gh0strat | f92dca5c589b18788810580ea5eea3df92bd0ba9784ea3f70092f29415395f1b

General

Target

f92dca5c589b18788810580ea5eea3df92bd0ba9784ea3f70092f29415395f1b.exe
Size

4.8MB
MD5

e2a2e613a4090da64092041bfa7c81a4
SHA1

2219e4cac81a3634aa875871dcb22bf54ab0c123
SHA256

f92dca5c589b18788810580ea5eea3df92bd0ba9784ea3f70092f29415395f1b
SHA512

e31299e0c90529c4e5ec053ff3c42f5caf29206e6e37f919b16ef489e22bb876e5d6a01e6dbaa38c9069de700610e7b46e17fef97e95fa3381ac36b2a12f03d3
SSDEEP

49152:kYREXSVMDi3F+VbXsPNIULkmp1/j6AeXZG7wmpvGF1IP9z5WuHC4O8b8ITDnl27z:d2SVMD8F+VbXsPN5kiQaZ56

Score

10^/10

Malware Config

Signatures

Gh0st RAT payload 1 IoCs

resource	yara_rule
behavioral1/files/0x000900000001707f-6.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\\259430333.bat"	look2.exe

Executes dropped EXE 3 IoCs

pid	Process
1888	look2.exe
2540	HD_f92dca5c589b18788810580ea5eea3df92bd0ba9784ea3f70092f29415395f1b.exe
2776	svchcst.exe

Loads dropped DLL 6 IoCs

pid	Process
1728	f92dca5c589b18788810580ea5eea3df92bd0ba9784ea3f70092f29415395f1b.exe
1888	look2.exe
2452	svchost.exe
1728	f92dca5c589b18788810580ea5eea3df92bd0ba9784ea3f70092f29415395f1b.exe
2452	svchost.exe
2776	svchcst.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\259430333.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\Reader 9.0\Reader\AcroRd32.exe	f92dca5c589b18788810580ea5eea3df92bd0ba9784ea3f70092f29415395f1b.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 5 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	f92dca5c589b18788810580ea5eea3df92bd0ba9784ea3f70092f29415395f1b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	look2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	HD_f92dca5c589b18788810580ea5eea3df92bd0ba9784ea3f70092f29415395f1b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchcst.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1728	f92dca5c589b18788810580ea5eea3df92bd0ba9784ea3f70092f29415395f1b.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1728	f92dca5c589b18788810580ea5eea3df92bd0ba9784ea3f70092f29415395f1b.exe
1728	f92dca5c589b18788810580ea5eea3df92bd0ba9784ea3f70092f29415395f1b.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1728 wrote to memory of 1888	1728	f92dca5c589b18788810580ea5eea3df92bd0ba9784ea3f70092f29415395f1b.exe	30
PID 1728 wrote to memory of 1888	1728	f92dca5c589b18788810580ea5eea3df92bd0ba9784ea3f70092f29415395f1b.exe	30
PID 1728 wrote to memory of 1888	1728	f92dca5c589b18788810580ea5eea3df92bd0ba9784ea3f70092f29415395f1b.exe	30
PID 1728 wrote to memory of 1888	1728	f92dca5c589b18788810580ea5eea3df92bd0ba9784ea3f70092f29415395f1b.exe	30
PID 1728 wrote to memory of 2540	1728	f92dca5c589b18788810580ea5eea3df92bd0ba9784ea3f70092f29415395f1b.exe	33
PID 1728 wrote to memory of 2540	1728	f92dca5c589b18788810580ea5eea3df92bd0ba9784ea3f70092f29415395f1b.exe	33
PID 1728 wrote to memory of 2540	1728	f92dca5c589b18788810580ea5eea3df92bd0ba9784ea3f70092f29415395f1b.exe	33
PID 1728 wrote to memory of 2540	1728	f92dca5c589b18788810580ea5eea3df92bd0ba9784ea3f70092f29415395f1b.exe	33
PID 2452 wrote to memory of 2776	2452	svchost.exe	34
PID 2452 wrote to memory of 2776	2452	svchost.exe	34
PID 2452 wrote to memory of 2776	2452	svchost.exe	34
PID 2452 wrote to memory of 2776	2452	svchost.exe	34

C:\Users\Admin\AppData\Local\Temp\f92dca5c589b18788810580ea5eea3df92bd0ba9784ea3f70092f29415395f1b.exe
"C:\Users\Admin\AppData\Local\Temp\f92dca5c589b18788810580ea5eea3df92bd0ba9784ea3f70092f29415395f1b.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1728
- 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:1888
- C:\Users\Admin\AppData\Local\Temp\HD_f92dca5c589b18788810580ea5eea3df92bd0ba9784ea3f70092f29415395f1b.exe
  C:\Users\Admin\AppData\Local\Temp\HD_f92dca5c589b18788810580ea5eea3df92bd0ba9784ea3f70092f29415395f1b.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2540

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "svchcst"
1⤵
PID:2448

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:2452
- C:\Windows\SysWOW64\svchcst.exe
  C:\Windows\system32\svchcst.exe "c:\windows\system32\259430333.bat",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:2776

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

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Downloads

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

Filesize
1.8MB

MD5
18dc71df20ee505b001db16fc1739ab1

SHA1
867113ebdb3a30067e044ac1a0ce304575ba8743

SHA256
5b00eb5479f91be20be3549a461c68659d1cc1a5e9863e9a743d56ac67f79e5e

SHA512
cadab662c376de4eb85e5a4a4ad35154a8b120a3d596500aa002991bae4e5984e51584c1f3740675bf6568447f6c26a9b8737d792b0e1795ea4f89a0929b9497

Download Submit
\Users\Admin\AppData\Local\Temp\HD_f92dca5c589b18788810580ea5eea3df92bd0ba9784ea3f70092f29415395f1b.exe

Filesize
3.1MB

MD5
fb083acd60fe5c3156dc25442be815e3

SHA1
61df59b8f3ebd8b3d29ca3aedc4995e23cacf6d8

SHA256
f130b3789962d5c8b59aa250d6f26ad5945928f3905b32bf65aa7bd30348a794

SHA512
7147337d2c1006bb15cfa967c9eea6826b63c8d343f866e7454d7368d25019f39e52cf179500810834244c3ca9644d6c0df0b2c3128a9051e9ee6b428fa926f6

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

Filesize
337KB

MD5
2f3b6f16e33e28ad75f3fdaef2567807

SHA1
85e907340faf1edfc9210db85a04abd43d21b741

SHA256
86492ebf2d6f471a5ee92977318d099b3ea86175b5b7ae522237ae01d07a4857

SHA512
db17e99e2df918cfc9ccbe934adfe73f0777ce1ce9f28b57a4b24ecd821efe2e0b976a634853247b77b16627d2bb3af4ba20306059d1d25ef38ffada7da3e3a4

Download Submit
\Windows\SysWOW64\259430333.bat

Filesize
51KB

MD5
ea31179194255d828e3a43be5999e87d

SHA1
411395f8b774f4731a38afa548f5f3fdd5700dfd

SHA256
eff5d8353fbc8933e3a8d86ebf3b9ba0c3c7d9636571e391a51233c103e80c8d

SHA512
5d1a7ec0c4599988a88f02a8966d2a7a161723443cdc991f4d6e67bef5067a4cfa80dd25947cdd639c04ec8faf9c0e799dfae8713384fa469bbfd96a6c1fcea4

Download Submit
\Windows\SysWOW64\svchcst.exe

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit

Analysis

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