gh0strat | 81b1c3abdbe2b6da35c9bd3058d8ac98f3a915fd813a60181f1003d8e14598ad

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20231020-en
resource tags

arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
submitted
26-11-2023 13:58

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General

Target

81b1c3abdbe2b6da35c9bd3058d8ac98f3a915fd813a60181f1003d8e14598ad.exe
Size

4.6MB
MD5

dda8c50b960ad5e95d9bb01e0db5b183
SHA1

d9b77da9accf6fda36a922c3094740f2278403a3
SHA256

81b1c3abdbe2b6da35c9bd3058d8ac98f3a915fd813a60181f1003d8e14598ad
SHA512

f393cbaa642e0464313bead0136ec6f3a76b15404cea5e6ec18a2f8f30419cd8b12546d786bfe2dfdd5c5ee47269f2bfc8b2edeeb85d4432ddbbc9072c4ca40a
SSDEEP

49152:0YREXSVMDi3TFbXsPNIULkmp1/j6AeXZG7wmpvGF1IP9z5WuHC4O8b8ITDnl27PL:t2SVMD8xbXsPN5kiQaZ56

Score

10^/10

gh0strat persistence rat

Malware Config

Signatures

Gh0st RAT payload 4 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012260-6.dat	family_gh0strat
behavioral1/files/0x000a000000012260-9.dat	family_gh0strat
behavioral1/files/0x000a000000012260-8.dat	family_gh0strat
behavioral1/files/0x000a000000012260-36.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

Sets DLL path for service in the registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\svchcst\Parameters\ServiceDll = "C:\\Windows\\system32\\259408212.bat"	look2.exe

Executes dropped EXE 3 IoCs

pid	Process
1988	look2.exe
2892	HD_81b1c3abdbe2b6da35c9bd3058d8ac98f3a915fd813a60181f1003d8e14598ad.exe
2784	svchcst.exe

Loads dropped DLL 6 IoCs

pid	Process
1212	81b1c3abdbe2b6da35c9bd3058d8ac98f3a915fd813a60181f1003d8e14598ad.exe
1988	look2.exe
1736	svchost.exe
1212	81b1c3abdbe2b6da35c9bd3058d8ac98f3a915fd813a60181f1003d8e14598ad.exe
1736	svchost.exe
2784	svchcst.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\259408212.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	81b1c3abdbe2b6da35c9bd3058d8ac98f3a915fd813a60181f1003d8e14598ad.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1212	81b1c3abdbe2b6da35c9bd3058d8ac98f3a915fd813a60181f1003d8e14598ad.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1212	81b1c3abdbe2b6da35c9bd3058d8ac98f3a915fd813a60181f1003d8e14598ad.exe
1212	81b1c3abdbe2b6da35c9bd3058d8ac98f3a915fd813a60181f1003d8e14598ad.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1212 wrote to memory of 1988	1212	81b1c3abdbe2b6da35c9bd3058d8ac98f3a915fd813a60181f1003d8e14598ad.exe	28
PID 1212 wrote to memory of 1988	1212	81b1c3abdbe2b6da35c9bd3058d8ac98f3a915fd813a60181f1003d8e14598ad.exe	28
PID 1212 wrote to memory of 1988	1212	81b1c3abdbe2b6da35c9bd3058d8ac98f3a915fd813a60181f1003d8e14598ad.exe	28
PID 1212 wrote to memory of 1988	1212	81b1c3abdbe2b6da35c9bd3058d8ac98f3a915fd813a60181f1003d8e14598ad.exe	28
PID 1212 wrote to memory of 2892	1212	81b1c3abdbe2b6da35c9bd3058d8ac98f3a915fd813a60181f1003d8e14598ad.exe	31
PID 1212 wrote to memory of 2892	1212	81b1c3abdbe2b6da35c9bd3058d8ac98f3a915fd813a60181f1003d8e14598ad.exe	31
PID 1212 wrote to memory of 2892	1212	81b1c3abdbe2b6da35c9bd3058d8ac98f3a915fd813a60181f1003d8e14598ad.exe	31
PID 1212 wrote to memory of 2892	1212	81b1c3abdbe2b6da35c9bd3058d8ac98f3a915fd813a60181f1003d8e14598ad.exe	31
PID 1736 wrote to memory of 2784	1736	svchost.exe	32
PID 1736 wrote to memory of 2784	1736	svchost.exe	32
PID 1736 wrote to memory of 2784	1736	svchost.exe	32
PID 1736 wrote to memory of 2784	1736	svchost.exe	32

C:\Users\Admin\AppData\Local\Temp\81b1c3abdbe2b6da35c9bd3058d8ac98f3a915fd813a60181f1003d8e14598ad.exe
"C:\Users\Admin\AppData\Local\Temp\81b1c3abdbe2b6da35c9bd3058d8ac98f3a915fd813a60181f1003d8e14598ad.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1212
- 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:1988
- C:\Users\Admin\AppData\Local\Temp\HD_81b1c3abdbe2b6da35c9bd3058d8ac98f3a915fd813a60181f1003d8e14598ad.exe
  C:\Users\Admin\AppData\Local\Temp\HD_81b1c3abdbe2b6da35c9bd3058d8ac98f3a915fd813a60181f1003d8e14598ad.exe
  2⤵
  - Executes dropped EXE
  PID:2892

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "svchcst"
1⤵
PID:2192

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:1736
- C:\Windows\SysWOW64\svchcst.exe
  C:\Windows\system32\svchcst.exe "c:\windows\system32\259408212.bat",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:2784

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\HD_81b1c3abdbe2b6da35c9bd3058d8ac98f3a915fd813a60181f1003d8e14598ad.exe

Filesize
3.1MB

MD5
fb083acd60fe5c3156dc25442be815e3

SHA1
61df59b8f3ebd8b3d29ca3aedc4995e23cacf6d8

SHA256
f130b3789962d5c8b59aa250d6f26ad5945928f3905b32bf65aa7bd30348a794

SHA512
7147337d2c1006bb15cfa967c9eea6826b63c8d343f866e7454d7368d25019f39e52cf179500810834244c3ca9644d6c0df0b2c3128a9051e9ee6b428fa926f6

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

Filesize
1.5MB

MD5
2968a2634b2eecbc4e18b7ecc121cda7

SHA1
bfe8b5e2ffc2ebcb28f4a5a4f27530fc9e8fc288

SHA256
af5bf09987c384b4a34b88d995f126d32c129d854a769806673774d0a89f9154

SHA512
f346c143b03a9d329df6cdf6117ff20172318dd906082009d1a88c40d7a55eb17b082b8260cf7a41f4b5e13f21ccae121cd775b632c8b550b61ffef7ef949933

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\svchcst.exe

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

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

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit
\??\c:\windows\SysWOW64\259408212.bat

Filesize
51KB

MD5
73e49a3a6e553d6983ca271a835d97ff

SHA1
366da6a7528f68c845ea20b22dff7b827d65a970

SHA256
ed56ba4b7737bd8a3519db199b85d5228668ce4c1dfed2e7145bda1b74ae8ca5

SHA512
3b20ddf812f84e45837517b2ed083ce68b93ed454cbfee5071c02f5515100c01a419fb580c320aff64f7cf3c5a11dc216fc90351d082bde7c678b18ffdabf127

Download Submit
\Users\Admin\AppData\Local\Temp\HD_81b1c3abdbe2b6da35c9bd3058d8ac98f3a915fd813a60181f1003d8e14598ad.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\259408212.bat

Filesize
51KB

MD5
73e49a3a6e553d6983ca271a835d97ff

SHA1
366da6a7528f68c845ea20b22dff7b827d65a970

SHA256
ed56ba4b7737bd8a3519db199b85d5228668ce4c1dfed2e7145bda1b74ae8ca5

SHA512
3b20ddf812f84e45837517b2ed083ce68b93ed454cbfee5071c02f5515100c01a419fb580c320aff64f7cf3c5a11dc216fc90351d082bde7c678b18ffdabf127

Download Submit
\Windows\SysWOW64\259408212.bat

Filesize
51KB

MD5
73e49a3a6e553d6983ca271a835d97ff

SHA1
366da6a7528f68c845ea20b22dff7b827d65a970

SHA256
ed56ba4b7737bd8a3519db199b85d5228668ce4c1dfed2e7145bda1b74ae8ca5

SHA512
3b20ddf812f84e45837517b2ed083ce68b93ed454cbfee5071c02f5515100c01a419fb580c320aff64f7cf3c5a11dc216fc90351d082bde7c678b18ffdabf127

Download Submit
\Windows\SysWOW64\259408212.bat

Filesize
51KB

MD5
73e49a3a6e553d6983ca271a835d97ff

SHA1
366da6a7528f68c845ea20b22dff7b827d65a970

SHA256
ed56ba4b7737bd8a3519db199b85d5228668ce4c1dfed2e7145bda1b74ae8ca5

SHA512
3b20ddf812f84e45837517b2ed083ce68b93ed454cbfee5071c02f5515100c01a419fb580c320aff64f7cf3c5a11dc216fc90351d082bde7c678b18ffdabf127

Download Submit
\Windows\SysWOW64\svchcst.exe

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit