gh0strat | 640b857fd0573bf62985066188dd6585cf803e7700ee3fc98f74843dba7e2050

General

Target

640b857fd0573bf62985066188dd6585cf803e7700ee3fc98f74843dba7e2050.exe
Size

2.3MB
MD5

54da7310e3ebd8f05fa9b91977d1f00d
SHA1

628ed25a7d610df5bae3d79ad7ba17845e6f76f3
SHA256

640b857fd0573bf62985066188dd6585cf803e7700ee3fc98f74843dba7e2050
SHA512

6ccf3cc084f7f2b5b53d539368900f75f8768f251f238760224e4d8e9b25d450b5ac9a220b1eedbc8d5fd6c6267541f51c875108efe490c8a3f14ed137d435e6
SSDEEP

49152:icFdPgoYUlOeODCRL1QU5/soxzl+Es3wSF9:17UiJQNo1AEs3w

Score

10^/10

gh0strat purplefox rat rootkit trojan

Malware Config

Signatures

Detect PurpleFox Rootkit 6 IoCs

Detect PurpleFox Rootkit.

rootkit

Processes:

resource	yara_rule
behavioral1/memory/964-62-0x0000000010000000-0x00000000101A0000-memory.dmp	purplefox_rootkit
behavioral1/memory/964-71-0x0000000000400000-0x00000000005A090F-memory.dmp	purplefox_rootkit
behavioral1/memory/1500-74-0x0000000000400000-0x00000000005A090F-memory.dmp	purplefox_rootkit
behavioral1/memory/964-90-0x0000000000400000-0x00000000005A090F-memory.dmp	purplefox_rootkit
behavioral1/memory/1500-89-0x0000000000400000-0x00000000005A090F-memory.dmp	purplefox_rootkit
behavioral1/memory/908-92-0x0000000000400000-0x00000000005A090F-memory.dmp	purplefox_rootkit

Gh0st RAT payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/964-62-0x0000000010000000-0x00000000101A0000-memory.dmp	family_gh0strat
behavioral1/memory/964-71-0x0000000000400000-0x00000000005A090F-memory.dmp	family_gh0strat
behavioral1/memory/1500-74-0x0000000000400000-0x00000000005A090F-memory.dmp	family_gh0strat
behavioral1/memory/964-90-0x0000000000400000-0x00000000005A090F-memory.dmp	family_gh0strat
behavioral1/memory/1500-89-0x0000000000400000-0x00000000005A090F-memory.dmp	family_gh0strat
behavioral1/memory/908-92-0x0000000000400000-0x00000000005A090F-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
Executes dropped EXE 3 IoCs

Processes:

5431.exeAqiyq.exeAqiyq.exe

pid process

964 5431.exe
1500 Aqiyq.exe
908 Aqiyq.exe
Loads dropped DLL 1 IoCs

Processes:

640b857fd0573bf62985066188dd6585cf803e7700ee3fc98f74843dba7e2050.exe

pid process

1992 640b857fd0573bf62985066188dd6585cf803e7700ee3fc98f74843dba7e2050.exe

pid	process
964	5431.exe
1500	Aqiyq.exe
908	Aqiyq.exe

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

Aqiyq.exe

description	ioc	process
File opened (read-only)	\??\G:	Aqiyq.exe
File opened (read-only)	\??\H:	Aqiyq.exe
File opened (read-only)	\??\I:	Aqiyq.exe
File opened (read-only)	\??\K:	Aqiyq.exe
File opened (read-only)	\??\L:	Aqiyq.exe
File opened (read-only)	\??\M:	Aqiyq.exe
File opened (read-only)	\??\N:	Aqiyq.exe
File opened (read-only)	\??\F:	Aqiyq.exe
File opened (read-only)	\??\W:	Aqiyq.exe
File opened (read-only)	\??\U:	Aqiyq.exe
File opened (read-only)	\??\T:	Aqiyq.exe
File opened (read-only)	\??\V:	Aqiyq.exe
File opened (read-only)	\??\J:	Aqiyq.exe
File opened (read-only)	\??\O:	Aqiyq.exe
File opened (read-only)	\??\P:	Aqiyq.exe
File opened (read-only)	\??\S:	Aqiyq.exe
File opened (read-only)	\??\Y:	Aqiyq.exe
File opened (read-only)	\??\B:	Aqiyq.exe
File opened (read-only)	\??\Q:	Aqiyq.exe
File opened (read-only)	\??\R:	Aqiyq.exe
File opened (read-only)	\??\X:	Aqiyq.exe
File opened (read-only)	\??\Z:	Aqiyq.exe
File opened (read-only)	\??\E:	Aqiyq.exe

Drops file in System32 directory 4 IoCs

Processes:

640b857fd0573bf62985066188dd6585cf803e7700ee3fc98f74843dba7e2050.exe5431.exe

description	ioc	process
File created	C:\Windows\SysWOW64\5431.exe	640b857fd0573bf62985066188dd6585cf803e7700ee3fc98f74843dba7e2050.exe
File created	C:\Windows\SysWOW64\Aqiyq.exe	5431.exe
File opened for modification	C:\Windows\SysWOW64\Aqiyq.exe	5431.exe
File opened for modification	C:\Windows\SysWOW64\5431.exe	5431.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

640b857fd0573bf62985066188dd6585cf803e7700ee3fc98f74843dba7e2050.exe

pid	process
1992	640b857fd0573bf62985066188dd6585cf803e7700ee3fc98f74843dba7e2050.exe
1992	640b857fd0573bf62985066188dd6585cf803e7700ee3fc98f74843dba7e2050.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

Aqiyq.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	Aqiyq.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	Aqiyq.exe

Modifies data under HKEY_USERS 12 IoCs

Processes:

Aqiyq.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum	Aqiyq.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft	Aqiyq.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	Aqiyq.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	Aqiyq.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	Aqiyq.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	Aqiyq.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	Aqiyq.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	Aqiyq.exe
Key created	\REGISTRY\USER\.DEFAULT\Software	Aqiyq.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\ActiveMovie	Aqiyq.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\ActiveMovie\devenum	Aqiyq.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\ActiveMovie\devenum\Version = "7"	Aqiyq.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

1968 PING.EXE

pid	process
1968	PING.EXE

Suspicious behavior: EnumeratesProcesses 33 IoCs

Processes:

Aqiyq.exe

pid	process
908	Aqiyq.exe
908	Aqiyq.exe
908	Aqiyq.exe
908	Aqiyq.exe
908	Aqiyq.exe
908	Aqiyq.exe
908	Aqiyq.exe
908	Aqiyq.exe
908	Aqiyq.exe
908	Aqiyq.exe
908	Aqiyq.exe
908	Aqiyq.exe
908	Aqiyq.exe
908	Aqiyq.exe
908	Aqiyq.exe
908	Aqiyq.exe
908	Aqiyq.exe
908	Aqiyq.exe
908	Aqiyq.exe
908	Aqiyq.exe
908	Aqiyq.exe
908	Aqiyq.exe
908	Aqiyq.exe
908	Aqiyq.exe
908	Aqiyq.exe
908	Aqiyq.exe
908	Aqiyq.exe
908	Aqiyq.exe
908	Aqiyq.exe
908	Aqiyq.exe
908	Aqiyq.exe
908	Aqiyq.exe
908	Aqiyq.exe

Suspicious behavior: RenamesItself 1 IoCs

Processes:

640b857fd0573bf62985066188dd6585cf803e7700ee3fc98f74843dba7e2050.exe

pid process

1992 640b857fd0573bf62985066188dd6585cf803e7700ee3fc98f74843dba7e2050.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

5431.exe

description pid process

Token: SeIncBasePriorityPrivilege 964 5431.exe

description	pid	process
Token: SeIncBasePriorityPrivilege	964	5431.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

640b857fd0573bf62985066188dd6585cf803e7700ee3fc98f74843dba7e2050.exe

pid	process
1992	640b857fd0573bf62985066188dd6585cf803e7700ee3fc98f74843dba7e2050.exe
1992	640b857fd0573bf62985066188dd6585cf803e7700ee3fc98f74843dba7e2050.exe
1992	640b857fd0573bf62985066188dd6585cf803e7700ee3fc98f74843dba7e2050.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

640b857fd0573bf62985066188dd6585cf803e7700ee3fc98f74843dba7e2050.exe5431.exeAqiyq.execmd.exe

description	pid	process	target process
PID 1992 wrote to memory of 964	1992	640b857fd0573bf62985066188dd6585cf803e7700ee3fc98f74843dba7e2050.exe	5431.exe
PID 1992 wrote to memory of 964	1992	640b857fd0573bf62985066188dd6585cf803e7700ee3fc98f74843dba7e2050.exe	5431.exe
PID 1992 wrote to memory of 964	1992	640b857fd0573bf62985066188dd6585cf803e7700ee3fc98f74843dba7e2050.exe	5431.exe
PID 1992 wrote to memory of 964	1992	640b857fd0573bf62985066188dd6585cf803e7700ee3fc98f74843dba7e2050.exe	5431.exe
PID 964 wrote to memory of 1172	964	5431.exe	cmd.exe
PID 964 wrote to memory of 1172	964	5431.exe	cmd.exe
PID 964 wrote to memory of 1172	964	5431.exe	cmd.exe
PID 964 wrote to memory of 1172	964	5431.exe	cmd.exe
PID 1500 wrote to memory of 908	1500	Aqiyq.exe	Aqiyq.exe
PID 1500 wrote to memory of 908	1500	Aqiyq.exe	Aqiyq.exe
PID 1500 wrote to memory of 908	1500	Aqiyq.exe	Aqiyq.exe
PID 1500 wrote to memory of 908	1500	Aqiyq.exe	Aqiyq.exe
PID 1172 wrote to memory of 1968	1172	cmd.exe	PING.EXE
PID 1172 wrote to memory of 1968	1172	cmd.exe	PING.EXE
PID 1172 wrote to memory of 1968	1172	cmd.exe	PING.EXE
PID 1172 wrote to memory of 1968	1172	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\640b857fd0573bf62985066188dd6585cf803e7700ee3fc98f74843dba7e2050.exe
"C:\Users\Admin\AppData\Local\Temp\640b857fd0573bf62985066188dd6585cf803e7700ee3fc98f74843dba7e2050.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: RenamesItself
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1992

C:\Windows\SysWOW64\5431.exe
C:\Windows\System32\5431.exe
2⤵
- Executes dropped EXE
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:964

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ping -n 2 127.0.0.1 > nul && del C:\Windows\SysWOW64\5431.exe > nul
3⤵
- Suspicious use of WriteProcessMemory
PID:1172

C:\Windows\SysWOW64\PING.EXE
ping -n 2 127.0.0.1
4⤵
- Runs ping.exe
PID:1968

C:\Windows\SysWOW64\Aqiyq.exe
C:\Windows\SysWOW64\Aqiyq.exe -auto
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1500

C:\Windows\SysWOW64\Aqiyq.exe
C:\Windows\SysWOW64\Aqiyq.exe -acsi
2⤵
- Executes dropped EXE
- Enumerates connected drives
- Checks processor information in registry
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
PID:908

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

Peripheral Device Discovery

1

T1120

System Information Discovery

2

T1082

Remote System Discovery

1

T1018

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Windows\SysWOW64\5431.exe
Filesize
706KB

MD5
50d46fc90ba5281eb40dc8fb43131423

SHA1
2ad97ea7fb904f06a1d1835218dfc41933910328

SHA256
d75c97a7e2f8dd4f58093177457fbb95d3a66e74bc4af34176a0330ac0f0bcf1

SHA512
cc1388cebc00a0fdbe276ed63d7cfcba1db4cd549cb989a3ab80bb9fec261bd63471232918fc796a875f21b9bdf5ee5eaa7a05299b1752efd1f7d362705fb6d7

Download Submit
C:\Windows\SysWOW64\5431.exe
Filesize
706KB

MD5
50d46fc90ba5281eb40dc8fb43131423

SHA1
2ad97ea7fb904f06a1d1835218dfc41933910328

SHA256
d75c97a7e2f8dd4f58093177457fbb95d3a66e74bc4af34176a0330ac0f0bcf1

SHA512
cc1388cebc00a0fdbe276ed63d7cfcba1db4cd549cb989a3ab80bb9fec261bd63471232918fc796a875f21b9bdf5ee5eaa7a05299b1752efd1f7d362705fb6d7

Download Submit
C:\Windows\SysWOW64\Aqiyq.exe
Filesize
706KB

MD5
50d46fc90ba5281eb40dc8fb43131423

SHA1
2ad97ea7fb904f06a1d1835218dfc41933910328

SHA256
d75c97a7e2f8dd4f58093177457fbb95d3a66e74bc4af34176a0330ac0f0bcf1

SHA512
cc1388cebc00a0fdbe276ed63d7cfcba1db4cd549cb989a3ab80bb9fec261bd63471232918fc796a875f21b9bdf5ee5eaa7a05299b1752efd1f7d362705fb6d7

Download Submit
C:\Windows\SysWOW64\Aqiyq.exe
Filesize
706KB

MD5
50d46fc90ba5281eb40dc8fb43131423

SHA1
2ad97ea7fb904f06a1d1835218dfc41933910328

SHA256
d75c97a7e2f8dd4f58093177457fbb95d3a66e74bc4af34176a0330ac0f0bcf1

SHA512
cc1388cebc00a0fdbe276ed63d7cfcba1db4cd549cb989a3ab80bb9fec261bd63471232918fc796a875f21b9bdf5ee5eaa7a05299b1752efd1f7d362705fb6d7

Download Submit
C:\Windows\SysWOW64\Aqiyq.exe
Filesize
706KB

MD5
50d46fc90ba5281eb40dc8fb43131423

SHA1
2ad97ea7fb904f06a1d1835218dfc41933910328

SHA256
d75c97a7e2f8dd4f58093177457fbb95d3a66e74bc4af34176a0330ac0f0bcf1

SHA512
cc1388cebc00a0fdbe276ed63d7cfcba1db4cd549cb989a3ab80bb9fec261bd63471232918fc796a875f21b9bdf5ee5eaa7a05299b1752efd1f7d362705fb6d7

Download Submit
\Windows\SysWOW64\5431.exe
Filesize
706KB

MD5
50d46fc90ba5281eb40dc8fb43131423

SHA1
2ad97ea7fb904f06a1d1835218dfc41933910328

SHA256
d75c97a7e2f8dd4f58093177457fbb95d3a66e74bc4af34176a0330ac0f0bcf1

SHA512
cc1388cebc00a0fdbe276ed63d7cfcba1db4cd549cb989a3ab80bb9fec261bd63471232918fc796a875f21b9bdf5ee5eaa7a05299b1752efd1f7d362705fb6d7

Download Submit
memory/908-92-0x0000000000400000-0x00000000005A090F-memory.dmp

Filesize
1.6MB

Download
memory/908-80-0x0000000000000000-mapping.dmp

Download
memory/964-71-0x0000000000400000-0x00000000005A090F-memory.dmp

Filesize
1.6MB

Download
memory/964-62-0x0000000010000000-0x00000000101A0000-memory.dmp

Filesize
1.6MB

Download
memory/964-58-0x0000000000000000-mapping.dmp

Download
memory/964-90-0x0000000000400000-0x00000000005A090F-memory.dmp

Filesize
1.6MB

Download
memory/1172-79-0x0000000000000000-mapping.dmp

Download
memory/1500-74-0x0000000000400000-0x00000000005A090F-memory.dmp

Filesize
1.6MB

Download
memory/1500-89-0x0000000000400000-0x00000000005A090F-memory.dmp

Filesize
1.6MB

Download
memory/1968-91-0x0000000000000000-mapping.dmp

Download
memory/1992-54-0x0000000075D11000-0x0000000075D13000-memory.dmp

Filesize
8KB

Download
memory/1992-57-0x0000000011D90000-0x0000000011F31000-memory.dmp

Filesize
1.6MB

Download
memory/1992-55-0x0000000000400000-0x0000000000944000-memory.dmp

Filesize
5.3MB

Download
memory/1992-93-0x0000000000400000-0x0000000000944000-memory.dmp

Filesize
5.3MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads