US 8.8.8.8:53 kinh.xmcxmr.com udp
US 8.8.8.8:53 s1.z100.vip udp
US 8.8.8.8:53 kinh.xmcxmr.com udp
US 8.8.8.8:53 kinh.xmcxmr.com udp
US 8.8.8.8:53 kinh.xmcxmr.com udp

Files

C:\Users\Admin\AppData\Local\Temp\look2.exe

MD5 fb66e1e31fa1e6dfb21a50ccd11e0409
SHA1 6c45a0a115ec896eb14a531a44809b2a22cf8934
SHA256 5ea8c5455f0ebe884ed98834e78ead8b6c68814bbb1723370299fa44b88c0faa
SHA512 58ee149f70438296a67d5ae5cbd6cb9f5b2510a0381466b8f09eec3835be1ce7cad6903ca8fbc9273105132e85952208e78c59f776416c5449b86cc62111154b

C:\Windows\SysWOW64\240602750.bat

MD5 9d74ffbdaa9b86af2f1cc7a5f0edea16
SHA1 49a7c8d3fb7e3a3f7927669f85eced8959eac795
SHA256 248e65c55908f55ef16ac388bf8c5ae9627404eabada53b033a19c515820b289
SHA512 07b62c4ce73400041f1597d17f49f9a2d4f08ad096de79406a2128ae647d1fec2ebea7298261fff7658bdd6bf5732ca8a1f2e3ab853ede0e018fffbbad4080e1

C:\Users\Admin\AppData\Local\Temp\HD_07871a805c38b5de7ac7d315acced69ab10abcc5f253e9a8791bf4aa335e6ec9.exe

MD5 2a38203ff2bcd1d49974c0b30a6ef99e
SHA1 523647774e2698424c635e5af8cedec280279cac
SHA256 897770cba1250482dc611fa859aabb20e6184437c7ea2206e2b269c30dd97b85
SHA512 98a941964717aa11b4c29b148c66e3a432f3b33df7861cec9731fe0d0a26d175ab747a4133fe576a3ce5b8b8e8bdb1fc2440d894bfb51ffa0e2343c5df22d6c2

C:\Windows\SysWOW64\svchcst.exe

MD5 889b99c52a60dd49227c5e485a016679
SHA1 8fa889e456aa646a4d0a4349977430ce5fa5e2d7
SHA256 6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910
SHA512 08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641