gh0strat | 3f5d5449ade4726c3431baa52cf36dbf4b7101f112eac429f3b436499edb52ab

General

Target

3f5d5449ade4726c3431baa52cf36dbf4b7101f112eac429f3b436499edb52ab.exe
Size

1.5MB
MD5

bd28eabf5a15f7b2eeba9c21231dbc7e
SHA1

9f1f44f7b27462041af0bfc0dbce9abc1ed3c191
SHA256

3f5d5449ade4726c3431baa52cf36dbf4b7101f112eac429f3b436499edb52ab
SHA512

4f300720a62e2b575f0d7d1ab78730409f3b6c429029876c57dd7ada9e92f0291c40dc1450f6da17549f3673c15ad9650030d25de67a4f4a5420f7e31e1c10b8
SSDEEP

24576:IYFbkIsaPiXSVnC7Yp9zkNmZG8RRlnsyzl+So:IYREXSVMDi3cD

Score

10^/10

gh0strat persistence rat

Malware Config

Signatures

Gh0st RAT payload 1 IoCs

Processes:

resource	yara_rule
\Windows\SysWOW64\259394765.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\\259394765.bat"	look2.exe

Executes dropped EXE 2 IoCs

Processes:

look2.exesvchcst.exe

pid process

320 look2.exe
2072 svchcst.exe
Loads dropped DLL 5 IoCs

Processes:

3f5d5449ade4726c3431baa52cf36dbf4b7101f112eac429f3b436499edb52ab.exelook2.exesvchost.exesvchcst.exe

pid process

1044 3f5d5449ade4726c3431baa52cf36dbf4b7101f112eac429f3b436499edb52ab.exe
320 look2.exe
2064 svchost.exe
2064 svchost.exe
2072 svchcst.exe

pid	process
320	look2.exe
2072	svchcst.exe

Drops file in System32 directory 4 IoCs

Processes:

look2.exesvchost.exe

description	ioc	process
File created	C:\Windows\SysWOW64\259394765.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 use of SetWindowsHookEx 2 IoCs

Processes:

3f5d5449ade4726c3431baa52cf36dbf4b7101f112eac429f3b436499edb52ab.exe

pid	process
1044	3f5d5449ade4726c3431baa52cf36dbf4b7101f112eac429f3b436499edb52ab.exe
1044	3f5d5449ade4726c3431baa52cf36dbf4b7101f112eac429f3b436499edb52ab.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

3f5d5449ade4726c3431baa52cf36dbf4b7101f112eac429f3b436499edb52ab.exesvchost.exe

description	pid	process	target process
PID 1044 wrote to memory of 320	1044	3f5d5449ade4726c3431baa52cf36dbf4b7101f112eac429f3b436499edb52ab.exe	look2.exe
PID 1044 wrote to memory of 320	1044	3f5d5449ade4726c3431baa52cf36dbf4b7101f112eac429f3b436499edb52ab.exe	look2.exe
PID 1044 wrote to memory of 320	1044	3f5d5449ade4726c3431baa52cf36dbf4b7101f112eac429f3b436499edb52ab.exe	look2.exe
PID 1044 wrote to memory of 320	1044	3f5d5449ade4726c3431baa52cf36dbf4b7101f112eac429f3b436499edb52ab.exe	look2.exe
PID 2064 wrote to memory of 2072	2064	svchost.exe	svchcst.exe
PID 2064 wrote to memory of 2072	2064	svchost.exe	svchcst.exe
PID 2064 wrote to memory of 2072	2064	svchost.exe	svchcst.exe
PID 2064 wrote to memory of 2072	2064	svchost.exe	svchcst.exe

C:\Users\Admin\AppData\Local\Temp\3f5d5449ade4726c3431baa52cf36dbf4b7101f112eac429f3b436499edb52ab.exe
"C:\Users\Admin\AppData\Local\Temp\3f5d5449ade4726c3431baa52cf36dbf4b7101f112eac429f3b436499edb52ab.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1044
- 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:320

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "svchcst"
1⤵
PID:2740

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:2064
- C:\Windows\SysWOW64\svchcst.exe
  C:\Windows\system32\svchcst.exe "c:\windows\system32\259394765.bat",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:2072

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

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

Filesize
337KB

MD5
2f3b6f16e33e28ad75f3fdaef2567807

SHA1
85e907340faf1edfc9210db85a04abd43d21b741

SHA256
86492ebf2d6f471a5ee92977318d099b3ea86175b5b7ae522237ae01d07a4857

SHA512
db17e99e2df918cfc9ccbe934adfe73f0777ce1ce9f28b57a4b24ecd821efe2e0b976a634853247b77b16627d2bb3af4ba20306059d1d25ef38ffada7da3e3a4

Download Submit
\Windows\SysWOW64\259394765.bat

Filesize
51KB

MD5
526bdc6adc10eed335b785da59fa01f9

SHA1
55e47e47ebdd2475e65b65ddc433361112ac77fb

SHA256
574363624bc1e74723ce3a390df8f601c21874baea2cf5f5829e3b23849a188f

SHA512
00524029c2c97ca2793c5cb256cf4108f48b3a4f5239c8f8660c3122e557ff6c22e4fcf412dba738880fefe47a937ddbb1a8710255a47cdde7b71af3833c5d26

Download Submit
\Windows\SysWOW64\svchcst.exe

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads