gh0strat | cdafa75d27565e5acba5e8d2529b117c2c727f388b94ea4ac93e24b817fa9dd7

General

Target

cdafa75d27565e5acba5e8d2529b117c2c727f388b94ea4ac93e24b817fa9dd7.exe
Size

1.5MB
MD5

3252d8dd08aefff371c6c41e744304ff
SHA1

1245b706b8da09e6ce97dc2d187e596ec5bf6088
SHA256

cdafa75d27565e5acba5e8d2529b117c2c727f388b94ea4ac93e24b817fa9dd7
SHA512

a1629205eb087f0a237b2c12dc4b026473baa29ce70f4ca518143436bcc978834bb6f9e8268ccd3ee515ca8239c3103dbcf3868798471cdbe7e5aecb63a0be4e
SSDEEP

24576:KYFbkIsaPiXSVnC7Yp9zjNmZG8RRl9/yzHd2jsSe:KYREXSVMKi3BsSe

Score

10^/10

Malware Config

Signatures

Gh0st RAT payload 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023c97-5.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
Gh0strat family
gh0strat

Server Software Component: Terminal Services DLL 1 TTPs 1 IoCs

persistence

Terminal Services DLL

T1505.005

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\svchcst\Parameters\ServiceDll = "C:\\Windows\\system32\\240621968.bat"	look2.exe

Executes dropped EXE 2 IoCs

pid	Process
3120	look2.exe
976	svchcst.exe

Loads dropped DLL 3 IoCs

pid	Process
3120	look2.exe
4464	svchost.exe
976	svchcst.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\240621968.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)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe	cdafa75d27565e5acba5e8d2529b117c2c727f388b94ea4ac93e24b817fa9dd7.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchcst.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cdafa75d27565e5acba5e8d2529b117c2c727f388b94ea4ac93e24b817fa9dd7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	look2.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1400	cdafa75d27565e5acba5e8d2529b117c2c727f388b94ea4ac93e24b817fa9dd7.exe
1400	cdafa75d27565e5acba5e8d2529b117c2c727f388b94ea4ac93e24b817fa9dd7.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1400 wrote to memory of 3120	1400	cdafa75d27565e5acba5e8d2529b117c2c727f388b94ea4ac93e24b817fa9dd7.exe	82
PID 1400 wrote to memory of 3120	1400	cdafa75d27565e5acba5e8d2529b117c2c727f388b94ea4ac93e24b817fa9dd7.exe	82
PID 1400 wrote to memory of 3120	1400	cdafa75d27565e5acba5e8d2529b117c2c727f388b94ea4ac93e24b817fa9dd7.exe	82
PID 4464 wrote to memory of 976	4464	svchost.exe	87
PID 4464 wrote to memory of 976	4464	svchost.exe	87
PID 4464 wrote to memory of 976	4464	svchost.exe	87

C:\Users\Admin\AppData\Local\Temp\cdafa75d27565e5acba5e8d2529b117c2c727f388b94ea4ac93e24b817fa9dd7.exe
"C:\Users\Admin\AppData\Local\Temp\cdafa75d27565e5acba5e8d2529b117c2c727f388b94ea4ac93e24b817fa9dd7.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1400
- C:\Users\Admin\AppData\Local\Temp\look2.exe
  C:\Users\Admin\AppData\Local\Temp\\look2.exe
  2⤵
  - Server Software Component: Terminal Services DLL
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  PID:3120

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "svchcst"
1⤵
PID:4500

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "svchcst"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4464
- C:\Windows\SysWOW64\svchcst.exe
  C:\Windows\system32\svchcst.exe "c:\windows\system32\240621968.bat",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:976

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Server Software Component

1

T1505

Terminal Services DLL

1

T1505.005

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\RCX9A5B.tmp

Filesize
1.5MB

MD5
2349408d395f207133d619b84e827b49

SHA1
cfe6149b0e24992eb233ba8503331977f9ef3d34

SHA256
b45122b6baaffea05cd66c143b7437ea619c4812d3fc8e071dbe8b4d9a46d3ba

SHA512
bb5df6dabefd291b07bcd9a417695a6c81224ecb56ba0b82b9381821dfc76ac0830156e778b90e7c73dac130bca49296a6fc9c8569e8cca2ca7bc63294cd44e1

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

Filesize
337KB

MD5
fb66e1e31fa1e6dfb21a50ccd11e0409

SHA1
6c45a0a115ec896eb14a531a44809b2a22cf8934

SHA256
5ea8c5455f0ebe884ed98834e78ead8b6c68814bbb1723370299fa44b88c0faa

SHA512
58ee149f70438296a67d5ae5cbd6cb9f5b2510a0381466b8f09eec3835be1ce7cad6903ca8fbc9273105132e85952208e78c59f776416c5449b86cc62111154b

Download Submit
C:\Windows\SysWOW64\240621968.bat

Filesize
51KB

MD5
b524dd50cd9247791d1ec19081f1c3ee

SHA1
3249fbf2f787bca9a93c2f57ea450708c10139cc

SHA256
c08ff3d6297cd75b8a794fae61db093ad5f34312a402556f500a2f4a6777b30f

SHA512
58ce814a38ea4a648e9871f814976459175a9fd066fd76fd8ba802a7dbf6d72701871a465268613772753add96129c3a50eba96e406c89d4c8ed399a572fb442

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

Filesize
60KB

MD5
889b99c52a60dd49227c5e485a016679

SHA1
8fa889e456aa646a4d0a4349977430ce5fa5e2d7

SHA256
6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

SHA512
08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

Download Submit

Analysis

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