gh0strat | 550c6315dff85c84ca551e9c4880526f3bf436917ccfa238cf848e8f70e3bd12

General

Target

550c6315dff85c84ca551e9c4880526f3bf436917ccfa238cf848e8f70e3bd12.exe
Size

1.3MB
MD5

64fe7f4a0bcd9fa4b00c2d26171f9525
SHA1

8423b0333775cc752f35df50ce7f1178a34037dd
SHA256

550c6315dff85c84ca551e9c4880526f3bf436917ccfa238cf848e8f70e3bd12
SHA512

5ca4793562312c8df2779eb7c08a012408b4c13f63ef71adfd722858bc3351ff94ba38a340998d9ef5cff45ab4be218ed6dbdac24f6f92bf318fb07c0b92e48a
SSDEEP

24576:dOyHutimZ9VSly2hVvHW6qMnSbTBBhBMNR:QHPkVOBTK

Score

10^/10

gh0strat purplefox discovery persistence rat rootkit trojan

Malware Config

Signatures

Detect PurpleFox Rootkit 2 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral2/memory/1848-0-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral2/memory/636-10-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 2 IoCs

resource	yara_rule
behavioral2/memory/1848-0-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral2/memory/636-10-0x0000000010000000-0x000000001019F000-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	Gwxph.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"	Gwxph.exe

Executes dropped EXE 2 IoCs

pid	Process
636	Gwxph.exe
3956	Gwxph.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Gwxph.exe	550c6315dff85c84ca551e9c4880526f3bf436917ccfa238cf848e8f70e3bd12.exe
File opened for modification	C:\Windows\SysWOW64\Gwxph.exe	550c6315dff85c84ca551e9c4880526f3bf436917ccfa238cf848e8f70e3bd12.exe

System Location Discovery: System Language Discovery 1 TTPs 5 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	550c6315dff85c84ca551e9c4880526f3bf436917ccfa238cf848e8f70e3bd12.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Gwxph.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Gwxph.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.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
4728	cmd.exe
4920	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4920	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
3956	Gwxph.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	1848	550c6315dff85c84ca551e9c4880526f3bf436917ccfa238cf848e8f70e3bd12.exe
Token: SeLoadDriverPrivilege	3956	Gwxph.exe
Token: 33	3956	Gwxph.exe
Token: SeIncBasePriorityPrivilege	3956	Gwxph.exe
Token: 33	3956	Gwxph.exe
Token: SeIncBasePriorityPrivilege	3956	Gwxph.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1848 wrote to memory of 4728	1848	550c6315dff85c84ca551e9c4880526f3bf436917ccfa238cf848e8f70e3bd12.exe	84
PID 1848 wrote to memory of 4728	1848	550c6315dff85c84ca551e9c4880526f3bf436917ccfa238cf848e8f70e3bd12.exe	84
PID 1848 wrote to memory of 4728	1848	550c6315dff85c84ca551e9c4880526f3bf436917ccfa238cf848e8f70e3bd12.exe	84
PID 636 wrote to memory of 3956	636	Gwxph.exe	85
PID 636 wrote to memory of 3956	636	Gwxph.exe	85
PID 636 wrote to memory of 3956	636	Gwxph.exe	85
PID 4728 wrote to memory of 4920	4728	cmd.exe	87
PID 4728 wrote to memory of 4920	4728	cmd.exe	87
PID 4728 wrote to memory of 4920	4728	cmd.exe	87

C:\Users\Admin\AppData\Local\Temp\550c6315dff85c84ca551e9c4880526f3bf436917ccfa238cf848e8f70e3bd12.exe
"C:\Users\Admin\AppData\Local\Temp\550c6315dff85c84ca551e9c4880526f3bf436917ccfa238cf848e8f70e3bd12.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1848
- 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\550C63~1.EXE > nul
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:4728
- - C:\Windows\SysWOW64\PING.EXE
    ping -n 2 127.0.0.1
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:4920

C:\Windows\SysWOW64\Gwxph.exe
C:\Windows\SysWOW64\Gwxph.exe -auto
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:636
- C:\Windows\SysWOW64\Gwxph.exe
  C:\Windows\SysWOW64\Gwxph.exe -acsi
  2⤵
  - Drops file in Drivers directory
  - Sets service image path in registry
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: LoadsDriver
  - Suspicious use of AdjustPrivilegeToken
  PID:3956

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 Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\Gwxph.exe

Filesize
1.3MB

MD5
64fe7f4a0bcd9fa4b00c2d26171f9525

SHA1
8423b0333775cc752f35df50ce7f1178a34037dd

SHA256
550c6315dff85c84ca551e9c4880526f3bf436917ccfa238cf848e8f70e3bd12

SHA512
5ca4793562312c8df2779eb7c08a012408b4c13f63ef71adfd722858bc3351ff94ba38a340998d9ef5cff45ab4be218ed6dbdac24f6f92bf318fb07c0b92e48a

Download Submit
memory/636-10-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/1848-0-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads