gh0strat | 6631d06b0d989ac6981c6317b0191123f2d1f726a4e09adf01f675383b230ae2

General

Target

6631d06b0d989ac6981c6317b0191123f2d1f726a4e09adf01f675383b230ae2.exe
Size

4.3MB
MD5

520cf306a310b1cf19de4696e5f02907
SHA1

27902c8bb532d52de80d14bb4da5cb940204c861
SHA256

6631d06b0d989ac6981c6317b0191123f2d1f726a4e09adf01f675383b230ae2
SHA512

844d1fceeff06cfa742315526be0600b997ea6282e5c75d6d861e9a7e78695bc1ebcd7a85b67170e492b5804489b4602a8a4a54842fb114341c3a0a815570364
SSDEEP

49152:E09XJt4HIN2H2tFvduyS6a5bXsPNIULkmp1/j6AeXZG7wmpvGF1IP9z5WuHC4O8w:pZJt4HINy2Lk6sbXsPN5kiQaZ56

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
behavioral1/memory/1628-9-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/1628-7-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/1628-8-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2236-18-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2832-66-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2832-70-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2236-65-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2832-71-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 8 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1628-9-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/1628-7-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/1628-8-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2236-18-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2832-66-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2832-70-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2236-65-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2832-71-0x0000000010000000-0x00000000101B6000-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:

TXPlatforn.exe

description ioc process

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

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

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

TXPlatforn.exe

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

Executes dropped EXE 4 IoCs

Processes:

RVN.exeTXPlatforn.exeTXPlatforn.exeHD_6631d06b0d989ac6981c6317b0191123f2d1f726a4e09adf01f675383b230ae2.exe

pid process

1628 RVN.exe
2236 TXPlatforn.exe
2832 TXPlatforn.exe
2556 HD_6631d06b0d989ac6981c6317b0191123f2d1f726a4e09adf01f675383b230ae2.exe

pid	process
1628	RVN.exe
2236	TXPlatforn.exe
2832	TXPlatforn.exe
2556	HD_6631d06b0d989ac6981c6317b0191123f2d1f726a4e09adf01f675383b230ae2.exe

Loads dropped DLL 3 IoCs

Processes:

6631d06b0d989ac6981c6317b0191123f2d1f726a4e09adf01f675383b230ae2.exeTXPlatforn.exe

pid	process
1912	6631d06b0d989ac6981c6317b0191123f2d1f726a4e09adf01f675383b230ae2.exe
2236	TXPlatforn.exe
1912	6631d06b0d989ac6981c6317b0191123f2d1f726a4e09adf01f675383b230ae2.exe

UPX packed file 9 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/1628-5-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1628-9-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1628-7-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1628-8-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2236-18-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2832-66-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2832-70-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2236-65-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2832-71-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

Drops file in System32 directory 2 IoCs

Processes:

RVN.exe

description ioc process

File created C:\Windows\SysWOW64\TXPlatforn.exe RVN.exe
File opened for modification C:\Windows\SysWOW64\TXPlatforn.exe RVN.exe

description	ioc	process
File created	C:\Windows\SysWOW64\TXPlatforn.exe	RVN.exe
File opened for modification	C:\Windows\SysWOW64\TXPlatforn.exe	RVN.exe

Drops file in Program Files directory 4 IoCs

Processes:

6631d06b0d989ac6981c6317b0191123f2d1f726a4e09adf01f675383b230ae2.exe

description	ioc	process
File created	C:\Program Files (x86)\Google\Chrome\Application\chrome.exe	6631d06b0d989ac6981c6317b0191123f2d1f726a4e09adf01f675383b230ae2.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc.exe	6631d06b0d989ac6981c6317b0191123f2d1f726a4e09adf01f675383b230ae2.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe	6631d06b0d989ac6981c6317b0191123f2d1f726a4e09adf01f675383b230ae2.exe
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.exe	6631d06b0d989ac6981c6317b0191123f2d1f726a4e09adf01f675383b230ae2.exe

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

System Information Discovery
T1082
Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

2692 PING.EXE
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

6631d06b0d989ac6981c6317b0191123f2d1f726a4e09adf01f675383b230ae2.exe

pid process

1912 6631d06b0d989ac6981c6317b0191123f2d1f726a4e09adf01f675383b230ae2.exe
Suspicious behavior: LoadsDriver 1 IoCs

Processes:

TXPlatforn.exe

pid process

2832 TXPlatforn.exe

pid	process
2692	PING.EXE

pid	process
2832	TXPlatforn.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

RVN.exeTXPlatforn.exe

description	pid	process
Token: SeIncBasePriorityPrivilege	1628	RVN.exe
Token: SeLoadDriverPrivilege	2832	TXPlatforn.exe
Token: 33	2832	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	2832	TXPlatforn.exe
Token: 33	2832	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	2832	TXPlatforn.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

6631d06b0d989ac6981c6317b0191123f2d1f726a4e09adf01f675383b230ae2.exe

pid	process
1912	6631d06b0d989ac6981c6317b0191123f2d1f726a4e09adf01f675383b230ae2.exe
1912	6631d06b0d989ac6981c6317b0191123f2d1f726a4e09adf01f675383b230ae2.exe

Suspicious use of WriteProcessMemory 26 IoCs

Processes:

6631d06b0d989ac6981c6317b0191123f2d1f726a4e09adf01f675383b230ae2.exeRVN.exeTXPlatforn.execmd.exe

description	pid	process	target process
PID 1912 wrote to memory of 1628	1912	6631d06b0d989ac6981c6317b0191123f2d1f726a4e09adf01f675383b230ae2.exe	RVN.exe
PID 1912 wrote to memory of 1628	1912	6631d06b0d989ac6981c6317b0191123f2d1f726a4e09adf01f675383b230ae2.exe	RVN.exe
PID 1912 wrote to memory of 1628	1912	6631d06b0d989ac6981c6317b0191123f2d1f726a4e09adf01f675383b230ae2.exe	RVN.exe
PID 1912 wrote to memory of 1628	1912	6631d06b0d989ac6981c6317b0191123f2d1f726a4e09adf01f675383b230ae2.exe	RVN.exe
PID 1912 wrote to memory of 1628	1912	6631d06b0d989ac6981c6317b0191123f2d1f726a4e09adf01f675383b230ae2.exe	RVN.exe
PID 1912 wrote to memory of 1628	1912	6631d06b0d989ac6981c6317b0191123f2d1f726a4e09adf01f675383b230ae2.exe	RVN.exe
PID 1912 wrote to memory of 1628	1912	6631d06b0d989ac6981c6317b0191123f2d1f726a4e09adf01f675383b230ae2.exe	RVN.exe
PID 1628 wrote to memory of 2636	1628	RVN.exe	cmd.exe
PID 1628 wrote to memory of 2636	1628	RVN.exe	cmd.exe
PID 1628 wrote to memory of 2636	1628	RVN.exe	cmd.exe
PID 1628 wrote to memory of 2636	1628	RVN.exe	cmd.exe
PID 2236 wrote to memory of 2832	2236	TXPlatforn.exe	TXPlatforn.exe
PID 2236 wrote to memory of 2832	2236	TXPlatforn.exe	TXPlatforn.exe
PID 2236 wrote to memory of 2832	2236	TXPlatforn.exe	TXPlatforn.exe
PID 2236 wrote to memory of 2832	2236	TXPlatforn.exe	TXPlatforn.exe
PID 2236 wrote to memory of 2832	2236	TXPlatforn.exe	TXPlatforn.exe
PID 2236 wrote to memory of 2832	2236	TXPlatforn.exe	TXPlatforn.exe
PID 2236 wrote to memory of 2832	2236	TXPlatforn.exe	TXPlatforn.exe
PID 1912 wrote to memory of 2556	1912	6631d06b0d989ac6981c6317b0191123f2d1f726a4e09adf01f675383b230ae2.exe	HD_6631d06b0d989ac6981c6317b0191123f2d1f726a4e09adf01f675383b230ae2.exe
PID 1912 wrote to memory of 2556	1912	6631d06b0d989ac6981c6317b0191123f2d1f726a4e09adf01f675383b230ae2.exe	HD_6631d06b0d989ac6981c6317b0191123f2d1f726a4e09adf01f675383b230ae2.exe
PID 1912 wrote to memory of 2556	1912	6631d06b0d989ac6981c6317b0191123f2d1f726a4e09adf01f675383b230ae2.exe	HD_6631d06b0d989ac6981c6317b0191123f2d1f726a4e09adf01f675383b230ae2.exe
PID 1912 wrote to memory of 2556	1912	6631d06b0d989ac6981c6317b0191123f2d1f726a4e09adf01f675383b230ae2.exe	HD_6631d06b0d989ac6981c6317b0191123f2d1f726a4e09adf01f675383b230ae2.exe
PID 2636 wrote to memory of 2692	2636	cmd.exe	PING.EXE
PID 2636 wrote to memory of 2692	2636	cmd.exe	PING.EXE
PID 2636 wrote to memory of 2692	2636	cmd.exe	PING.EXE
PID 2636 wrote to memory of 2692	2636	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\6631d06b0d989ac6981c6317b0191123f2d1f726a4e09adf01f675383b230ae2.exe
"C:\Users\Admin\AppData\Local\Temp\6631d06b0d989ac6981c6317b0191123f2d1f726a4e09adf01f675383b230ae2.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1912

C:\Users\Admin\AppData\Local\Temp\RVN.exe
C:\Users\Admin\AppData\Local\Temp\\RVN.exe
2⤵
- Executes dropped EXE
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1628

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\RVN.exe > nul
3⤵
- Suspicious use of WriteProcessMemory
PID:2636

C:\Windows\SysWOW64\PING.EXE
ping -n 2 127.0.0.1
4⤵
- Runs ping.exe
PID:2692

C:\Users\Admin\AppData\Local\Temp\HD_6631d06b0d989ac6981c6317b0191123f2d1f726a4e09adf01f675383b230ae2.exe
C:\Users\Admin\AppData\Local\Temp\HD_6631d06b0d989ac6981c6317b0191123f2d1f726a4e09adf01f675383b230ae2.exe
2⤵
- Executes dropped EXE
PID:2556

C:\Windows\SysWOW64\TXPlatforn.exe
C:\Windows\SysWOW64\TXPlatforn.exe -auto
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2236

C:\Windows\SysWOW64\TXPlatforn.exe
C:\Windows\SysWOW64\TXPlatforn.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:2832

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Remote System Discovery

1

T1018

System Information Discovery

1

T1082

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
1.2MB

MD5
188770cae548b3e656b435547b864df0

SHA1
e2ce3871bf9b498a97f2af8282319645185faaf0

SHA256
0fa124554fa23f5faa2cc009d071a1df1bea8d895da8653e4a9b64b9c09cdee3

SHA512
b1848b30a0fae482e9a99d39a25ad5696fb9f09cd8e0a5b101f65e70e4da64b40c4dadc37d977aa70b1ae9825b9a9862eb4ff4bb893e944f4fc0787bbd1f7fb0

Download Submit
\Users\Admin\AppData\Local\Temp\HD_6631d06b0d989ac6981c6317b0191123f2d1f726a4e09adf01f675383b230ae2.exe

Filesize
3.1MB

MD5
fb083acd60fe5c3156dc25442be815e3

SHA1
61df59b8f3ebd8b3d29ca3aedc4995e23cacf6d8

SHA256
f130b3789962d5c8b59aa250d6f26ad5945928f3905b32bf65aa7bd30348a794

SHA512
7147337d2c1006bb15cfa967c9eea6826b63c8d343f866e7454d7368d25019f39e52cf179500810834244c3ca9644d6c0df0b2c3128a9051e9ee6b428fa926f6

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

Filesize
377KB

MD5
80ade1893dec9cab7f2e63538a464fcc

SHA1
c06614da33a65eddb506db00a124a3fc3f5be02e

SHA256
57a920389c044e3f5cf93dabff67070b4511e79779b6f874e08f92d8b0d7afbd

SHA512
fffd4f3fccb5301b3c7a5b3bd92747f31549fbd9d0803fe5d502d1bb0ef979140988718c2ee1406ed3e755790d275185e120a56cbcb5ed2eadf62b5cdbfc4cc4

Download Submit
memory/1628-5-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1628-9-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1628-7-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1628-8-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2236-18-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2236-65-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2832-66-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2832-70-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2832-71-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads