gh0strat | 20e7f0523732f3c42b2791c31193ed261f9f5cbe8a6db772df3de2ba336785b8

General

Target
20e7f0523732f3c42b2791c31193ed261f9f5cbe8a6db772df3de2ba336785b8.exe
Size 4.5MB
Sample240510-aj15csfd7y
SHA256 20e7f0523732f3c42b2791c31193ed261f9f5cbe8a6db772df3de2ba336785b8
MD5 e6d3a0e1f9130a5aca2f4feb0b7c6311
SHA1 3b7706616189e7fbbe06a5fed7aa714ce322fb3f
SHA512 b563dd6db086783d3ff8a6d69fe32371f1a2dd7e06a29e3928ab8fad03a87b96f39c67c647a8a1946b6cec946bf68154b87a21a91d6c9a04360bd81cf3651b62
SSDEEP 49152:SYREXSVMDi3fbXsPNIULkmp1/j6AeXZG7wmpvGF1IP9z5WuHC4O8b8ITDnl27PLn:32SVMD8fbXsPN5kiQaZ56
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

Malware Config

Signatures

Gh0st RAT payload 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023493-9.dat	family_gh0strat

Gh0strat
Gh0st RAT is a remote access tool (RAT) with its source code public and it has been used by multiple Chinese groups.
rat gh0strat

Sets DLL path for service in the registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\svchcst\Parameters\ServiceDll = "C:\\Windows\\system32\\240604375.bat"	look2.exe

Executes dropped EXE 3 IoCs

pid	Process
4152	look2.exe
4872	HD_20e7f0523732f3c42b2791c31193ed261f9f5cbe8a6db772df3de2ba336785b8.exe
5088	svchcst.exe

Loads dropped DLL 3 IoCs

pid	Process
4152	look2.exe
624	svchost.exe
5088	svchcst.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\240604375.bat	look2.exe
File opened for modification	C:\Windows\SysWOW64\ini.ini	look2.exe
File created	C:\Windows\SysWOW64\svchcst.exe	svchost.exe
File opened for modification	C:\Windows\SysWOW64\svchcst.exe	svchost.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe	20e7f0523732f3c42b2791c31193ed261f9f5cbe8a6db772df3de2ba336785b8.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2832	20e7f0523732f3c42b2791c31193ed261f9f5cbe8a6db772df3de2ba336785b8.exe
2832	20e7f0523732f3c42b2791c31193ed261f9f5cbe8a6db772df3de2ba336785b8.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2832	20e7f0523732f3c42b2791c31193ed261f9f5cbe8a6db772df3de2ba336785b8.exe
2832	20e7f0523732f3c42b2791c31193ed261f9f5cbe8a6db772df3de2ba336785b8.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2832 wrote to memory of 4152	2832	20e7f0523732f3c42b2791c31193ed261f9f5cbe8a6db772df3de2ba336785b8.exe	82
PID 2832 wrote to memory of 4152	2832	20e7f0523732f3c42b2791c31193ed261f9f5cbe8a6db772df3de2ba336785b8.exe	82
PID 2832 wrote to memory of 4152	2832	20e7f0523732f3c42b2791c31193ed261f9f5cbe8a6db772df3de2ba336785b8.exe	82
PID 2832 wrote to memory of 4872	2832	20e7f0523732f3c42b2791c31193ed261f9f5cbe8a6db772df3de2ba336785b8.exe	85
PID 2832 wrote to memory of 4872	2832	20e7f0523732f3c42b2791c31193ed261f9f5cbe8a6db772df3de2ba336785b8.exe	85
PID 2832 wrote to memory of 4872	2832	20e7f0523732f3c42b2791c31193ed261f9f5cbe8a6db772df3de2ba336785b8.exe	85
PID 624 wrote to memory of 5088	624	svchost.exe	93
PID 624 wrote to memory of 5088	624	svchost.exe	93
PID 624 wrote to memory of 5088	624	svchost.exe	93

C:\Users\Admin\AppData\Local\Temp\20e7f0523732f3c42b2791c31193ed261f9f5cbe8a6db772df3de2ba336785b8.exe
"C:\Users\Admin\AppData\Local\Temp\20e7f0523732f3c42b2791c31193ed261f9f5cbe8a6db772df3de2ba336785b8.exe"
1⤵
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2832
- C:\Users\Admin\AppData\Local\Temp\look2.exe
  C:\Users\Admin\AppData\Local\Temp\\look2.exe
  2⤵
  - Sets DLL path for service in the registry
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in System32 directory
  PID:4152
- C:\Users\Admin\AppData\Local\Temp\HD_20e7f0523732f3c42b2791c31193ed261f9f5cbe8a6db772df3de2ba336785b8.exe
  C:\Users\Admin\AppData\Local\Temp\HD_20e7f0523732f3c42b2791c31193ed261f9f5cbe8a6db772df3de2ba336785b8.exe
  2⤵
  - Executes dropped EXE
  PID:4872

