gh0strat | 4976c7eba97b1233382ba0fd8b4c70eff1b7666544b99a9047ac8ad16192117f

General

Target

4976c7eba97b1233382ba0fd8b4c70eff1b7666544b99a9047ac8ad16192117f.exe
Size

4.3MB
MD5

562ebdd4d77510cd7f438b9e42ee6fa2
SHA1

c938f07a166342ddc4fbc18a168119796cad4bdd
SHA256

4976c7eba97b1233382ba0fd8b4c70eff1b7666544b99a9047ac8ad16192117f
SHA512

8f3f8c7574674b6821813da94acca0c52cf5c233a07c5b804d6c1196faa79cb5fb3f072a5fa230474d61d06fec3c3a653e4df995cf88575c8f8dc84372f6fa6c
SSDEEP

98304:bO0Amq5trnG9N96LJxiqJJJBJJsxDJBJJsxDJ:UrnG9Pur1JsxD1JsxD

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
behavioral1/memory/2372-0-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral1/memory/2656-19-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 2 IoCs

resource	yara_rule
behavioral1/memory/2372-0-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral1/memory/2656-19-0x0000000010000000-0x000000001019F000-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	Ghxya.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"	Ghxya.exe

Deletes itself 1 IoCs

pid	Process
1440	cmd.exe

Executes dropped EXE 2 IoCs

pid	Process
776	Ghxya.exe
2656	Ghxya.exe

Loads dropped DLL 1 IoCs

pid	Process
776	Ghxya.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Ghxya.exe	4976c7eba97b1233382ba0fd8b4c70eff1b7666544b99a9047ac8ad16192117f.exe
File opened for modification	C:\Windows\SysWOW64\Ghxya.exe	4976c7eba97b1233382ba0fd8b4c70eff1b7666544b99a9047ac8ad16192117f.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	4976c7eba97b1233382ba0fd8b4c70eff1b7666544b99a9047ac8ad16192117f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Ghxya.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Ghxya.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
1440	cmd.exe
2504	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2504	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
2656	Ghxya.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2372	4976c7eba97b1233382ba0fd8b4c70eff1b7666544b99a9047ac8ad16192117f.exe
Token: SeLoadDriverPrivilege	2656	Ghxya.exe
Token: 33	2656	Ghxya.exe
Token: SeIncBasePriorityPrivilege	2656	Ghxya.exe
Token: 33	2656	Ghxya.exe
Token: SeIncBasePriorityPrivilege	2656	Ghxya.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 776 wrote to memory of 2656	776	Ghxya.exe	32
PID 776 wrote to memory of 2656	776	Ghxya.exe	32
PID 776 wrote to memory of 2656	776	Ghxya.exe	32
PID 776 wrote to memory of 2656	776	Ghxya.exe	32
PID 2372 wrote to memory of 1440	2372	4976c7eba97b1233382ba0fd8b4c70eff1b7666544b99a9047ac8ad16192117f.exe	31
PID 2372 wrote to memory of 1440	2372	4976c7eba97b1233382ba0fd8b4c70eff1b7666544b99a9047ac8ad16192117f.exe	31
PID 2372 wrote to memory of 1440	2372	4976c7eba97b1233382ba0fd8b4c70eff1b7666544b99a9047ac8ad16192117f.exe	31
PID 2372 wrote to memory of 1440	2372	4976c7eba97b1233382ba0fd8b4c70eff1b7666544b99a9047ac8ad16192117f.exe	31
PID 1440 wrote to memory of 2504	1440	cmd.exe	34
PID 1440 wrote to memory of 2504	1440	cmd.exe	34
PID 1440 wrote to memory of 2504	1440	cmd.exe	34
PID 1440 wrote to memory of 2504	1440	cmd.exe	34

C:\Users\Admin\AppData\Local\Temp\4976c7eba97b1233382ba0fd8b4c70eff1b7666544b99a9047ac8ad16192117f.exe
"C:\Users\Admin\AppData\Local\Temp\4976c7eba97b1233382ba0fd8b4c70eff1b7666544b99a9047ac8ad16192117f.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2372
- 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\4976C7~1.EXE > nul
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:1440
- - 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:2504

C:\Windows\SysWOW64\Ghxya.exe
C:\Windows\SysWOW64\Ghxya.exe -auto
1⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:776
- C:\Windows\SysWOW64\Ghxya.exe
  C:\Windows\SysWOW64\Ghxya.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:2656

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\Ghxya.exe

Filesize
15.3MB

MD5
1392f26d0e45aa0fb778e0116a7602a8

SHA1
b13d8b306d12fc5b7eeb2d2b521a72615e6eda19

SHA256
221a97b2e78e020e4460180a63324ba82bddd862ec123904b95afff91dd5a5d5

SHA512
4d9201a8b57e53bc285e6f29fb47211c4852141ea3d6a4465d3fff1451fc7e141bc4f268fad6ed7526414cb1f319ac823d81da8da96c4f9390ff2d6cdb6388b9

Download Submit
memory/2372-0-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/2656-19-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads