Malware Analysis Report

2025-03-15 06:39

Sample ID 240531-12acgaga48
Target 81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417
SHA256 81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417
Tags
gh0strat persistence 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

81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417

Threat Level: Known bad

The file 81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417 was found to be: Known bad.

Malicious Activity Summary

gh0strat persistence rat upx

Gh0st RAT payload

Gh0strat

Sets DLL path for service in the registry

Loads dropped DLL

UPX packed file

Executes dropped EXE

Drops file in System32 directory

Drops file in Program Files directory

Enumerates physical storage devices

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-31 22:08

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-31 22:08

Reported

2024-05-31 22:10

Platform

win7-20240508-en

Max time kernel

150s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe"

Signatures

Gh0st RAT payload

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

Gh0strat

rat gh0strat

Sets DLL path for service in the registry

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\svchcst\Parameters\ServiceDll = "C:\\Windows\\system32\\259397854.bat" C:\Users\Admin\AppData\Local\Temp\look2.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

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\259397854.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

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1932 wrote to memory of 1996 N/A C:\Users\Admin\AppData\Local\Temp\81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe C:\Users\Admin\AppData\Local\Temp\look2.exe
PID 1932 wrote to memory of 1996 N/A C:\Users\Admin\AppData\Local\Temp\81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe C:\Users\Admin\AppData\Local\Temp\look2.exe
PID 1932 wrote to memory of 1996 N/A C:\Users\Admin\AppData\Local\Temp\81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe C:\Users\Admin\AppData\Local\Temp\look2.exe
PID 1932 wrote to memory of 1996 N/A C:\Users\Admin\AppData\Local\Temp\81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe C:\Users\Admin\AppData\Local\Temp\look2.exe
PID 1932 wrote to memory of 2764 N/A C:\Users\Admin\AppData\Local\Temp\81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe C:\Users\Admin\AppData\Local\Temp\HD_81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe
PID 1932 wrote to memory of 2764 N/A C:\Users\Admin\AppData\Local\Temp\81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe C:\Users\Admin\AppData\Local\Temp\HD_81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe
PID 1932 wrote to memory of 2764 N/A C:\Users\Admin\AppData\Local\Temp\81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe C:\Users\Admin\AppData\Local\Temp\HD_81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe
PID 1932 wrote to memory of 2764 N/A C:\Users\Admin\AppData\Local\Temp\81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe C:\Users\Admin\AppData\Local\Temp\HD_81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe
PID 2032 wrote to memory of 2768 N/A C:\Windows\SysWOW64\svchost.exe C:\Windows\SysWOW64\svchcst.exe
PID 2032 wrote to memory of 2768 N/A C:\Windows\SysWOW64\svchost.exe C:\Windows\SysWOW64\svchcst.exe
PID 2032 wrote to memory of 2768 N/A C:\Windows\SysWOW64\svchost.exe C:\Windows\SysWOW64\svchcst.exe
PID 2032 wrote to memory of 2768 N/A C:\Windows\SysWOW64\svchost.exe C:\Windows\SysWOW64\svchcst.exe

Processes

C:\Users\Admin\AppData\Local\Temp\81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe

"C:\Users\Admin\AppData\Local\Temp\81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.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_81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe

C:\Users\Admin\AppData\Local\Temp\HD_81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe

C:\Windows\SysWOW64\svchcst.exe

C:\Windows\system32\svchcst.exe "c:\windows\system32\259397854.bat",MainThread

Network

Country Destination Domain Proto
US 8.8.8.8:53 kinh.xmcxmr.com udp

Files

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

MD5 2f3b6f16e33e28ad75f3fdaef2567807
SHA1 85e907340faf1edfc9210db85a04abd43d21b741
SHA256 86492ebf2d6f471a5ee92977318d099b3ea86175b5b7ae522237ae01d07a4857
SHA512 db17e99e2df918cfc9ccbe934adfe73f0777ce1ce9f28b57a4b24ecd821efe2e0b976a634853247b77b16627d2bb3af4ba20306059d1d25ef38ffada7da3e3a4

\Windows\SysWOW64\259397854.bat

MD5 664431a33cd07b2f0dc52d4cb79f0601
SHA1 ad84758b1bc8386209f08b75197ea20afc6120df
SHA256 4f2e18df63c307bceb03e7f913c349382bbadc9c4cf3c320d8fd87c7ac2a6639
SHA512 841e425a9127b4f0cb33b37e99f9857f5ed0c2db230e0e8ff9fa18c356e13ca61726e2bb7ca6d05cc6c8cf58ffe1c66c0603a32bf2a530dc379229659f21e599

C:\Users\Admin\AppData\Local\Temp\HD_81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe

MD5 6d1fe9171538df42e013e6ecf330ec48
SHA1 a85203e77419c484a4434d56f96a0404b73ec588
SHA256 ef342516f4e2c211cd70cef033e558d598229c75e39292b668ae4ea7bf09eafe
SHA512 6603d1a60aa610c3269f9592877ef1a56f4dfe0f2496c017434ae1074fe8c3d0348386316129607d5dc09af1e7ae35f67e12fd72131652dc95e308b5581e1fbd

memory/2764-24-0x0000000000400000-0x00000000008B0000-memory.dmp

memory/1932-23-0x0000000002C20000-0x00000000030D0000-memory.dmp

memory/1932-25-0x0000000002C20000-0x00000000030D0000-memory.dmp

C:\Windows\SysWOW64\svchcst.exe

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-31 22:08

Reported

2024-05-31 22:10

Platform

win10v2004-20240508-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe"

Signatures

Gh0st RAT payload

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

Gh0strat

rat gh0strat

Sets DLL path for service in the registry

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\svchcst\Parameters\ServiceDll = "C:\\Windows\\system32\\240601375.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

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

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\240601375.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

Drops file in Program Files directory

Description Indicator Process Target
File opened for modification C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe C:\Users\Admin\AppData\Local\Temp\81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe N/A

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3552 wrote to memory of 652 N/A C:\Users\Admin\AppData\Local\Temp\81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe C:\Users\Admin\AppData\Local\Temp\look2.exe
PID 3552 wrote to memory of 652 N/A C:\Users\Admin\AppData\Local\Temp\81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe C:\Users\Admin\AppData\Local\Temp\look2.exe
PID 3552 wrote to memory of 652 N/A C:\Users\Admin\AppData\Local\Temp\81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe C:\Users\Admin\AppData\Local\Temp\look2.exe
PID 3552 wrote to memory of 1672 N/A C:\Users\Admin\AppData\Local\Temp\81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe C:\Users\Admin\AppData\Local\Temp\HD_81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe
PID 3552 wrote to memory of 1672 N/A C:\Users\Admin\AppData\Local\Temp\81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe C:\Users\Admin\AppData\Local\Temp\HD_81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe
PID 3552 wrote to memory of 1672 N/A C:\Users\Admin\AppData\Local\Temp\81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe C:\Users\Admin\AppData\Local\Temp\HD_81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe
PID 1608 wrote to memory of 3972 N/A C:\Windows\SysWOW64\svchost.exe C:\Windows\SysWOW64\svchcst.exe
PID 1608 wrote to memory of 3972 N/A C:\Windows\SysWOW64\svchost.exe C:\Windows\SysWOW64\svchcst.exe
PID 1608 wrote to memory of 3972 N/A C:\Windows\SysWOW64\svchost.exe C:\Windows\SysWOW64\svchcst.exe

Processes

C:\Users\Admin\AppData\Local\Temp\81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe

"C:\Users\Admin\AppData\Local\Temp\81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.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_81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe

C:\Users\Admin\AppData\Local\Temp\HD_81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe

C:\Windows\SysWOW64\svchcst.exe

C:\Windows\system32\svchcst.exe "c:\windows\system32\240601375.bat",MainThread

Network

Country Destination Domain Proto
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 145.83.221.88.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 2.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 kinh.xmcxmr.com udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 97.61.62.23.in-addr.arpa udp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 kinh.xmcxmr.com udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa 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 kinh.xmcxmr.com udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa 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 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 8.8.8.8:53 105.83.221.88.in-addr.arpa 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 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 22.236.111.52.in-addr.arpa 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 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
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 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 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 kinh.xmcxmr.com udp

Files

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

MD5 2f3b6f16e33e28ad75f3fdaef2567807
SHA1 85e907340faf1edfc9210db85a04abd43d21b741
SHA256 86492ebf2d6f471a5ee92977318d099b3ea86175b5b7ae522237ae01d07a4857
SHA512 db17e99e2df918cfc9ccbe934adfe73f0777ce1ce9f28b57a4b24ecd821efe2e0b976a634853247b77b16627d2bb3af4ba20306059d1d25ef38ffada7da3e3a4

C:\Windows\SysWOW64\240601375.bat

MD5 664431a33cd07b2f0dc52d4cb79f0601
SHA1 ad84758b1bc8386209f08b75197ea20afc6120df
SHA256 4f2e18df63c307bceb03e7f913c349382bbadc9c4cf3c320d8fd87c7ac2a6639
SHA512 841e425a9127b4f0cb33b37e99f9857f5ed0c2db230e0e8ff9fa18c356e13ca61726e2bb7ca6d05cc6c8cf58ffe1c66c0603a32bf2a530dc379229659f21e599

C:\Users\Admin\AppData\Local\Temp\HD_81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe

MD5 6d1fe9171538df42e013e6ecf330ec48
SHA1 a85203e77419c484a4434d56f96a0404b73ec588
SHA256 ef342516f4e2c211cd70cef033e558d598229c75e39292b668ae4ea7bf09eafe
SHA512 6603d1a60aa610c3269f9592877ef1a56f4dfe0f2496c017434ae1074fe8c3d0348386316129607d5dc09af1e7ae35f67e12fd72131652dc95e308b5581e1fbd

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

MD5 d4f2252548782876d83725cc1e010c0e
SHA1 62ca3323ad6d7b7c0d2645d8ee12569e5a0c518f
SHA256 e24ab6a6cbbce72629a84d23956e11d5cea024f62db4dd200572d63567e2bf56
SHA512 90dd4b5d93300abfcc65849830899c080c61b436f0d9bbf8e0340d3ea86f51ae0facfeb330f92889eb5846f4d4a66fbc33e972229dadcbf44c5b347b33a1bcf6

memory/1672-21-0x0000000000400000-0x00000000008B0000-memory.dmp

memory/1672-32-0x0000000000400000-0x00000000008B0000-memory.dmp

C:\Windows\SysWOW64\svchcst.exe

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