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "svchcst"
1⤵
PID:1748

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "svchcst"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:624
- C:\Windows\SysWOW64\svchcst.exe
  C:\Windows\system32\svchcst.exe "c:\windows\system32\240604375.bat",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:5088

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

HD_20e7f0523732f3c42b2791c31193ed261f9f5cbe8a6db772df3de2ba336785b8.exe

Path C:\Users\Admin\AppData\Local\Temp\HD_20e7f0523732f3c42b2791c31193ed261f9f5cbe8a6db772df3de2ba336785b8.exe
Size 3.1MB
SHA256 f130b3789962d5c8b59aa250d6f26ad5945928f3905b32bf65aa7bd30348a794
MD5 fb083acd60fe5c3156dc25442be815e3
SHA1 61df59b8f3ebd8b3d29ca3aedc4995e23cacf6d8
SHA512 7147337d2c1006bb15cfa967c9eea6826b63c8d343f866e7454d7368d25019f39e52cf179500810834244c3ca9644d6c0df0b2c3128a9051e9ee6b428fa926f6
SSDEEP 49152:0bXsPNIULkmp1/j6AeXZG7wmpvGF1IP9z5WuHC4O8b8ITDnl27PLhp:0bXsPN5kiQaZ56
MD5 SHA1 SHA512 SSDEEP

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HD_X.dat

Path C:\Users\Admin\AppData\Local\Temp\HD_X.dat
Size 1.4MB
SHA256 9f935f634eecf5eb230ae956505e09af95e84c262e14c810230c8c58d997ef81
MD5 cebff5aaef771ff47c985d5ca89b09bf
SHA1 a4aec5d632cc582f840e6d8ba9d2830b79308ce8
SHA512 23eb6b0ca0adfd9b365a0d12d3e7a4be5f25ceff73cab316d04c72461af9d7f79445e34f2baf2090ca2638fa93d6de7a1940f6227266997779fceaceb36b3c8b
SSDEEP 24576:SYFbkIsaPiXSVnC7Yp9zkNmZG8RRlncyzHd:SYREXSVMDi3d
MD5 SHA1 SHA512 SSDEEP

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look2.exe

Path C:\Users\Admin\AppData\Local\Temp\look2.exe
Size 337KB
SHA256 86492ebf2d6f471a5ee92977318d099b3ea86175b5b7ae522237ae01d07a4857
MD5 2f3b6f16e33e28ad75f3fdaef2567807
SHA1 85e907340faf1edfc9210db85a04abd43d21b741
SHA512 db17e99e2df918cfc9ccbe934adfe73f0777ce1ce9f28b57a4b24ecd821efe2e0b976a634853247b77b16627d2bb3af4ba20306059d1d25ef38ffada7da3e3a4
SSDEEP 6144:8IXwWcHnNmZEvB7csAPRZyfQjCfA3lMXm4Y+5bFnWBFopJOU:8IXwDNmZEvJcscRZzjCI1O5W
MD5 SHA1 SHA512 SSDEEP

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240604375.bat

Path C:\Windows\SysWOW64\240604375.bat
Size 51KB
SHA256 7997fcc5050abf42d3b6b2c5e5a6b5aa292a68d3946c2a5d4465e4d47c6a6aa3
MD5 4c08c00399c734151d58e3ff1891344e
SHA1 fb337ab0046e9abe17a33ba4ea0fc2270dbc9fe9
SHA512 20aab1ab0bfc48c083a0f6e09123dc09434f36cca2147971847d959fd4f7f566e37e3ee9ed7e0df75b8ed47a3bc553a88496d38ee530ca86ccf2d43abc5f35ca
SSDEEP 1536:1WmqoiBMNbMWtYNif/n9S91BF3frnoLmJYH5:1dWubF3n9S91BF3fboaJYH5
MD5 SHA1 SHA512 SSDEEP

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svchcst.exe

Path C:\Windows\SysWOW64\svchcst.exe
Size 60KB
SHA256 6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910
MD5 889b99c52a60dd49227c5e485a016679
SHA1 8fa889e456aa646a4d0a4349977430ce5fa5e2d7
SHA512 08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641
SSDEEP 1536:H9ykYCTdiHQKrFXmw2RQln5IUmDjoX6+:HlMHprF2nRQln5I
MD5 SHA1 SHA512 SSDEEP

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads