gh0strat | 66c7cc527d7e8c4d91af1e20e7b1608ad3141f96219b0626e0f0ef84737925d3

General

Target

66c7cc527d7e8c4d91af1e20e7b1608ad3141f96219b0626e0f0ef84737925d3.exe
Size

4.4MB
MD5

754cebd19514dc9ba28948510a34887e
SHA1

91f972dfd200d30024d5a9fd5f0f16adc8eb3368
SHA256

66c7cc527d7e8c4d91af1e20e7b1608ad3141f96219b0626e0f0ef84737925d3
SHA512

1dd182f1b25499479dee1ac9b743e244f41341a3f686040cd6cbc0f590d512fcb45c7e136b40cc52ee7af0e2c12a7771da558528e2211d2d5eff1c9754633880
SSDEEP

49152:0CwsbCANnKXferL7Vwe/Gg0P+WhmDmn2SQ6nYhe0N0vFWV886XMXM6Epx:Xws2ANnKXOaeOgmhmDmn2SFWe0N0NWg

Score

10^/10

gh0strat purplefox persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 8 IoCs

Detect PurpleFox Rootkit.

rootkit

Processes:

resource	yara_rule
behavioral2/memory/4440-19-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4440-20-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4440-23-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2408-29-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2408-28-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/1096-42-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/1096-44-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/1096-46-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 9 IoCs

Processes:

resource	yara_rule
C:\Windows\SysWOW64\240598750.txt	family_gh0strat
behavioral2/memory/4440-19-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4440-20-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4440-23-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/2408-29-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/2408-28-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/1096-42-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/1096-44-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/1096-46-0x0000000010000000-0x00000000101B6000-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
PurpleFox
PurpleFox is an exploit kit used to distribute other malware families and first seen in 2018.
rootkit trojan purplefox
Drops file in Drivers directory 1 IoCs

Processes:

TXPlatfor.exe

description ioc process

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

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

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

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

R.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Remote Data\Parameters\ServiceDll = "C:\\Windows\\system32\\240598750.txt"	R.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

TXPlatfor.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\QAssist\ImagePath = "system32\\DRIVERS\\QAssist.sys"	TXPlatfor.exe

Executes dropped EXE 6 IoCs

Processes:

R.exeN.exeTXPlatfor.exeHD_66c7cc527d7e8c4d91af1e20e7b1608ad3141f96219b0626e0f0ef84737925d3.exeTXPlatfor.exeRemote Data.exe

pid	process
1088	R.exe
4440	N.exe
2408	TXPlatfor.exe
2568	HD_66c7cc527d7e8c4d91af1e20e7b1608ad3141f96219b0626e0f0ef84737925d3.exe
1096	TXPlatfor.exe
3772	Remote Data.exe

Loads dropped DLL 3 IoCs

Processes:

R.exesvchost.exeRemote Data.exe

pid process

1088 R.exe
2208 svchost.exe
3772 Remote Data.exe

UPX packed file 10 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/4440-17-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4440-19-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4440-20-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4440-23-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2408-29-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2408-26-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2408-28-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1096-42-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1096-44-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1096-46-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

Drops file in System32 directory 6 IoCs

Processes:

N.exeR.exesvchost.exe

description	ioc	process
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\240598750.txt	R.exe
File opened for modification	C:\Windows\SysWOW64\ini.ini	R.exe
File created	C:\Windows\SysWOW64\Remote Data.exe	svchost.exe
File opened for modification	C:\Windows\SysWOW64\Remote Data.exe	svchost.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

676 PING.EXE

pid	process
676	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

66c7cc527d7e8c4d91af1e20e7b1608ad3141f96219b0626e0f0ef84737925d3.exe

pid	process
4976	66c7cc527d7e8c4d91af1e20e7b1608ad3141f96219b0626e0f0ef84737925d3.exe
4976	66c7cc527d7e8c4d91af1e20e7b1608ad3141f96219b0626e0f0ef84737925d3.exe

Suspicious behavior: LoadsDriver 1 IoCs

Processes:

TXPlatfor.exe

pid process

1096 TXPlatfor.exe

pid	process
1096	TXPlatfor.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

N.exeTXPlatfor.exe

description	pid	process
Token: SeIncBasePriorityPrivilege	4440	N.exe
Token: SeLoadDriverPrivilege	1096	TXPlatfor.exe
Token: 33	1096	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	1096	TXPlatfor.exe
Token: 33	1096	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	1096	TXPlatfor.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

66c7cc527d7e8c4d91af1e20e7b1608ad3141f96219b0626e0f0ef84737925d3.exe

pid	process
4976	66c7cc527d7e8c4d91af1e20e7b1608ad3141f96219b0626e0f0ef84737925d3.exe
4976	66c7cc527d7e8c4d91af1e20e7b1608ad3141f96219b0626e0f0ef84737925d3.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

66c7cc527d7e8c4d91af1e20e7b1608ad3141f96219b0626e0f0ef84737925d3.exeN.exeTXPlatfor.execmd.exesvchost.exe

description	pid	process	target process
PID 4976 wrote to memory of 1088	4976	66c7cc527d7e8c4d91af1e20e7b1608ad3141f96219b0626e0f0ef84737925d3.exe	R.exe
PID 4976 wrote to memory of 1088	4976	66c7cc527d7e8c4d91af1e20e7b1608ad3141f96219b0626e0f0ef84737925d3.exe	R.exe
PID 4976 wrote to memory of 1088	4976	66c7cc527d7e8c4d91af1e20e7b1608ad3141f96219b0626e0f0ef84737925d3.exe	R.exe
PID 4976 wrote to memory of 4440	4976	66c7cc527d7e8c4d91af1e20e7b1608ad3141f96219b0626e0f0ef84737925d3.exe	N.exe
PID 4976 wrote to memory of 4440	4976	66c7cc527d7e8c4d91af1e20e7b1608ad3141f96219b0626e0f0ef84737925d3.exe	N.exe
PID 4976 wrote to memory of 4440	4976	66c7cc527d7e8c4d91af1e20e7b1608ad3141f96219b0626e0f0ef84737925d3.exe	N.exe
PID 4440 wrote to memory of 3912	4440	N.exe	cmd.exe
PID 4440 wrote to memory of 3912	4440	N.exe	cmd.exe
PID 4440 wrote to memory of 3912	4440	N.exe	cmd.exe
PID 2408 wrote to memory of 1096	2408	TXPlatfor.exe	TXPlatfor.exe
PID 2408 wrote to memory of 1096	2408	TXPlatfor.exe	TXPlatfor.exe
PID 2408 wrote to memory of 1096	2408	TXPlatfor.exe	TXPlatfor.exe
PID 4976 wrote to memory of 2568	4976	66c7cc527d7e8c4d91af1e20e7b1608ad3141f96219b0626e0f0ef84737925d3.exe	HD_66c7cc527d7e8c4d91af1e20e7b1608ad3141f96219b0626e0f0ef84737925d3.exe
PID 4976 wrote to memory of 2568	4976	66c7cc527d7e8c4d91af1e20e7b1608ad3141f96219b0626e0f0ef84737925d3.exe	HD_66c7cc527d7e8c4d91af1e20e7b1608ad3141f96219b0626e0f0ef84737925d3.exe
PID 4976 wrote to memory of 2568	4976	66c7cc527d7e8c4d91af1e20e7b1608ad3141f96219b0626e0f0ef84737925d3.exe	HD_66c7cc527d7e8c4d91af1e20e7b1608ad3141f96219b0626e0f0ef84737925d3.exe
PID 3912 wrote to memory of 676	3912	cmd.exe	PING.EXE
PID 3912 wrote to memory of 676	3912	cmd.exe	PING.EXE
PID 3912 wrote to memory of 676	3912	cmd.exe	PING.EXE
PID 2208 wrote to memory of 3772	2208	svchost.exe	Remote Data.exe
PID 2208 wrote to memory of 3772	2208	svchost.exe	Remote Data.exe
PID 2208 wrote to memory of 3772	2208	svchost.exe	Remote Data.exe

C:\Users\Admin\AppData\Local\Temp\66c7cc527d7e8c4d91af1e20e7b1608ad3141f96219b0626e0f0ef84737925d3.exe
"C:\Users\Admin\AppData\Local\Temp\66c7cc527d7e8c4d91af1e20e7b1608ad3141f96219b0626e0f0ef84737925d3.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4976

C:\Users\Admin\AppData\Local\Temp\R.exe
C:\Users\Admin\AppData\Local\Temp\\R.exe
2⤵
- Sets DLL path for service in the registry
- Executes dropped EXE
- Loads dropped DLL
- Drops file in System32 directory
PID:1088

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
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4440

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⤵
- Suspicious use of WriteProcessMemory
PID:3912

C:\Windows\SysWOW64\PING.EXE
ping -n 2 127.0.0.1
4⤵
- Runs ping.exe
PID:676

C:\Users\Admin\AppData\Local\Temp\HD_66c7cc527d7e8c4d91af1e20e7b1608ad3141f96219b0626e0f0ef84737925d3.exe
C:\Users\Admin\AppData\Local\Temp\HD_66c7cc527d7e8c4d91af1e20e7b1608ad3141f96219b0626e0f0ef84737925d3.exe
2⤵
- Executes dropped EXE
PID:2568

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
PID:1452

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:2208

C:\Windows\SysWOW64\Remote Data.exe
"C:\Windows\system32\Remote Data.exe" "c:\windows\system32\240598750.txt",MainThread
2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:3772

C:\Windows\SysWOW64\TXPlatfor.exe
C:\Windows\SysWOW64\TXPlatfor.exe -auto
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2408

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:1096

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

2

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

2

T1547.001

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Remote System Discovery

1

T1018

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\HD_66c7cc527d7e8c4d91af1e20e7b1608ad3141f96219b0626e0f0ef84737925d3.exe

Filesize
1.7MB

MD5
9454dbf90aa5efea51b79e0ba98488f3

SHA1
a3b9b99cb2948646ba0d6cfe308161e6f44b8e87

SHA256
336b9e8cf194e8491a11e58d88162c1112eaebb305265381604bc1d708323451

SHA512
9aac253d9752e28e08d94307e5bb15cdd283f15f544015e244399cfdc2234011dd60d70804b6dbe040f8cbd6112f930c18b1c4be31ed702b2ac93134c2eb4671

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

Filesize
2.7MB

MD5
155aa4ba8a15ef1a432f04832f7df987

SHA1
fb5f8ec5270ed975d3d4466e9bf5f463e2e0548d

SHA256
4223ab7029febc189615f697999eef5852dc9e300f28db61334ec493bd785c6b

SHA512
796278a08a5337c640354cb208958170158675653e2817cedec61e928ca9a1b629ad1ccd9f0380083bb3306a1a17cf943673fde538bc73e7fe6a9acf666c0851

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

Filesize
377KB

MD5
4a36a48e58829c22381572b2040b6fe0

SHA1
f09d30e44ff7e3f20a5de307720f3ad148c6143b

SHA256
3de6c02f52a661b8f934f59541d0cf297bb489eb2155e346b63c7338e09aeaf8

SHA512
5d0ea398792f6b9eb3f188813c50b7f43929183b5733d2b595b2fd1c78722764fd15f62db1086b5c7edfb157661a6dcd544ddd80907ee7699dddbca1ef4022d0

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

Filesize
941KB

MD5
8dc3adf1c490211971c1e2325f1424d2

SHA1
4eec4a4e7cb97c5efa6c72e0731cd090c0c4adc5

SHA256
bc29f2022ab3b812e50c8681ff196f090c038b5ab51e37daffac4469a8c2eb2c

SHA512
ae92ea20b359849dcdba4808119b154e3af5ef3687ee09de1797610fe8c4d3eb9065b068074d35adddb4b225d17c619baff3944cb137ad196bcef7a6507f920d

Download Submit
C:\Windows\SysWOW64\240598750.txt

Filesize
899KB

MD5
4618ffe258f561e5d3e2db0c529196bc

SHA1
5c7c101fa0675b77a7e091946e191d31a4e7f6de

SHA256
e4c1beabe5cf8cb5afbfcdc4e21c6f6e0dcdfc44c87a2775d9fbb33d1f75f794

SHA512
65332371bb01ba3dd3a44e371b7ec937236bd7c8d5a6945b99e639a1ff4799b846748ac7ded64461536caf74fb4df82262351b50320db3ff9afa413ab2edec6a

Download Submit
C:\Windows\SysWOW64\Remote Data.exe

Filesize
60KB

MD5
889b99c52a60dd49227c5e485a016679

SHA1
8fa889e456aa646a4d0a4349977430ce5fa5e2d7

SHA256
6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

SHA512
08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

Download Submit
memory/1096-46-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1096-44-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1096-42-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2408-26-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2408-28-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2408-29-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4440-23-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4440-20-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4440-19-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4440-17-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads