gh0strat | 81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417

General

Target

81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe
Size

3.3MB
MD5

3bf13f5bd6f54dde77d2bb542770a93e
SHA1

38d728a8688fe462f615f6346556d322d5e50914
SHA256

81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417
SHA512

967488c86ff0adcac30c57f4a5890bbd24ab416586e78b8b4a2a3e5a1a8c0a2313857d05b4883b17bdd6a5a662268478abb6cce438dc1754c232085df40d5ebc
SSDEEP

49152:wYREXSVMDi3cNkIJ3NmPxJu311YwLeI6C2aAxbk7R8E:B2SVMD8cNkInmyl1BLedC2aA9Z

Score

10^/10

gh0strat persistence rat upx

Malware Config

Signatures

Gh0st RAT payload 1 IoCs

Processes:

resource	yara_rule
C:\Windows\SysWOW64\240659906.bat	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

Processes:

look2.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\svchcst\Parameters\ServiceDll = "C:\\Windows\\system32\\240659906.bat"	look2.exe

Executes dropped EXE 3 IoCs

Processes:

look2.exeHD_81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exesvchcst.exe

pid process

4016 look2.exe
2472 HD_81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe
3476 svchcst.exe
Loads dropped DLL 3 IoCs

Processes:

look2.exesvchost.exesvchcst.exe

pid process

4016 look2.exe
3220 svchost.exe
3476 svchcst.exe

pid	process
4016	look2.exe
2472	HD_81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe
3476	svchcst.exe

pid	process
4016	look2.exe
3220	svchost.exe
3476	svchcst.exe

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\HD_81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe	upx
behavioral2/memory/2472-15-0x0000000000400000-0x00000000008B0000-memory.dmp	upx
behavioral2/memory/2472-22-0x0000000000400000-0x00000000008B0000-memory.dmp	upx

Drops file in System32 directory 4 IoCs

Processes:

look2.exesvchost.exe

description	ioc	process
File created	C:\Windows\SysWOW64\240659906.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

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe

pid	process
3304	81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe
3304	81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe

pid	process
3304	81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe
3304	81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exesvchost.exe

description	pid	process	target process
PID 3304 wrote to memory of 4016	3304	81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe	look2.exe
PID 3304 wrote to memory of 4016	3304	81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe	look2.exe
PID 3304 wrote to memory of 4016	3304	81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe	look2.exe
PID 3304 wrote to memory of 2472	3304	81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe	HD_81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe
PID 3304 wrote to memory of 2472	3304	81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe	HD_81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe
PID 3304 wrote to memory of 2472	3304	81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe	HD_81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe
PID 3220 wrote to memory of 3476	3220	svchost.exe	svchcst.exe
PID 3220 wrote to memory of 3476	3220	svchost.exe	svchcst.exe
PID 3220 wrote to memory of 3476	3220	svchost.exe	svchcst.exe

C:\Users\Admin\AppData\Local\Temp\81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe
"C:\Users\Admin\AppData\Local\Temp\81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3304

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:4016

C:\Users\Admin\AppData\Local\Temp\HD_81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe
C:\Users\Admin\AppData\Local\Temp\HD_81a96acc7d8c6f6f5e4173ab0498d33f8c0d75448f63748833fb24f6637b6417.exe
2⤵
- Executes dropped EXE
PID:2472

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "svchcst"
1⤵
PID:3156

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:3220

C:\Windows\SysWOW64\svchcst.exe
C:\Windows\system32\svchcst.exe "c:\windows\system32\240659906.bat",MainThread
2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:3476

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4136 --field-trial-handle=3192,i,2785050981002401924,4037047756083432660,262144 --variations-seed-version /prefetch:8
1⤵
PID:4524

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

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

Filesize
1.8MB

MD5
6d1fe9171538df42e013e6ecf330ec48

SHA1
a85203e77419c484a4434d56f96a0404b73ec588

SHA256
ef342516f4e2c211cd70cef033e558d598229c75e39292b668ae4ea7bf09eafe

SHA512
6603d1a60aa610c3269f9592877ef1a56f4dfe0f2496c017434ae1074fe8c3d0348386316129607d5dc09af1e7ae35f67e12fd72131652dc95e308b5581e1fbd

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

Filesize
337KB

MD5
2f3b6f16e33e28ad75f3fdaef2567807

SHA1
85e907340faf1edfc9210db85a04abd43d21b741

SHA256
86492ebf2d6f471a5ee92977318d099b3ea86175b5b7ae522237ae01d07a4857

SHA512
db17e99e2df918cfc9ccbe934adfe73f0777ce1ce9f28b57a4b24ecd821efe2e0b976a634853247b77b16627d2bb3af4ba20306059d1d25ef38ffada7da3e3a4

Download Submit
C:\Windows\SysWOW64\240659906.bat

Filesize
51KB

MD5
d72a50e633fc2d0dab986a1ba08fea53

SHA1
0b1c025661a74f44b26ec989386eaf4fa572e494

SHA256
96c5369afc304c0f040604e681b4d796f672293f71ee95a22a8ecbb2496987d5

SHA512
167bc25012fade9f0d3d9b9c2c143b9ceaa8bd7684447fd58e93aa916d107064b20159a5e6696b30a916a5a58295d7cf6b12a96f58864d8cf3be039d9edaffc0

Download Submit
C:\Windows\SysWOW64\svchcst.exe

Filesize
60KB

MD5
889b99c52a60dd49227c5e485a016679

SHA1
8fa889e456aa646a4d0a4349977430ce5fa5e2d7

SHA256
6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

SHA512
08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

Download Submit
memory/2472-15-0x0000000000400000-0x00000000008B0000-memory.dmp

Filesize
4.7MB

Download
memory/2472-22-0x0000000000400000-0x00000000008B0000-memory.dmp

Filesize
4.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads