gh0strat | 831d21d8a97b90b6f0482fd6641df0e6b2d42c01ecfc3b125fd2a49eaf313e60

General

Target

831d21d8a97b90b6f0482fd6641df0e6b2d42c01ecfc3b125fd2a49eaf313e60.exe
Size

3.7MB
MD5

2f1acd1dd640fd670765f273206c0922
SHA1

26bffc39b219d9e6223415c9913fd5ed5832920f
SHA256

831d21d8a97b90b6f0482fd6641df0e6b2d42c01ecfc3b125fd2a49eaf313e60
SHA512

54c53953ec8c2b292347e7067c8dd0c08091cb6fa55b56ed13dd18fa249b6a975dddc12da57089e7b3a1f887c9353cc617f195bc8cbea074bed258950b0bfefb
SSDEEP

49152:ZCwsbCANnKXferL7Vwe/Gg0P+WhXi7tjrlkWNE3LOEpFRMwXp0LW:Uws2ANnKXOaeOgmhXSwOEpFRpl

Score

10^/10

gh0strat purplefox persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 5 IoCs

Detect PurpleFox Rootkit.

rootkit

Processes:

resource	yara_rule
behavioral1/memory/3056-21-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/3056-20-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2848-41-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2848-45-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2848-49-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 6 IoCs

Processes:

resource	yara_rule
\Windows\SysWOW64\259395872.txt	family_gh0strat
behavioral1/memory/3056-21-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/3056-20-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2848-41-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2848-45-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2848-49-0x0000000010000000-0x00000000101B6000-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\\259395872.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.exeTXPlatfor.exeHD_831d21d8a97b90b6f0482fd6641df0e6b2d42c01ecfc3b125fd2a49eaf313e60.exeRemote Data.exe

pid	process
2096	R.exe
3056	N.exe
2720	TXPlatfor.exe
2848	TXPlatfor.exe
2748	HD_831d21d8a97b90b6f0482fd6641df0e6b2d42c01ecfc3b125fd2a49eaf313e60.exe
2960	Remote Data.exe

Loads dropped DLL 8 IoCs

Processes:

831d21d8a97b90b6f0482fd6641df0e6b2d42c01ecfc3b125fd2a49eaf313e60.exeR.exesvchost.exeTXPlatfor.exeRemote Data.exe

pid	process
1084	831d21d8a97b90b6f0482fd6641df0e6b2d42c01ecfc3b125fd2a49eaf313e60.exe
2096	R.exe
3040	svchost.exe
1084	831d21d8a97b90b6f0482fd6641df0e6b2d42c01ecfc3b125fd2a49eaf313e60.exe
2720	TXPlatfor.exe
1084	831d21d8a97b90b6f0482fd6641df0e6b2d42c01ecfc3b125fd2a49eaf313e60.exe
3040	svchost.exe
2960	Remote Data.exe

UPX packed file 6 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/3056-18-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/3056-21-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/3056-20-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2848-41-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2848-45-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2848-49-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

Drops file in System32 directory 6 IoCs

Processes:

svchost.exeN.exeR.exe

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\259395872.txt	R.exe
File opened for modification	C:\Windows\SysWOW64\ini.ini	R.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

2520 PING.EXE
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

831d21d8a97b90b6f0482fd6641df0e6b2d42c01ecfc3b125fd2a49eaf313e60.exe

pid process

1084 831d21d8a97b90b6f0482fd6641df0e6b2d42c01ecfc3b125fd2a49eaf313e60.exe
Suspicious behavior: LoadsDriver 1 IoCs

Processes:

TXPlatfor.exe

pid process

2848 TXPlatfor.exe

pid	process
2520	PING.EXE

pid	process
2848	TXPlatfor.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

N.exeTXPlatfor.exe

description	pid	process
Token: SeIncBasePriorityPrivilege	3056	N.exe
Token: SeLoadDriverPrivilege	2848	TXPlatfor.exe
Token: 33	2848	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	2848	TXPlatfor.exe
Token: 33	2848	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	2848	TXPlatfor.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

831d21d8a97b90b6f0482fd6641df0e6b2d42c01ecfc3b125fd2a49eaf313e60.exe

pid	process
1084	831d21d8a97b90b6f0482fd6641df0e6b2d42c01ecfc3b125fd2a49eaf313e60.exe
1084	831d21d8a97b90b6f0482fd6641df0e6b2d42c01ecfc3b125fd2a49eaf313e60.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

831d21d8a97b90b6f0482fd6641df0e6b2d42c01ecfc3b125fd2a49eaf313e60.exeN.exeTXPlatfor.execmd.exesvchost.exe

description	pid	process	target process
PID 1084 wrote to memory of 2096	1084	831d21d8a97b90b6f0482fd6641df0e6b2d42c01ecfc3b125fd2a49eaf313e60.exe	R.exe
PID 1084 wrote to memory of 2096	1084	831d21d8a97b90b6f0482fd6641df0e6b2d42c01ecfc3b125fd2a49eaf313e60.exe	R.exe
PID 1084 wrote to memory of 2096	1084	831d21d8a97b90b6f0482fd6641df0e6b2d42c01ecfc3b125fd2a49eaf313e60.exe	R.exe
PID 1084 wrote to memory of 2096	1084	831d21d8a97b90b6f0482fd6641df0e6b2d42c01ecfc3b125fd2a49eaf313e60.exe	R.exe
PID 1084 wrote to memory of 3056	1084	831d21d8a97b90b6f0482fd6641df0e6b2d42c01ecfc3b125fd2a49eaf313e60.exe	N.exe
PID 1084 wrote to memory of 3056	1084	831d21d8a97b90b6f0482fd6641df0e6b2d42c01ecfc3b125fd2a49eaf313e60.exe	N.exe
PID 1084 wrote to memory of 3056	1084	831d21d8a97b90b6f0482fd6641df0e6b2d42c01ecfc3b125fd2a49eaf313e60.exe	N.exe
PID 1084 wrote to memory of 3056	1084	831d21d8a97b90b6f0482fd6641df0e6b2d42c01ecfc3b125fd2a49eaf313e60.exe	N.exe
PID 1084 wrote to memory of 3056	1084	831d21d8a97b90b6f0482fd6641df0e6b2d42c01ecfc3b125fd2a49eaf313e60.exe	N.exe
PID 1084 wrote to memory of 3056	1084	831d21d8a97b90b6f0482fd6641df0e6b2d42c01ecfc3b125fd2a49eaf313e60.exe	N.exe
PID 1084 wrote to memory of 3056	1084	831d21d8a97b90b6f0482fd6641df0e6b2d42c01ecfc3b125fd2a49eaf313e60.exe	N.exe
PID 3056 wrote to memory of 2496	3056	N.exe	cmd.exe
PID 3056 wrote to memory of 2496	3056	N.exe	cmd.exe
PID 3056 wrote to memory of 2496	3056	N.exe	cmd.exe
PID 3056 wrote to memory of 2496	3056	N.exe	cmd.exe
PID 2720 wrote to memory of 2848	2720	TXPlatfor.exe	TXPlatfor.exe
PID 2720 wrote to memory of 2848	2720	TXPlatfor.exe	TXPlatfor.exe
PID 2720 wrote to memory of 2848	2720	TXPlatfor.exe	TXPlatfor.exe
PID 2720 wrote to memory of 2848	2720	TXPlatfor.exe	TXPlatfor.exe
PID 2720 wrote to memory of 2848	2720	TXPlatfor.exe	TXPlatfor.exe
PID 2720 wrote to memory of 2848	2720	TXPlatfor.exe	TXPlatfor.exe
PID 2720 wrote to memory of 2848	2720	TXPlatfor.exe	TXPlatfor.exe
PID 2496 wrote to memory of 2520	2496	cmd.exe	PING.EXE
PID 2496 wrote to memory of 2520	2496	cmd.exe	PING.EXE
PID 2496 wrote to memory of 2520	2496	cmd.exe	PING.EXE
PID 2496 wrote to memory of 2520	2496	cmd.exe	PING.EXE
PID 3040 wrote to memory of 2960	3040	svchost.exe	Remote Data.exe
PID 3040 wrote to memory of 2960	3040	svchost.exe	Remote Data.exe
PID 3040 wrote to memory of 2960	3040	svchost.exe	Remote Data.exe
PID 3040 wrote to memory of 2960	3040	svchost.exe	Remote Data.exe

C:\Users\Admin\AppData\Local\Temp\831d21d8a97b90b6f0482fd6641df0e6b2d42c01ecfc3b125fd2a49eaf313e60.exe
"C:\Users\Admin\AppData\Local\Temp\831d21d8a97b90b6f0482fd6641df0e6b2d42c01ecfc3b125fd2a49eaf313e60.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1084

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:2096

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:3056

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:2496

C:\Windows\SysWOW64\PING.EXE
ping -n 2 127.0.0.1
4⤵
- Runs ping.exe
PID:2520

C:\Users\Admin\AppData\Local\Temp\HD_831d21d8a97b90b6f0482fd6641df0e6b2d42c01ecfc3b125fd2a49eaf313e60.exe
C:\Users\Admin\AppData\Local\Temp\HD_831d21d8a97b90b6f0482fd6641df0e6b2d42c01ecfc3b125fd2a49eaf313e60.exe
2⤵
- Executes dropped EXE
PID:2748

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
PID:1964

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:3040

C:\Windows\SysWOW64\Remote Data.exe
"C:\Windows\system32\Remote Data.exe" "c:\windows\system32\259395872.txt",MainThread
2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:2960

C:\Windows\SysWOW64\TXPlatfor.exe
C:\Windows\SysWOW64\TXPlatfor.exe -auto
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2720

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:2848

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

Replay Monitor

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Downloads

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

Filesize
2.3MB

MD5
f7e023a3f0cf6ae04bcf11a972707fad

SHA1
03592b1e588945bff959ab92786374d320f39059

SHA256
781c6d1068257e483a8fd115ed79b25aef65882b041b622c98a8283a05c09fea

SHA512
4fcc4865056e479571dd5dc3012acd896a7e292a21c0cbbd27ccae75ac5d2541f875cc7245ac0ebe7ae9063e1b66125c0e3b127a44d7a5ad5d2c2bd122d3585a

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

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit
\Users\Admin\AppData\Local\Temp\HD_831d21d8a97b90b6f0482fd6641df0e6b2d42c01ecfc3b125fd2a49eaf313e60.exe

Filesize
1.4MB

MD5
1f2690d9d4498b366e38701cfe2d3ee6

SHA1
68c1c63a636a1dbdde6ddff3dcf7fd713bdae953

SHA256
76031a9049224f771ae0fbd8bbb21636a39fc588ef227c42eeb7774f03793509

SHA512
07af9b3f02706bdc386886a0e083692bf0a47c37a3a334ac3884499da16fb715d7581fa8559ab7fb8976ce9e5d2aff3203ce4870af6a9e1cf0c285478e8f389a

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

Filesize
377KB

MD5
4a36a48e58829c22381572b2040b6fe0

SHA1
f09d30e44ff7e3f20a5de307720f3ad148c6143b

SHA256
3de6c02f52a661b8f934f59541d0cf297bb489eb2155e346b63c7338e09aeaf8

SHA512
5d0ea398792f6b9eb3f188813c50b7f43929183b5733d2b595b2fd1c78722764fd15f62db1086b5c7edfb157661a6dcd544ddd80907ee7699dddbca1ef4022d0

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

Filesize
941KB

MD5
8dc3adf1c490211971c1e2325f1424d2

SHA1
4eec4a4e7cb97c5efa6c72e0731cd090c0c4adc5

SHA256
bc29f2022ab3b812e50c8681ff196f090c038b5ab51e37daffac4469a8c2eb2c

SHA512
ae92ea20b359849dcdba4808119b154e3af5ef3687ee09de1797610fe8c4d3eb9065b068074d35adddb4b225d17c619baff3944cb137ad196bcef7a6507f920d

Download Submit
\Windows\SysWOW64\259395872.txt

Filesize
899KB

MD5
19853c8878133ee8c9245a02f1e96aaa

SHA1
05dd4d744d8c7a21c2ffedbb4254a68e7220e54f

SHA256
2b492f96af6acff123b6e22b98522ce01b98c4f95d11c46e86288fd04ad9b884

SHA512
adce430c7907796bad08b6c35669728becb51987125ff52c76ba339c90d7b884f770dc5cb02d31a09f2cb979cd0363adec6c3b46c10d3043bafc3c7f61fcb412

Download Submit
memory/2848-41-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2848-45-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2848-49-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3056-18-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3056-21-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3056-20-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads