gh0strat | 9f90237636423d4a1246e37a872da1ef9b65e0449d9e919203d6479c84a8a474

Analysis

max time kernel
150s
max time network
136s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
03-12-2024 16:07

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General

Target

9f90237636423d4a1246e37a872da1ef9b65e0449d9e919203d6479c84a8a474.exe
Size

10.2MB
MD5

3b53b9eeefa90c4a0f36f2a122494c05
SHA1

f27f9f797f59c3783f028b79dbace61e19d7351e
SHA256

9f90237636423d4a1246e37a872da1ef9b65e0449d9e919203d6479c84a8a474
SHA512

6c3cf4ff54623532a679636f1e074f0c4e101c670e6ade2dc50775a4e598885feb4b074d760ba61c9dbb2d814708fdab308a62b8165670f07ba7faed7a7eaf09
SSDEEP

196608:ZKXbeO7GF9mSK5z4u144fdRzZhFEtkQhOwA+wmoFcsQLmPMcJoCX:67Gnmb1bfLzZhFEtkQhOwA+wmoFcsQLM

Score

10^/10

gh0strat purplefox discovery persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 5 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral1/memory/2828-20-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2828-19-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2740-41-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2740-50-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2740-52-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 6 IoCs

resource	yara_rule
behavioral1/files/0x0009000000015cc8-6.dat	family_gh0strat
behavioral1/memory/2828-20-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2828-19-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2740-41-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2740-50-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2740-52-0x0000000010000000-0x00000000101B6000-memory.dmp	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
PurpleFox
PurpleFox is an exploit kit used to distribute other malware families and first seen in 2018.
rootkit trojan purplefox
Purplefox family
purplefox

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File created	C:\Windows\system32\drivers\QAssist.sys	TXPlatfor.exe

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\Remote Data\Parameters\ServiceDll = "C:\\Windows\\system32\\259419631.txt"	R.exe

Sets service image path in 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\QAssist\ImagePath = "system32\\DRIVERS\\QAssist.sys"	TXPlatfor.exe

Executes dropped EXE 6 IoCs

pid	Process
2928	R.exe
2828	N.exe
2936	TXPlatfor.exe
2740	TXPlatfor.exe
2164	HD_9f90237636423d4a1246e37a872da1ef9b65e0449d9e919203d6479c84a8a474.exe
1648	Remote Data.exe

Loads dropped DLL 9 IoCs

pid	Process
2244	9f90237636423d4a1246e37a872da1ef9b65e0449d9e919203d6479c84a8a474.exe
2928	R.exe
2800	svchost.exe
2244	9f90237636423d4a1246e37a872da1ef9b65e0449d9e919203d6479c84a8a474.exe
2936	TXPlatfor.exe
2244	9f90237636423d4a1246e37a872da1ef9b65e0449d9e919203d6479c84a8a474.exe
2244	9f90237636423d4a1246e37a872da1ef9b65e0449d9e919203d6479c84a8a474.exe
2800	svchost.exe
1648	Remote Data.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Remote Data.exe	svchost.exe
File opened for modification	C:\Windows\SysWOW64\Remote Data.exe	svchost.exe
File created	C:\Windows\SysWOW64\TXPlatfor.exe	N.exe
File opened for modification	C:\Windows\SysWOW64\TXPlatfor.exe	N.exe
File created	C:\Windows\SysWOW64\259419631.txt	R.exe
File opened for modification	C:\Windows\SysWOW64\ini.ini	R.exe

UPX packed file 6 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2828-17-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2828-20-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2828-19-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2740-41-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2740-50-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2740-52-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 9 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	N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	TXPlatfor.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	HD_9f90237636423d4a1246e37a872da1ef9b65e0449d9e919203d6479c84a8a474.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	R.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Remote Data.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9f90237636423d4a1246e37a872da1ef9b65e0449d9e919203d6479c84a8a474.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
1480	PING.EXE
2680	cmd.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1480	PING.EXE

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2244	9f90237636423d4a1246e37a872da1ef9b65e0449d9e919203d6479c84a8a474.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
2740	TXPlatfor.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2828	N.exe
Token: SeLoadDriverPrivilege	2740	TXPlatfor.exe
Token: 33	2740	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	2740	TXPlatfor.exe
Token: 33	2740	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	2740	TXPlatfor.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
2164	HD_9f90237636423d4a1246e37a872da1ef9b65e0449d9e919203d6479c84a8a474.exe
2164	HD_9f90237636423d4a1246e37a872da1ef9b65e0449d9e919203d6479c84a8a474.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
2164	HD_9f90237636423d4a1246e37a872da1ef9b65e0449d9e919203d6479c84a8a474.exe
2164	HD_9f90237636423d4a1246e37a872da1ef9b65e0449d9e919203d6479c84a8a474.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
2244	9f90237636423d4a1246e37a872da1ef9b65e0449d9e919203d6479c84a8a474.exe
2244	9f90237636423d4a1246e37a872da1ef9b65e0449d9e919203d6479c84a8a474.exe
2164	HD_9f90237636423d4a1246e37a872da1ef9b65e0449d9e919203d6479c84a8a474.exe
2164	HD_9f90237636423d4a1246e37a872da1ef9b65e0449d9e919203d6479c84a8a474.exe
2164	HD_9f90237636423d4a1246e37a872da1ef9b65e0449d9e919203d6479c84a8a474.exe
2164	HD_9f90237636423d4a1246e37a872da1ef9b65e0449d9e919203d6479c84a8a474.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 2244 wrote to memory of 2928	2244	9f90237636423d4a1246e37a872da1ef9b65e0449d9e919203d6479c84a8a474.exe	30
PID 2244 wrote to memory of 2928	2244	9f90237636423d4a1246e37a872da1ef9b65e0449d9e919203d6479c84a8a474.exe	30
PID 2244 wrote to memory of 2928	2244	9f90237636423d4a1246e37a872da1ef9b65e0449d9e919203d6479c84a8a474.exe	30
PID 2244 wrote to memory of 2928	2244	9f90237636423d4a1246e37a872da1ef9b65e0449d9e919203d6479c84a8a474.exe	30
PID 2244 wrote to memory of 2828	2244	9f90237636423d4a1246e37a872da1ef9b65e0449d9e919203d6479c84a8a474.exe	33
PID 2244 wrote to memory of 2828	2244	9f90237636423d4a1246e37a872da1ef9b65e0449d9e919203d6479c84a8a474.exe	33
PID 2244 wrote to memory of 2828	2244	9f90237636423d4a1246e37a872da1ef9b65e0449d9e919203d6479c84a8a474.exe	33
PID 2244 wrote to memory of 2828	2244	9f90237636423d4a1246e37a872da1ef9b65e0449d9e919203d6479c84a8a474.exe	33
PID 2244 wrote to memory of 2828	2244	9f90237636423d4a1246e37a872da1ef9b65e0449d9e919203d6479c84a8a474.exe	33
PID 2244 wrote to memory of 2828	2244	9f90237636423d4a1246e37a872da1ef9b65e0449d9e919203d6479c84a8a474.exe	33
PID 2244 wrote to memory of 2828	2244	9f90237636423d4a1246e37a872da1ef9b65e0449d9e919203d6479c84a8a474.exe	33
PID 2828 wrote to memory of 2680	2828	N.exe	35
PID 2828 wrote to memory of 2680	2828	N.exe	35
PID 2828 wrote to memory of 2680	2828	N.exe	35
PID 2828 wrote to memory of 2680	2828	N.exe	35
PID 2936 wrote to memory of 2740	2936	TXPlatfor.exe	37
PID 2936 wrote to memory of 2740	2936	TXPlatfor.exe	37
PID 2936 wrote to memory of 2740	2936	TXPlatfor.exe	37
PID 2936 wrote to memory of 2740	2936	TXPlatfor.exe	37
PID 2936 wrote to memory of 2740	2936	TXPlatfor.exe	37
PID 2936 wrote to memory of 2740	2936	TXPlatfor.exe	37
PID 2936 wrote to memory of 2740	2936	TXPlatfor.exe	37
PID 2244 wrote to memory of 2164	2244	9f90237636423d4a1246e37a872da1ef9b65e0449d9e919203d6479c84a8a474.exe	38
PID 2244 wrote to memory of 2164	2244	9f90237636423d4a1246e37a872da1ef9b65e0449d9e919203d6479c84a8a474.exe	38
PID 2244 wrote to memory of 2164	2244	9f90237636423d4a1246e37a872da1ef9b65e0449d9e919203d6479c84a8a474.exe	38
PID 2244 wrote to memory of 2164	2244	9f90237636423d4a1246e37a872da1ef9b65e0449d9e919203d6479c84a8a474.exe	38
PID 2680 wrote to memory of 1480	2680	cmd.exe	39
PID 2680 wrote to memory of 1480	2680	cmd.exe	39
PID 2680 wrote to memory of 1480	2680	cmd.exe	39
PID 2680 wrote to memory of 1480	2680	cmd.exe	39
PID 2800 wrote to memory of 1648	2800	svchost.exe	41
PID 2800 wrote to memory of 1648	2800	svchost.exe	41
PID 2800 wrote to memory of 1648	2800	svchost.exe	41
PID 2800 wrote to memory of 1648	2800	svchost.exe	41

C:\Users\Admin\AppData\Local\Temp\9f90237636423d4a1246e37a872da1ef9b65e0449d9e919203d6479c84a8a474.exe
"C:\Users\Admin\AppData\Local\Temp\9f90237636423d4a1246e37a872da1ef9b65e0449d9e919203d6479c84a8a474.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2244
- C:\Users\Admin\AppData\Local\Temp\R.exe
  C:\Users\Admin\AppData\Local\Temp\\R.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:2928
- C:\Users\Admin\AppData\Local\Temp\N.exe
  C:\Users\Admin\AppData\Local\Temp\\N.exe
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2828
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ping -n 2 127.0.0.1 > nul && del C:\Users\Admin\AppData\Local\Temp\N.exe > nul
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Suspicious use of WriteProcessMemory
    PID:2680
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 2 127.0.0.1
      4⤵
      System Location Discovery: System Language Discovery
      System Network Configuration Discovery: Internet Connection Discovery
      Runs ping.exe
      PID:1480
- C:\Users\Admin\AppData\Local\Temp\HD_9f90237636423d4a1246e37a872da1ef9b65e0449d9e919203d6479c84a8a474.exe
  C:\Users\Admin\AppData\Local\Temp\HD_9f90237636423d4a1246e37a872da1ef9b65e0449d9e919203d6479c84a8a474.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of SetWindowsHookEx
  PID:2164

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
PID:2820

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2800
- C:\Windows\SysWOW64\Remote Data.exe
  "C:\Windows\system32\Remote Data.exe" "c:\windows\system32\259419631.txt",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:1648

C:\Windows\SysWOW64\TXPlatfor.exe
C:\Windows\SysWOW64\TXPlatfor.exe -auto
1⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2936
- C:\Windows\SysWOW64\TXPlatfor.exe
  C:\Windows\SysWOW64\TXPlatfor.exe -acsi
  2⤵
  - Drops file in Drivers directory
  - Sets service image path in registry
  - Executes dropped EXE
  - Suspicious behavior: LoadsDriver
  - Suspicious use of AdjustPrivilegeToken
  PID:2740

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

Server Software Component

T1505

Terminal Services DLL

T1505.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Remote System Discovery

T1018

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
2.5MB

MD5
3548a7ed0c03549f9e7663decc552e1f

SHA1
3fe8ea1ab0b975833629f8bd3512a52db25604ec

SHA256
25741d924799347adbdd91bc090f17170ba53a8bf66a3cf552e725ac2daefabe

SHA512
8d5072f90437b40b725ff45d7b29f3fee3e1fe5914c2d67e0758d313aad87273f518c58b31acbd07896fc72d1010335f6de4410dfc122a5aa60a5b7302b3b69d

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

Filesize
377KB

MD5
4a36a48e58829c22381572b2040b6fe0

SHA1
f09d30e44ff7e3f20a5de307720f3ad148c6143b

SHA256
3de6c02f52a661b8f934f59541d0cf297bb489eb2155e346b63c7338e09aeaf8

SHA512
5d0ea398792f6b9eb3f188813c50b7f43929183b5733d2b595b2fd1c78722764fd15f62db1086b5c7edfb157661a6dcd544ddd80907ee7699dddbca1ef4022d0

Download Submit
\Users\Admin\AppData\Local\Temp\HD_9f90237636423d4a1246e37a872da1ef9b65e0449d9e919203d6479c84a8a474.exe

Filesize
7.7MB

MD5
9251ad5ca1fa0a93e0db0a0ade57afec

SHA1
d249d135ea604bb162e922d00dcaf0c2cd759882

SHA256
a1b3bcbc2fdb3b31a784bf6a4032abcf236f1af2f7db1920ee19b9ea85873443

SHA512
25d9a8fc37da10711d5e287eed076ba0d6b2f74095f24c7aa00ae59a838fc7bdc273e31dc6b8cac5d33d85592b573b90d6c777df71787d55b81ce41abdb714e8

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

Filesize
941KB

MD5
8dc3adf1c490211971c1e2325f1424d2

SHA1
4eec4a4e7cb97c5efa6c72e0731cd090c0c4adc5

SHA256
bc29f2022ab3b812e50c8681ff196f090c038b5ab51e37daffac4469a8c2eb2c

SHA512
ae92ea20b359849dcdba4808119b154e3af5ef3687ee09de1797610fe8c4d3eb9065b068074d35adddb4b225d17c619baff3944cb137ad196bcef7a6507f920d

Download Submit
\Windows\SysWOW64\259419631.txt

Filesize
899KB

MD5
82d8fdc5eb2aa2ed0b9e17d9ce302878

SHA1
aaf177c83a8d9d9d45a3f8168dc7ee6fb2c2e2a7

SHA256
11df4b12d2c12a33f86ea57367d3c54284fb41102bab3254ba28b5fc97a55817

SHA512
a9ecea43ca2061d8b251dfd68ec6d98b915399ccbbf1e3c4f5cf13379418863f54057bda01cb545e2d9865280c4278eba2a7ee432c9fbf202ac4ff8cf7c5661d

Download Submit
\Windows\SysWOW64\Remote Data.exe

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit
memory/2740-41-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2740-50-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2740-52-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2828-17-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2828-20-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2828-19-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download