gh0strat | ca79b9a47c0183742eb0b5a383dcbc8d6fe24bfc89c22bbfc8e59dff8ebbf236

General

Target

ca79b9a47c0183742eb0b5a383dcbc8d6fe24bfc89c22bbfc8e59dff8ebbf236.exe
Size

1.4MB
MD5

985be78296f57a73acba27d9ef8fb022
SHA1

71e77dd0470fd7cfec254a6fa20e275fd058c3c9
SHA256

ca79b9a47c0183742eb0b5a383dcbc8d6fe24bfc89c22bbfc8e59dff8ebbf236
SHA512

9ddfed918a1133011189c9103e94ab43be2c385ec19471c51b6b3cc9f5e47fe5986fd9f10b2ef96f35baa04fd31b821fc00d8ef7475ec2950d4b7dc571ab4ecb
SSDEEP

24576:9YFbkIsaPiXSVnC7Yp9zkNmZG8RRlnVyzH5EY:9YREXSVMDi3cEY

Score

10^/10

gh0strat persistence rat

Malware Config

Signatures

Gh0st RAT payload 1 IoCs

Processes:

resource	yara_rule
C:\Windows\SysWOW64\240642515.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\\240642515.bat"	look2.exe

Executes dropped EXE 2 IoCs

Processes:

look2.exesvchcst.exe

pid process

3908 look2.exe
3104 svchcst.exe
Loads dropped DLL 3 IoCs

Processes:

look2.exesvchost.exesvchcst.exe

pid process

3908 look2.exe
4724 svchost.exe
3104 svchcst.exe

pid	process
3908	look2.exe
3104	svchcst.exe

pid	process
3908	look2.exe
4724	svchost.exe
3104	svchcst.exe

Drops file in System32 directory 4 IoCs

Processes:

look2.exesvchost.exe

description	ioc	process
File created	C:\Windows\SysWOW64\240642515.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

Processes:

ca79b9a47c0183742eb0b5a383dcbc8d6fe24bfc89c22bbfc8e59dff8ebbf236.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe	ca79b9a47c0183742eb0b5a383dcbc8d6fe24bfc89c22bbfc8e59dff8ebbf236.exe

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

System Information Discovery
T1082

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

ca79b9a47c0183742eb0b5a383dcbc8d6fe24bfc89c22bbfc8e59dff8ebbf236.exe

pid	process
1832	ca79b9a47c0183742eb0b5a383dcbc8d6fe24bfc89c22bbfc8e59dff8ebbf236.exe
1832	ca79b9a47c0183742eb0b5a383dcbc8d6fe24bfc89c22bbfc8e59dff8ebbf236.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

ca79b9a47c0183742eb0b5a383dcbc8d6fe24bfc89c22bbfc8e59dff8ebbf236.exesvchost.exe

description	pid	process	target process
PID 1832 wrote to memory of 3908	1832	ca79b9a47c0183742eb0b5a383dcbc8d6fe24bfc89c22bbfc8e59dff8ebbf236.exe	look2.exe
PID 1832 wrote to memory of 3908	1832	ca79b9a47c0183742eb0b5a383dcbc8d6fe24bfc89c22bbfc8e59dff8ebbf236.exe	look2.exe
PID 1832 wrote to memory of 3908	1832	ca79b9a47c0183742eb0b5a383dcbc8d6fe24bfc89c22bbfc8e59dff8ebbf236.exe	look2.exe
PID 4724 wrote to memory of 3104	4724	svchost.exe	svchcst.exe
PID 4724 wrote to memory of 3104	4724	svchost.exe	svchcst.exe
PID 4724 wrote to memory of 3104	4724	svchost.exe	svchcst.exe

C:\Users\Admin\AppData\Local\Temp\ca79b9a47c0183742eb0b5a383dcbc8d6fe24bfc89c22bbfc8e59dff8ebbf236.exe
"C:\Users\Admin\AppData\Local\Temp\ca79b9a47c0183742eb0b5a383dcbc8d6fe24bfc89c22bbfc8e59dff8ebbf236.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1832

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:3908

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "svchcst"
1⤵
PID:4112

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:4724

C:\Windows\SysWOW64\svchcst.exe
C:\Windows\system32\svchcst.exe "c:\windows\system32\240642515.bat",MainThread
2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:3104

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 --field-trial-handle=1284,i,1697479186275492802,18058102846092193784,262144 --variations-seed-version --mojo-platform-channel-handle=4404 /prefetch:8
1⤵
PID:1864

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\RCXEA50.tmp
Filesize
1.4MB

MD5
234b70e01a385e59cfe7cb8f3ed3de3e

SHA1
56548636295de0bf3dd6fcc6a2815f74ebd04887

SHA256
a7c9e426367f1d8d6c8866dd15b91c6a595c3a363a768768a9f022eca2cbf4c8

SHA512
432a126de03b0bb9f024bdea8cfa2ffaa4021204ac23109c428b0a0ea948d615ed3ce84b3b9ce5e7224733d1d86c7664e5bc97fc059d8e166bc1ffcfd44c19ee

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\240642515.bat
Filesize
51KB

MD5
ff0abc82a280e7c2e5dee06b94f139cb

SHA1
5ed77a7611335ed4142c8b310c009fd596b468e5

SHA256
af45ccf5270aeb4a39c36653e261d24ea88961a81b7d005283efcb1c9472e429

SHA512
142b46c87eeee9b1c2a09d1ce2ee404a84bfe42ef3f3bf83076b1ccc4aab97c65dc95b66f98d906dab6c931cd75351d48088c6a179e3b155624b7c25153b39c0

Download Submit
C:\Windows\SysWOW64\svchcst.exe
Filesize
60KB

MD5
889b99c52a60dd49227c5e485a016679

SHA1
8fa889e456aa646a4d0a4349977430ce5fa5e2d7

SHA256
6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

SHA512
08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads