gh0strat | cbf36077e9784a1988192458d2576e27cf73cdca1b8c24c513ea4b4ea4aa4d63

General

Target

cbf36077e9784a1988192458d2576e27cf73cdca1b8c24c513ea4b4ea4aa4d63.exe
Size

1.5MB
MD5

ac8b50bb675dad257ce3ca9d35d70ea8
SHA1

b6df16f4a6c55129182b6982e69fa476c74272c1
SHA256

cbf36077e9784a1988192458d2576e27cf73cdca1b8c24c513ea4b4ea4aa4d63
SHA512

5f6cec34ff23bc51eb385b0374d8b52bfbef78e5fe1c8ce2b759c5965f5b03798adb331301a6e21ed87c459f8e826fe11444985f46e2f29f20df98bb8352b256
SSDEEP

24576:VOyHutimZ9VSly2hVvHW6qMnSbTBBhBMNYuID:IHPkVOBTKRC

Score

10^/10

gh0strat purplefox discovery persistence rat rootkit trojan

Malware Config

Signatures

Detect PurpleFox Rootkit 3 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral1/memory/3940-0-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral1/memory/8-10-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral1/memory/4608-18-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 3 IoCs

resource	yara_rule
behavioral1/memory/3940-0-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral1/memory/8-10-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral1/memory/4608-18-0x0000000010000000-0x000000001019F000-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	XOX CPL MAIN.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"	XOX CPL MAIN.exe

Executes dropped EXE 2 IoCs

pid	Process
8	XOX CPL MAIN.exe
4608	XOX CPL MAIN.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\XOX CPL MAIN.exe	cbf36077e9784a1988192458d2576e27cf73cdca1b8c24c513ea4b4ea4aa4d63.exe
File opened for modification	C:\Windows\SysWOW64\XOX CPL MAIN.exe	cbf36077e9784a1988192458d2576e27cf73cdca1b8c24c513ea4b4ea4aa4d63.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	XOX CPL MAIN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cbf36077e9784a1988192458d2576e27cf73cdca1b8c24c513ea4b4ea4aa4d63.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	XOX CPL MAIN.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
3068	cmd.exe
3960	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3960	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
4608	XOX CPL MAIN.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	3940	cbf36077e9784a1988192458d2576e27cf73cdca1b8c24c513ea4b4ea4aa4d63.exe
Token: SeLoadDriverPrivilege	4608	XOX CPL MAIN.exe
Token: 33	4608	XOX CPL MAIN.exe
Token: SeIncBasePriorityPrivilege	4608	XOX CPL MAIN.exe
Token: 33	4608	XOX CPL MAIN.exe
Token: SeIncBasePriorityPrivilege	4608	XOX CPL MAIN.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3940 wrote to memory of 3068	3940	cbf36077e9784a1988192458d2576e27cf73cdca1b8c24c513ea4b4ea4aa4d63.exe	87
PID 3940 wrote to memory of 3068	3940	cbf36077e9784a1988192458d2576e27cf73cdca1b8c24c513ea4b4ea4aa4d63.exe	87
PID 3940 wrote to memory of 3068	3940	cbf36077e9784a1988192458d2576e27cf73cdca1b8c24c513ea4b4ea4aa4d63.exe	87
PID 8 wrote to memory of 4608	8	XOX CPL MAIN.exe	88
PID 8 wrote to memory of 4608	8	XOX CPL MAIN.exe	88
PID 8 wrote to memory of 4608	8	XOX CPL MAIN.exe	88
PID 3068 wrote to memory of 3960	3068	cmd.exe	91
PID 3068 wrote to memory of 3960	3068	cmd.exe	91
PID 3068 wrote to memory of 3960	3068	cmd.exe	91

C:\Users\Admin\AppData\Local\Temp\cbf36077e9784a1988192458d2576e27cf73cdca1b8c24c513ea4b4ea4aa4d63.exe
"C:\Users\Admin\AppData\Local\Temp\cbf36077e9784a1988192458d2576e27cf73cdca1b8c24c513ea4b4ea4aa4d63.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3940
- 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\CBF360~1.EXE > nul
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:3068
- - 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:3960

C:\Windows\SysWOW64\XOX CPL MAIN.exe
"C:\Windows\SysWOW64\XOX CPL MAIN.exe" -auto
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:8
- C:\Windows\SysWOW64\XOX CPL MAIN.exe
  "C:\Windows\SysWOW64\XOX CPL MAIN.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:4608

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\XOX CPL MAIN.exe

Filesize
1.5MB

MD5
ac8b50bb675dad257ce3ca9d35d70ea8

SHA1
b6df16f4a6c55129182b6982e69fa476c74272c1

SHA256
cbf36077e9784a1988192458d2576e27cf73cdca1b8c24c513ea4b4ea4aa4d63

SHA512
5f6cec34ff23bc51eb385b0374d8b52bfbef78e5fe1c8ce2b759c5965f5b03798adb331301a6e21ed87c459f8e826fe11444985f46e2f29f20df98bb8352b256

Download Submit
memory/8-10-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/3940-0-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/4608-18-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads