gh0strat | 4f75939dcf44c5cd789ac39738857de632bb1e0ffb618a00d28ba177da1472e9

General

Target

4f75939dcf44c5cd789ac39738857de632bb1e0ffb618a00d28ba177da1472e9.exe
Size

1.3MB
MD5

cd70ea603080672fa051df44accd8e0c
SHA1

f63da897e934b9a60d732cfa97a4ca0d30a427e7
SHA256

4f75939dcf44c5cd789ac39738857de632bb1e0ffb618a00d28ba177da1472e9
SHA512

b75b5e3c8b85707a7e817dbdfb4403ae77722cb47e8867cc803e983827ecc4d68ac1ca7198cf9ec371ef61160067f9efa18bd3ac14125fe4f6e9e7d29a001292
SSDEEP

24576:5OyHutimZ9VSly2hVvHW6qMnSbTBBhBMNt:0HPkVOBTK

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/852-0-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral2/memory/4492-10-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 2 IoCs

resource	yara_rule
behavioral2/memory/852-0-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral2/memory/4492-10-0x0000000010000000-0x000000001019F000-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	Meume.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"	Meume.exe

Executes dropped EXE 2 IoCs

pid	Process
4492	Meume.exe
5088	Meume.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\AppPatch\Meume.exe	4f75939dcf44c5cd789ac39738857de632bb1e0ffb618a00d28ba177da1472e9.exe
File opened for modification	C:\Program Files (x86)\AppPatch\Meume.exe	4f75939dcf44c5cd789ac39738857de632bb1e0ffb618a00d28ba177da1472e9.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	4f75939dcf44c5cd789ac39738857de632bb1e0ffb618a00d28ba177da1472e9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Meume.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Meume.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
3116	cmd.exe
3844	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3844	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
5088	Meume.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	852	4f75939dcf44c5cd789ac39738857de632bb1e0ffb618a00d28ba177da1472e9.exe
Token: SeLoadDriverPrivilege	5088	Meume.exe
Token: 33	5088	Meume.exe
Token: SeIncBasePriorityPrivilege	5088	Meume.exe
Token: 33	5088	Meume.exe
Token: SeIncBasePriorityPrivilege	5088	Meume.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4492 wrote to memory of 5088	4492	Meume.exe	83
PID 4492 wrote to memory of 5088	4492	Meume.exe	83
PID 4492 wrote to memory of 5088	4492	Meume.exe	83
PID 852 wrote to memory of 3116	852	4f75939dcf44c5cd789ac39738857de632bb1e0ffb618a00d28ba177da1472e9.exe	84
PID 852 wrote to memory of 3116	852	4f75939dcf44c5cd789ac39738857de632bb1e0ffb618a00d28ba177da1472e9.exe	84
PID 852 wrote to memory of 3116	852	4f75939dcf44c5cd789ac39738857de632bb1e0ffb618a00d28ba177da1472e9.exe	84
PID 3116 wrote to memory of 3844	3116	cmd.exe	86
PID 3116 wrote to memory of 3844	3116	cmd.exe	86
PID 3116 wrote to memory of 3844	3116	cmd.exe	86

C:\Users\Admin\AppData\Local\Temp\4f75939dcf44c5cd789ac39738857de632bb1e0ffb618a00d28ba177da1472e9.exe
"C:\Users\Admin\AppData\Local\Temp\4f75939dcf44c5cd789ac39738857de632bb1e0ffb618a00d28ba177da1472e9.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:852
- 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\4F7593~1.EXE > nul
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:3116
- - 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:3844

C:\Program Files (x86)\AppPatch\Meume.exe
"C:\Program Files (x86)\AppPatch\Meume.exe" -auto
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4492
- C:\Program Files (x86)\AppPatch\Meume.exe
  "C:\Program Files (x86)\AppPatch\Meume.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:5088

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:\Program Files (x86)\AppPatch\Meume.exe

Filesize
1.3MB

MD5
cd70ea603080672fa051df44accd8e0c

SHA1
f63da897e934b9a60d732cfa97a4ca0d30a427e7

SHA256
4f75939dcf44c5cd789ac39738857de632bb1e0ffb618a00d28ba177da1472e9

SHA512
b75b5e3c8b85707a7e817dbdfb4403ae77722cb47e8867cc803e983827ecc4d68ac1ca7198cf9ec371ef61160067f9efa18bd3ac14125fe4f6e9e7d29a001292

Download Submit
memory/852-0-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/4492-10-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads