gh0strat | e51d7e8517b99977be84d55f0be6f8ecf2994ddc180a94f838d68bc395c93789

General

Target

e51d7e8517b99977be84d55f0be6f8ecf2994ddc180a94f838d68bc395c93789.exe
Size

1.3MB
MD5

1791c919dbd852e46dd5e0471777aa1d
SHA1

e0a1b5667d3a67e489f6a551f100b50c43b75f41
SHA256

e51d7e8517b99977be84d55f0be6f8ecf2994ddc180a94f838d68bc395c93789
SHA512

93dcebc3da28cb8591cb25d0edcb248b2790e58ab305e4b496932566606f993744d6e566e192a8f06f4f7f34ab7bc0688d4670d94cbf35e59a69d47007573b65
SSDEEP

24576:dOyHutimZ9VSly2hVvHW6qMnSbTBBhBMNm: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
behavioral1/memory/2816-0-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral1/memory/1732-19-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 2 IoCs

resource	yara_rule
behavioral1/memory/2816-0-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral1/memory/1732-19-0x0000000010000000-0x000000001019F000-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	sainbox.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"	sainbox.exe

Deletes itself 1 IoCs

pid	Process
2324	cmd.exe

Executes dropped EXE 2 IoCs

pid	Process
2328	sainbox.exe
1732	sainbox.exe

Loads dropped DLL 1 IoCs

pid	Process
2328	sainbox.exe

Enumerates connected drives 3 TTPs 22 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\L:	sainbox.exe
File opened (read-only)	\??\Q:	sainbox.exe
File opened (read-only)	\??\Z:	sainbox.exe
File opened (read-only)	\??\K:	sainbox.exe
File opened (read-only)	\??\I:	sainbox.exe
File opened (read-only)	\??\O:	sainbox.exe
File opened (read-only)	\??\P:	sainbox.exe
File opened (read-only)	\??\R:	sainbox.exe
File opened (read-only)	\??\T:	sainbox.exe
File opened (read-only)	\??\V:	sainbox.exe
File opened (read-only)	\??\W:	sainbox.exe
File opened (read-only)	\??\H:	sainbox.exe
File opened (read-only)	\??\Y:	sainbox.exe
File opened (read-only)	\??\X:	sainbox.exe
File opened (read-only)	\??\N:	sainbox.exe
File opened (read-only)	\??\S:	sainbox.exe
File opened (read-only)	\??\U:	sainbox.exe
File opened (read-only)	\??\J:	sainbox.exe
File opened (read-only)	\??\E:	sainbox.exe
File opened (read-only)	\??\G:	sainbox.exe
File opened (read-only)	\??\M:	sainbox.exe
File opened (read-only)	\??\B:	sainbox.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\sainbox.exe	e51d7e8517b99977be84d55f0be6f8ecf2994ddc180a94f838d68bc395c93789.exe
File opened for modification	C:\Windows\SysWOW64\sainbox.exe	e51d7e8517b99977be84d55f0be6f8ecf2994ddc180a94f838d68bc395c93789.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	e51d7e8517b99977be84d55f0be6f8ecf2994ddc180a94f838d68bc395c93789.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sainbox.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sainbox.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
2324	cmd.exe
2792	PING.EXE

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	sainbox.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	sainbox.exe

Modifies data under HKEY_USERS 12 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\ActiveMovie\devenum\Version = "7"	sainbox.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	sainbox.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	sainbox.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum	sainbox.exe
Key created	\REGISTRY\USER\.DEFAULT\Software	sainbox.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\ActiveMovie\devenum	sainbox.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	sainbox.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	sainbox.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	sainbox.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	sainbox.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft	sainbox.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\ActiveMovie	sainbox.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2792	PING.EXE

Suspicious behavior: EnumeratesProcesses 33 IoCs

pid	Process
1732	sainbox.exe
1732	sainbox.exe
1732	sainbox.exe
1732	sainbox.exe
1732	sainbox.exe
1732	sainbox.exe
1732	sainbox.exe
1732	sainbox.exe
1732	sainbox.exe
1732	sainbox.exe
1732	sainbox.exe
1732	sainbox.exe
1732	sainbox.exe
1732	sainbox.exe
1732	sainbox.exe
1732	sainbox.exe
1732	sainbox.exe
1732	sainbox.exe
1732	sainbox.exe
1732	sainbox.exe
1732	sainbox.exe
1732	sainbox.exe
1732	sainbox.exe
1732	sainbox.exe
1732	sainbox.exe
1732	sainbox.exe
1732	sainbox.exe
1732	sainbox.exe
1732	sainbox.exe
1732	sainbox.exe
1732	sainbox.exe
1732	sainbox.exe
1732	sainbox.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
1732	sainbox.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2816	e51d7e8517b99977be84d55f0be6f8ecf2994ddc180a94f838d68bc395c93789.exe
Token: SeLoadDriverPrivilege	1732	sainbox.exe
Token: 33	1732	sainbox.exe
Token: SeIncBasePriorityPrivilege	1732	sainbox.exe
Token: 33	1732	sainbox.exe
Token: SeIncBasePriorityPrivilege	1732	sainbox.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2816 wrote to memory of 2324	2816	e51d7e8517b99977be84d55f0be6f8ecf2994ddc180a94f838d68bc395c93789.exe	32
PID 2816 wrote to memory of 2324	2816	e51d7e8517b99977be84d55f0be6f8ecf2994ddc180a94f838d68bc395c93789.exe	32
PID 2816 wrote to memory of 2324	2816	e51d7e8517b99977be84d55f0be6f8ecf2994ddc180a94f838d68bc395c93789.exe	32
PID 2816 wrote to memory of 2324	2816	e51d7e8517b99977be84d55f0be6f8ecf2994ddc180a94f838d68bc395c93789.exe	32
PID 2328 wrote to memory of 1732	2328	sainbox.exe	33
PID 2328 wrote to memory of 1732	2328	sainbox.exe	33
PID 2328 wrote to memory of 1732	2328	sainbox.exe	33
PID 2328 wrote to memory of 1732	2328	sainbox.exe	33
PID 2324 wrote to memory of 2792	2324	cmd.exe	35
PID 2324 wrote to memory of 2792	2324	cmd.exe	35
PID 2324 wrote to memory of 2792	2324	cmd.exe	35
PID 2324 wrote to memory of 2792	2324	cmd.exe	35

C:\Users\Admin\AppData\Local\Temp\e51d7e8517b99977be84d55f0be6f8ecf2994ddc180a94f838d68bc395c93789.exe
"C:\Users\Admin\AppData\Local\Temp\e51d7e8517b99977be84d55f0be6f8ecf2994ddc180a94f838d68bc395c93789.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2816
- 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\E51D7E~1.EXE > nul
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2324
- - 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:2792

C:\Windows\SysWOW64\sainbox.exe
C:\Windows\SysWOW64\sainbox.exe -auto
1⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2328
- C:\Windows\SysWOW64\sainbox.exe
  C:\Windows\SysWOW64\sainbox.exe -acsi
  2⤵
  - Drops file in Drivers directory
  - Sets service image path in registry
  - Executes dropped EXE
  - Enumerates connected drives
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Modifies data under HKEY_USERS
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: LoadsDriver
  - Suspicious use of AdjustPrivilegeToken
  PID:1732

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

Peripheral Device Discovery

Query Registry

Remote System Discovery

1

T1018

System Information Discovery

2

T1082

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\sainbox.exe

Filesize
1.3MB

MD5
1791c919dbd852e46dd5e0471777aa1d

SHA1
e0a1b5667d3a67e489f6a551f100b50c43b75f41

SHA256
e51d7e8517b99977be84d55f0be6f8ecf2994ddc180a94f838d68bc395c93789

SHA512
93dcebc3da28cb8591cb25d0edcb248b2790e58ab305e4b496932566606f993744d6e566e192a8f06f4f7f34ab7bc0688d4670d94cbf35e59a69d47007573b65

Download Submit
memory/1732-19-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download
memory/2816-0-0x0000000010000000-0x000000001019F000-memory.dmp

Filesize
1.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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